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* [linux-next:master] BUILD REGRESSION 5cd631a52568a18b12fd2563418985c8cb63e4b0
From: kernel test robot @ 2023-11-08  6:55 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Linux Memory Management List, apparmor, bpf, gfs2,
	linux-arm-kernel, linux-arm-msm, linux-bcachefs, linux-block,
	linux-gpio, linux-input, linux-leds, linux-mips, linux-mmc,
	linux-riscv, linux-trace-kernel, linux-usb, loongarch, netdev,
	sparclinux

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
branch HEAD: 5cd631a52568a18b12fd2563418985c8cb63e4b0  Add linux-next specific files for 20231107

Error/Warning reports:

https://lore.kernel.org/oe-kbuild-all/202311011659.fOMoFPWP-lkp@intel.com

Error/Warning: (recently discovered and may have been fixed)

fs/bcachefs/disk_groups.c:583:6: warning: no previous prototype for 'bch2_target_to_text_sb' [-Wmissing-prototypes]

Unverified Error/Warning (likely false positive, please contact us if interested):

arch/riscv/kernel/smpboot.c: asm/cpufeature.h is included more than once.

Error/Warning ids grouped by kconfigs:

gcc_recent_errors
|-- alpha-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- alpha-defconfig
|   `-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|-- arc-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- arc-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- arm-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- arm-allnoconfig
|   `-- arch-arm-kernel-process.c:warning:variable-buf-set-but-not-used
|-- arm-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- arm-defconfig
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   `-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|-- arm-randconfig-004-20231107
|   |-- arch-arm-kernel-process.c:warning:variable-buf-set-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   `-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|-- csky-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- csky-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- i386-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- i386-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- i386-debian-10.3
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- i386-defconfig
|   `-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|-- loongarch-allmodconfig
|   |-- arch-loongarch-kernel-asm-offsets.c:warning:no-previous-prototype-for-output_kvm_defines
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- loongarch-allnoconfig
|   `-- arch-loongarch-kernel-asm-offsets.c:warning:no-previous-prototype-for-output_kvm_defines
|-- loongarch-allyesconfig
|   |-- arch-loongarch-kernel-asm-offsets.c:warning:no-previous-prototype-for-output_kvm_defines
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- loongarch-defconfig
|   |-- arch-loongarch-kernel-asm-offsets.c:warning:no-previous-prototype-for-output_kvm_defines
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- m68k-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- m68k-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- m68k-defconfig
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   `-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|-- microblaze-alldefconfig
|   |-- arch-microblaze-kernel-traps.c:warning:no-previous-prototype-for-trap_init
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-fp-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-loglvl-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-pc-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-task-not-described-in-unwind_trap
|   `-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-trace-not-described-in-unwind_trap
|-- microblaze-allmodconfig
|   |-- arch-microblaze-kernel-traps.c:warning:no-previous-prototype-for-trap_init
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-fp-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-loglvl-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-pc-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-task-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-trace-not-described-in-unwind_trap
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- microblaze-allnoconfig
|   |-- arch-microblaze-kernel-traps.c:warning:no-previous-prototype-for-trap_init
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-fp-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-loglvl-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-pc-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-task-not-described-in-unwind_trap
|   `-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-trace-not-described-in-unwind_trap
|-- microblaze-allyesconfig
|   |-- arch-microblaze-kernel-traps.c:warning:no-previous-prototype-for-trap_init
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-fp-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-loglvl-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-pc-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-task-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-trace-not-described-in-unwind_trap
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- microblaze-defconfig
|   |-- arch-microblaze-kernel-traps.c:warning:no-previous-prototype-for-trap_init
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-fp-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-loglvl-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-pc-not-described-in-unwind_trap
|   |-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-task-not-described-in-unwind_trap
|   `-- arch-microblaze-kernel-unwind.c:warning:Function-parameter-or-member-trace-not-described-in-unwind_trap
|-- mips-allmodconfig
|   |-- arch-mips-kernel-ftrace.c:warning:no-previous-prototype-for-prepare_ftrace_return
|   |-- arch-mips-kernel-machine_kexec.c:warning:no-previous-prototype-for-machine_shutdown
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- mips-allyesconfig
|   |-- arch-mips-kernel-ftrace.c:warning:no-previous-prototype-for-prepare_ftrace_return
|   |-- arch-mips-kernel-machine_kexec.c:warning:no-previous-prototype-for-machine_shutdown
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- nios2-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- nios2-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- nios2-randconfig-002-20231107
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   `-- drivers-net-ppp-pppoe.c:warning:variable-pde-set-but-not-used
|-- openrisc-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- openrisc-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- parisc-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- parisc-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- parisc-randconfig-001-20231107
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   `-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|-- powerpc-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- powerpc-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- riscv-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- riscv-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- riscv-defconfig
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- riscv-rv32_defconfig
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- s390-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- s390-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- s390-defconfig
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   `-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|-- sh-allmodconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sh-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-clocksource-timer-ti-32k.c:warning:expecting-prototype-for-timer().-Prototype-was-for-OMAP2_32KSYNCNT_REV_OFF()-instead
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sparc-alldefconfig
|   |-- kernel-dma.c:warning:no-previous-prototype-for-free_dma
|   `-- kernel-dma.c:warning:no-previous-prototype-for-request_dma
|-- sparc-allmodconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sparc-allnoconfig
|   |-- kernel-dma.c:warning:no-previous-prototype-for-free_dma
|   `-- kernel-dma.c:warning:no-previous-prototype-for-request_dma
|-- sparc-allyesconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sparc-defconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   |-- kernel-dma.c:warning:no-previous-prototype-for-free_dma
|   `-- kernel-dma.c:warning:no-previous-prototype-for-request_dma
|-- sparc64-allmodconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sparc64-allyesconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-input-touchscreen-wdt87xx_i2c.c:warning:wdt87xx_acpi_id-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-bcachefs_format.h:warning:p-offset-in-struct-bkey-isn-t-aligned-to
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- sparc64-defconfig
|   |-- arch-sparc-kernel-module.c:error:variable-strtab-set-but-not-used
|   `-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|-- x86_64-allnoconfig
|   |-- arch-riscv-include-asm-insn-def.h:asm-gpr-num.h-is-included-more-than-once.
|   |-- arch-riscv-kernel-smpboot.c:asm-cpufeature.h-is-included-more-than-once.
|   |-- drivers-pinctrl-qcom-pinctrl-lpass-lpi.c:linux-seq_file.h-is-included-more-than-once.
|   |-- include-linux-gpio-consumer.h:linux-err.h-is-included-more-than-once.
|   |-- include-linux-gpio-driver.h:asm-bug.h-is-included-more-than-once.
|   |-- include-linux-gpio-driver.h:linux-err.h-is-included-more-than-once.
|   `-- kernel-bpf-bpf_struct_ops.c:bpf_struct_ops_types.h-is-included-more-than-once.
|-- x86_64-allyesconfig
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-file-not-described-in-binder_task_work_cb
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-length-not-described-in-binder_sg_copy
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-offset-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-skip_size-not-described-in-binder_ptr_fixup
|   |-- drivers-android-binder.c:warning:Function-parameter-or-member-thread-not-described-in-binder_free_buf
|   |-- drivers-android-binder_alloc.c:warning:Function-parameter-or-member-lru-not-described-in-binder_alloc_free_page
|   |-- drivers-firmware-broadcom-bcm47xx_sprom.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character
|   |-- drivers-input-touchscreen-stmpe-ts.c:warning:stmpe_ts_ids-defined-but-not-used
|   |-- drivers-leds-leds-pca955x.c:warning:d-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|   |-- fs-bcachefs-disk_groups.c:warning:no-previous-prototype-for-bch2_target_to_text_sb
|   |-- fs-gfs2-glops.c:warning:Function-parameter-or-member-gl-not-described-in-inode_go_instantiate
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
|   |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   |-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
|   |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
|   |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
|   `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
|-- x86_64-defconfig
|   `-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
|-- x86_64-randconfig-004-20231107
|   |-- block-partitions-aix.c:warning:Function-parameter-or-member-state-not-described-in-read_lba
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-host-not-described-in-memstick_remove_host
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-mrq-not-described-in-memstick_init_req
|   |-- drivers-memstick-core-memstick.c:warning:Function-parameter-or-member-tpc-not-described-in-memstick_init_req
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-in-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-olen-not-described-in-sw842_compress
|   |-- lib-842_compress.c:warning:Function-parameter-or-member-wmem-not-described-in-sw842_compress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-ilen-not-described-in-sw842_decompress
|   |-- lib-842_decompress.c:warning:Function-parameter-or-member-out-not-described-in-sw842_decompress
|   `-- lib-test_ida.c:warning:no-previous-prototype-for-ida_dump
`-- x86_64-rhel-8.3
    |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
    |-- net-8021q-vlan.c:warning:i-directive-output-may-be-truncated-writing-between-and-bytes-into-a-region-of-size-between-and
    |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
    |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
    `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt
clang_recent_errors
`-- x86_64-rhel-8.3-rust
    |-- drivers-usb-host-xhci.c:warning:Function-parameter-or-member-desc-not-described-in-xhci_get_endpoint_index
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-buf-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-len-not-described-in-ftrace_set_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_filter
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_global_notrace
    |-- kernel-trace-ftrace.c:warning:Function-parameter-or-member-reset-not-described-in-ftrace_set_notrace
    |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-level-not-described-in-apparmor_socket_getsockopt
    |-- security-apparmor-lsm.c:warning:Function-parameter-or-member-optname-not-described-in-apparmor_socket_getsockopt
    `-- security-apparmor-lsm.c:warning:Function-parameter-or-member-sock-not-described-in-apparmor_socket_setsockopt

elapsed time: 1647m

configs tested: 101
configs skipped: 2

tested configs:
alpha                             allnoconfig   gcc  
alpha                            allyesconfig   gcc  
alpha                               defconfig   gcc  
arc                              allmodconfig   gcc  
arc                               allnoconfig   gcc  
arc                              allyesconfig   gcc  
arc                                 defconfig   gcc  
arc                 nsimosci_hs_smp_defconfig   gcc  
arm                              allmodconfig   gcc  
arm                               allnoconfig   gcc  
arm                              allyesconfig   gcc  
arm                                 defconfig   gcc  
arm                   randconfig-004-20231107   gcc  
arm                           sunxi_defconfig   gcc  
arm                        vexpress_defconfig   clang
arm64                             allnoconfig   gcc  
csky                             allmodconfig   gcc  
csky                              allnoconfig   gcc  
csky                             allyesconfig   gcc  
csky                                defconfig   gcc  
i386                             allmodconfig   gcc  
i386                              allnoconfig   gcc  
i386                             allyesconfig   gcc  
i386                              debian-10.3   gcc  
i386                                defconfig   gcc  
loongarch                        allmodconfig   gcc  
loongarch                         allnoconfig   gcc  
loongarch                        allyesconfig   gcc  
loongarch                           defconfig   gcc  
m68k                             allmodconfig   gcc  
m68k                              allnoconfig   gcc  
m68k                             allyesconfig   gcc  
m68k                                defconfig   gcc  
microblaze                       alldefconfig   gcc  
microblaze                       allmodconfig   gcc  
microblaze                        allnoconfig   gcc  
microblaze                       allyesconfig   gcc  
microblaze                          defconfig   gcc  
mips                             allmodconfig   gcc  
mips                              allnoconfig   gcc  
mips                             allyesconfig   gcc  
mips                      maltaaprp_defconfig   clang
mips                          rb532_defconfig   gcc  
nios2                            allmodconfig   gcc  
nios2                             allnoconfig   gcc  
nios2                            allyesconfig   gcc  
nios2                               defconfig   gcc  
nios2                 randconfig-002-20231107   gcc  
openrisc                         allmodconfig   gcc  
openrisc                          allnoconfig   gcc  
openrisc                         allyesconfig   gcc  
openrisc                            defconfig   gcc  
openrisc                 simple_smp_defconfig   gcc  
parisc                           allmodconfig   gcc  
parisc                            allnoconfig   gcc  
parisc                           allyesconfig   gcc  
parisc                              defconfig   gcc  
parisc                randconfig-001-20231107   gcc  
parisc64                            defconfig   gcc  
powerpc                          allmodconfig   gcc  
powerpc                           allnoconfig   gcc  
powerpc                          allyesconfig   gcc  
powerpc                       eiger_defconfig   gcc  
powerpc                      tqm8xx_defconfig   gcc  
riscv                            allmodconfig   gcc  
riscv                             allnoconfig   gcc  
riscv                            allyesconfig   gcc  
riscv                               defconfig   gcc  
riscv                          rv32_defconfig   gcc  
s390                             allmodconfig   gcc  
s390                              allnoconfig   gcc  
s390                             allyesconfig   gcc  
s390                                defconfig   gcc  
sh                               allmodconfig   gcc  
sh                                allnoconfig   gcc  
sh                               allyesconfig   gcc  
sh                                  defconfig   gcc  
sh                          landisk_defconfig   gcc  
sh                      rts7751r2d1_defconfig   gcc  
sh                           se7206_defconfig   gcc  
sh                           se7619_defconfig   gcc  
sparc                            alldefconfig   gcc  
sparc                            allmodconfig   gcc  
sparc                             allnoconfig   gcc  
sparc                            allyesconfig   gcc  
sparc                               defconfig   gcc  
sparc64                          allmodconfig   gcc  
sparc64                          allyesconfig   gcc  
sparc64                             defconfig   gcc  
um                               allmodconfig   clang
um                                allnoconfig   clang
um                               allyesconfig   clang
um                                  defconfig   gcc  
um                             i386_defconfig   gcc  
um                           x86_64_defconfig   gcc  
x86_64                            allnoconfig   gcc  
x86_64                           allyesconfig   gcc  
x86_64                              defconfig   gcc  
x86_64                randconfig-004-20231107   gcc  
x86_64                          rhel-8.3-rust   clang
x86_64                               rhel-8.3   gcc  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

^ permalink raw reply

* Re: [RFC v1 8/8] iommu: expose the function iommu_device_use_default_domain
From: Cindy Lu @ 2023-11-08  7:05 UTC (permalink / raw)
  To: Jason Wang; +Cc: mst, yi.l.liu, jgg, linux-kernel, virtualization, netdev
In-Reply-To: <CACGkMEuA3jg06s9wuxTL60geFm6+nnbEnYXvv8HhTgXoFHyJgQ@mail.gmail.com>

On Wed, Nov 8, 2023 at 11:04 AM Jason Wang <jasowang@redhat.com> wrote:
>
> On Tue, Nov 7, 2023 at 2:10 PM Cindy Lu <lulu@redhat.com> wrote:
> >
> > On Mon, Nov 6, 2023 at 3:26 PM Jason Wang <jasowang@redhat.com> wrote:
> > >
> > > On Sat, Nov 4, 2023 at 1:18 AM Cindy Lu <lulu@redhat.com> wrote:
> > > >
> > > > Expose the function iommu_device_use_default_domain() and
> > > > iommu_device_unuse_default_domain()，
> > > > While vdpa bind the iommufd device and detach the iommu device,
> > > > vdpa need to call the function
> > > > iommu_device_unuse_default_domain() to release the owner
> > > >
> > > > Signed-off-by: Cindy Lu <lulu@redhat.com>
> > >
> > > This is the end of the series, who is the user then?
> > >
> > > Thanks
> > >
> > hi Jason
> > These 2 functions was called in vhost_vdpa_iommufd_set_device(), Vdpa need to
> > release the dma owner, otherwise, the function will fail when
> > iommufd called iommu_device_claim_dma_owner() in iommufd_device_bind()
> > I will change this sequence, Or maybe will find some other way to fix
> > this problem
> > thanks
>
> I meant exporting helpers needs to be done before the real users.
>
> Thanks
>
sure will fix
Thanks
Cindy
> > cindy
> >
> >
> > > > ---
> > > >  drivers/iommu/iommu.c | 2 ++
> > > >  1 file changed, 2 insertions(+)
> > > >
> > > > diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> > > > index 3bfc56df4f78..987cbf8c9a87 100644
> > > > --- a/drivers/iommu/iommu.c
> > > > +++ b/drivers/iommu/iommu.c
> > > > @@ -3164,6 +3164,7 @@ int iommu_device_use_default_domain(struct device *dev)
> > > >
> > > >         return ret;
> > > >  }
> > > > +EXPORT_SYMBOL_GPL(iommu_device_use_default_domain);
> > > >
> > > >  /**
> > > >   * iommu_device_unuse_default_domain() - Device driver stops handling device
> > > > @@ -3187,6 +3188,7 @@ void iommu_device_unuse_default_domain(struct device *dev)
> > > >         mutex_unlock(&group->mutex);
> > > >         iommu_group_put(group);
> > > >  }
> > > > +EXPORT_SYMBOL_GPL(iommu_device_unuse_default_domain);
> > > >
> > > >  static int __iommu_group_alloc_blocking_domain(struct iommu_group *group)
> > > >  {
> > > > --
> > > > 2.34.3
> > > >
> > >
> >
>


^ permalink raw reply

* Re: [RFC v1 3/8] vhost: Add 3 new uapi to support iommufd
From: Jason Wang @ 2023-11-08  7:09 UTC (permalink / raw)
  To: Cindy Lu; +Cc: mst, yi.l.liu, jgg, linux-kernel, virtualization, netdev
In-Reply-To: <CACLfguW3NZawOL0ET2K7bmtGZuzQwUfJ2HSgnirswzZK1ayPnA@mail.gmail.com>

On Wed, Nov 8, 2023 at 2:39 PM Cindy Lu <lulu@redhat.com> wrote:
>
> On Wed, Nov 8, 2023 at 11:03 AM Jason Wang <jasowang@redhat.com> wrote:
> >
> > On Tue, Nov 7, 2023 at 2:57 PM Cindy Lu <lulu@redhat.com> wrote:
> > >
> > > On Mon, Nov 6, 2023 at 3:30 PM Jason Wang <jasowang@redhat.com> wrote:
> > > >
> > > > On Sat, Nov 4, 2023 at 1:17 AM Cindy Lu <lulu@redhat.com> wrote:
> > > > >
> > > > > VHOST_VDPA_SET_IOMMU_FD: bind the device to iommufd device
> > > > >
> > > > > VDPA_DEVICE_ATTACH_IOMMUFD_AS: Attach a vdpa device to an iommufd
> > > > > address space specified by IOAS id.
> > > > >
> > > > > VDPA_DEVICE_DETACH_IOMMUFD_AS: Detach a vdpa device
> > > > > from the iommufd address space
> > > > >
> > > > > Signed-off-by: Cindy Lu <lulu@redhat.com>
> > > > > ---
> > > >
> > > > [...]
> > > >
> > > > > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
> > > > > index f5c48b61ab62..07e1b2c443ca 100644
> > > > > --- a/include/uapi/linux/vhost.h
> > > > > +++ b/include/uapi/linux/vhost.h
> > > > > @@ -219,4 +219,70 @@
> > > > >   */
> > > > >  #define VHOST_VDPA_RESUME              _IO(VHOST_VIRTIO, 0x7E)
> > > > >
> > > > > +/* vhost_vdpa_set_iommufd
> > > > > + * Input parameters:
> > > > > + * @iommufd: file descriptor from /dev/iommu; pass -1 to unset
> > > > > + * @iommufd_ioasid: IOAS identifier returned from ioctl(IOMMU_IOAS_ALLOC)
> > > > > + * Output parameters:
> > > > > + * @out_dev_id: device identifier
> > > > > + */
> > > > > +struct vhost_vdpa_set_iommufd {
> > > > > +       __s32 iommufd;
> > > > > +       __u32 iommufd_ioasid;
> > > > > +       __u32 out_dev_id;
> > > > > +};
> > > > > +
> > > > > +#define VHOST_VDPA_SET_IOMMU_FD \
> > > > > +       _IOW(VHOST_VIRTIO, 0x7F, struct vhost_vdpa_set_iommufd)
> > > > > +
> > > > > +/*
> > > > > + * VDPA_DEVICE_ATTACH_IOMMUFD_AS -
> > > > > + * _IOW(VHOST_VIRTIO, 0x7f, struct vdpa_device_attach_iommufd_as)
> > > > > + *
> > > > > + * Attach a vdpa device to an iommufd address space specified by IOAS
> > > > > + * id.
> > > > > + *
> > > > > + * Available only after a device has been bound to iommufd via
> > > > > + * VHOST_VDPA_SET_IOMMU_FD
> > > > > + *
> > > > > + * Undo by VDPA_DEVICE_DETACH_IOMMUFD_AS or device fd close.
> > > > > + *
> > > > > + * @argsz:     user filled size of this data.
> > > > > + * @flags:     must be 0.
> > > > > + * @ioas_id:   Input the target id which can represent an ioas
> > > > > + *             allocated via iommufd subsystem.
> > > > > + *
> > > > > + * Return: 0 on success, -errno on failure.
> > > > > + */
> > > > > +struct vdpa_device_attach_iommufd_as {
> > > > > +       __u32 argsz;
> > > > > +       __u32 flags;
> > > > > +       __u32 ioas_id;
> > > > > +};
> > > >
> > > > I think we need to map ioas to vDPA AS, so there should be an ASID
> > > > from the view of vDPA?
> > > >
> > > > Thanks
> > > >
> > > The qemu will have a structure save and  maintain this information,So
> > > I didn't add this
> > >  in kernel，we can add this but maybe only for check?
> >
> > I meant for example, a simulator has two AS. How can we attach an ioas
> > to a specific AS with the above uAPI?
> >
> > Thank>
> this   __u32 ioas_id here is alloc from the iommufd system. maybe I
> need to change to new name iommuds_asid to
> make this more clear
> the process in qemu is
>
> 1) qemu want to use AS 0 (for example)
> 2) checking the existing asid. the asid 0 not used before
> 3 )alloc new asid from iommufd system, get new ioas_id (maybe 3 for example)
> qemu will save this relation 3<-->0 in the driver.
> 4) setting the ioctl VDPA_DEVICE_ATTACH_IOMMUFD_AS to attach new ASID
> to the kernel

So if we want to map IOMMUFD AS 3 to VDPA AS 0, how can it be done?

For example I didn't see a vDPA AS parameter in the above uAPI.

vhost_vdpa_set_iommufd has iommufd_ioasid which is obviously not the vDPA AS.

And ioas_id of vdpa_device_attach_iommufd_as (as you explained above)
is not vDPA AS.

Thanks


> 5） while map the memory， qemu will use ASID 3 to map /umap
> and use ASID 0 for legacy mode map/umap
>
> So kernel here will not maintain the ioas_id from iommufd，
> and this also make the code strange since there will 2 different asid
> for the same AS, maybe we can save these information in the kernel
> Thanks
> cindy
> > > Thanks
> > > Cindy
> > > > > +
> > > > > +#define VDPA_DEVICE_ATTACH_IOMMUFD_AS \
> > > > > +       _IOW(VHOST_VIRTIO, 0x82, struct vdpa_device_attach_iommufd_as)
> > > > > +
> > > > > +/*
> > > > > + * VDPA_DEVICE_DETACH_IOMMUFD_AS
> > > > > + *
> > > > > + * Detach a vdpa device from the iommufd address space it has been
> > > > > + * attached to. After it, device should be in a blocking DMA state.
> > > > > + *
> > > > > + * Available only after a device has been bound to iommufd via
> > > > > + * VHOST_VDPA_SET_IOMMU_FD
> > > > > + *
> > > > > + * @argsz:     user filled size of this data.
> > > > > + * @flags:     must be 0.
> > > > > + *
> > > > > + * Return: 0 on success, -errno on failure.
> > > > > + */
> > > > > +struct vdpa_device_detach_iommufd_as {
> > > > > +       __u32 argsz;
> > > > > +       __u32 flags;
> > > > > +};
> > > > > +
> > > > > +#define VDPA_DEVICE_DETACH_IOMMUFD_AS \
> > > > > +       _IOW(VHOST_VIRTIO, 0x83, struct vdpa_device_detach_iommufd_as)
> > > > > +
> > > > >  #endif
> > > > > --
> > > > > 2.34.3
> > > > >
> > > >
> > >
> >
>


^ permalink raw reply

* [RFC PATCH v1 1/2] virtio/vsock: send credit update during setting SO_RCVLOWAT
From: Arseniy Krasnov @ 2023-11-08  7:20 UTC (permalink / raw)
  To: Stefan Hajnoczi, Stefano Garzarella, David S. Miller,
	Eric Dumazet, Jakub Kicinski, Paolo Abeni, Michael S. Tsirkin,
	Jason Wang, Bobby Eshleman
  Cc: kvm, virtualization, netdev, linux-kernel, kernel, oxffffaa,
	avkrasnov
In-Reply-To: <20231108072004.1045669-1-avkrasnov@salutedevices.com>

This adds sending credit update message when SO_RCVLOWAT is updated and
it is bigger than number of bytes in rx queue. It is needed, because
'poll()' will wait until number of bytes in rx queue will be not smaller
than SO_RCVLOWAT, so kick sender to send more data. Otherwise mutual
hungup for tx/rx is possible: sender waits for free space and receiver
is waiting data in 'poll()'.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
---
 drivers/vhost/vsock.c                   |  2 ++
 include/linux/virtio_vsock.h            |  1 +
 net/vmw_vsock/virtio_transport.c        |  2 ++
 net/vmw_vsock/virtio_transport_common.c | 31 +++++++++++++++++++++++++
 net/vmw_vsock/vsock_loopback.c          |  2 ++
 5 files changed, 38 insertions(+)

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index f75731396b7e..ecfa5c11f5ee 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -451,6 +451,8 @@ static struct virtio_transport vhost_transport = {
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
 
 		.read_skb = virtio_transport_read_skb,
+
+		.set_rcvlowat             = virtio_transport_set_rcvlowat
 	},
 
 	.send_pkt = vhost_transport_send_pkt,
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index ebb3ce63d64d..97dc1bebc69c 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -256,4 +256,5 @@ void virtio_transport_put_credit(struct virtio_vsock_sock *vvs, u32 credit);
 void virtio_transport_deliver_tap_pkt(struct sk_buff *skb);
 int virtio_transport_purge_skbs(void *vsk, struct sk_buff_head *list);
 int virtio_transport_read_skb(struct vsock_sock *vsk, skb_read_actor_t read_actor);
+int virtio_transport_set_rcvlowat(struct vsock_sock *vsk, int val);
 #endif /* _LINUX_VIRTIO_VSOCK_H */
diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index af5bab1acee1..cf3431189d0c 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -539,6 +539,8 @@ static struct virtio_transport virtio_transport = {
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
 
 		.read_skb = virtio_transport_read_skb,
+
+		.set_rcvlowat             = virtio_transport_set_rcvlowat
 	},
 
 	.send_pkt = virtio_transport_send_pkt,
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index e22c81435ef7..88a58163046e 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1676,6 +1676,37 @@ int virtio_transport_read_skb(struct vsock_sock *vsk, skb_read_actor_t recv_acto
 }
 EXPORT_SYMBOL_GPL(virtio_transport_read_skb);
 
+int virtio_transport_set_rcvlowat(struct vsock_sock *vsk, int val)
+{
+	struct virtio_vsock_sock *vvs = vsk->trans;
+	bool send_update = false;
+
+	spin_lock_bh(&vvs->rx_lock);
+
+	/* If number of available bytes is less than new
+	 * SO_RCVLOWAT value, kick sender to send more
+	 * data, because sender may sleep in its 'send()'
+	 * syscall waiting for enough space at our side.
+	 */
+	if (vvs->rx_bytes < val)
+		send_update = true;
+
+	spin_unlock_bh(&vvs->rx_lock);
+
+	if (send_update) {
+		int err;
+
+		err = virtio_transport_send_credit_update(vsk);
+		if (err < 0)
+			return err;
+	}
+
+	WRITE_ONCE(sk_vsock(vsk)->sk_rcvlowat, val ? : 1);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(virtio_transport_set_rcvlowat);
+
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Asias He");
 MODULE_DESCRIPTION("common code for virtio vsock");
diff --git a/net/vmw_vsock/vsock_loopback.c b/net/vmw_vsock/vsock_loopback.c
index 048640167411..388c157f6633 100644
--- a/net/vmw_vsock/vsock_loopback.c
+++ b/net/vmw_vsock/vsock_loopback.c
@@ -98,6 +98,8 @@ static struct virtio_transport loopback_transport = {
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
 
 		.read_skb = virtio_transport_read_skb,
+
+		.set_rcvlowat             = virtio_transport_set_rcvlowat
 	},
 
 	.send_pkt = vsock_loopback_send_pkt,
-- 
2.25.1


^ permalink raw reply related

* [RFC PATCH v1 0/2] send credit update during setting SO_RCVLOWAT
From: Arseniy Krasnov @ 2023-11-08  7:20 UTC (permalink / raw)
  To: Stefan Hajnoczi, Stefano Garzarella, David S. Miller,
	Eric Dumazet, Jakub Kicinski, Paolo Abeni, Michael S. Tsirkin,
	Jason Wang, Bobby Eshleman
  Cc: kvm, virtualization, netdev, linux-kernel, kernel, oxffffaa,
	avkrasnov

Hello,

                               DESCRIPTION

This patchset fixes old problem with hungup of both rx/tx sides and adds
test for it. This happens due to non-default SO_RCVLOWAT value and
deferred credit update in virtio/vsock. Link to previous old patchset:
https://lore.kernel.org/netdev/39b2e9fd-601b-189d-39a9-914e5574524c@sberdevices.ru/

Here is what happens step by step:

                                  TEST

                            INITIAL CONDITIONS

1) Vsock buffer size is 128KB.
2) Maximum packet size is also 64KB as defined in header (yes it is
   hardcoded, just to remind about that value).
3) SO_RCVLOWAT is default, e.g. 1 byte.


                                 STEPS

            SENDER                              RECEIVER
1) sends 128KB + 1 byte in a
   single buffer. 128KB will
   be sent, but for 1 byte
   sender will wait for free
   space at peer. Sender goes
   to sleep.


2)                                     reads 64KB, credit update not sent
3)                                     sets SO_RCVLOWAT to 64KB + 1
4)                                     poll() -> wait forever, there is
                                       only 64KB available to read.

So in step 4) receiver also goes to sleep, waiting for enough data or
connection shutdown message from the sender. Idea to fix it is that rx
kicks tx side to continue transmission (and may be close connection)
when rx changes number of bytes to be woken up (e.g. SO_RCVLOWAT) and
this value is bigger than number of available bytes to read.

I've added small test for this, but not sure as it uses hardcoded value
for maximum packet length, this value is defined in kernel header and
used to control deferred credit update. And as this is not available to
userspace, I can't control test parameters correctly (if one day this
define will be changed - test may become useless). 

Head for this patchset is:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=ff269e2cd5adce4ae14f883fc9c8803bc43ee1e9

Arseniy Krasnov (2):
  virtio/vsock: send credit update during setting SO_RCVLOWAT
  vsock/test: SO_RCVLOWAT + deferred credit update test

 drivers/vhost/vsock.c                   |   2 +
 include/linux/virtio_vsock.h            |   1 +
 net/vmw_vsock/virtio_transport.c        |   2 +
 net/vmw_vsock/virtio_transport_common.c |  31 ++++++
 net/vmw_vsock/vsock_loopback.c          |   2 +
 tools/testing/vsock/vsock_test.c        | 131 ++++++++++++++++++++++++
 6 files changed, 169 insertions(+)

-- 
2.25.1


^ permalink raw reply

* [RFC PATCH v1 2/2] vsock/test: SO_RCVLOWAT + deferred credit update test
From: Arseniy Krasnov @ 2023-11-08  7:20 UTC (permalink / raw)
  To: Stefan Hajnoczi, Stefano Garzarella, David S. Miller,
	Eric Dumazet, Jakub Kicinski, Paolo Abeni, Michael S. Tsirkin,
	Jason Wang, Bobby Eshleman
  Cc: kvm, virtualization, netdev, linux-kernel, kernel, oxffffaa,
	avkrasnov
In-Reply-To: <20231108072004.1045669-1-avkrasnov@salutedevices.com>

This adds test which checks, that updating SO_RCVLOWAT value also sends
credit update message. Otherwise mutual hungup may happen when receiver
didn't send credit update and then calls 'poll()' with non default
SO_RCVLOWAT value (e.g. waiting enough bytes to read), while sender
waits for free space at receiver's side.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
---
 tools/testing/vsock/vsock_test.c | 131 +++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)

diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index c1f7bc9abd22..c71b3875fd16 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -1180,6 +1180,132 @@ static void test_stream_shutrd_server(const struct test_opts *opts)
 	close(fd);
 }
 
+#define RCVLOWAT_CREDIT_UPD_BUF_SIZE	(1024 * 128)
+#define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE	(1024 * 64)
+
+static void test_stream_rcvlowat_def_cred_upd_client(const struct test_opts *opts)
+{
+	size_t buf_size;
+	void *buf;
+	int fd;
+
+	fd = vsock_stream_connect(opts->peer_cid, 1234);
+	if (fd < 0) {
+		perror("connect");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Send 1 byte more than peer's buffer size. */
+	buf_size = RCVLOWAT_CREDIT_UPD_BUF_SIZE + 1;
+
+	buf = malloc(buf_size);
+	if (!buf) {
+		perror("malloc");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Wait until peer sets needed buffer size. */
+	control_expectln("SRVREADY");
+
+	if (send(fd, buf, buf_size, 0) != buf_size) {
+		perror("send failed");
+		exit(EXIT_FAILURE);
+	}
+
+	free(buf);
+	close(fd);
+}
+
+static void test_stream_rcvlowat_def_cred_upd_server(const struct test_opts *opts)
+{
+	size_t recv_buf_size;
+	struct pollfd fds;
+	size_t buf_size;
+	void *buf;
+	int fd;
+
+	fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
+	if (fd < 0) {
+		perror("accept");
+		exit(EXIT_FAILURE);
+	}
+
+	buf_size = RCVLOWAT_CREDIT_UPD_BUF_SIZE;
+
+	if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE,
+		       &buf_size, sizeof(buf_size))) {
+		perror("setsockopt(SO_VM_SOCKETS_BUFFER_SIZE)");
+		exit(EXIT_FAILURE);
+	}
+
+	buf = malloc(buf_size);
+	if (!buf) {
+		perror("malloc");
+		exit(EXIT_FAILURE);
+	}
+
+	control_writeln("SRVREADY");
+
+	/* Wait until there will be 128KB of data in rx queue. */
+	while (1) {
+		ssize_t res;
+
+		res = recv(fd, buf, buf_size, MSG_PEEK);
+		if (res == buf_size)
+			break;
+
+		if (res <= 0) {
+			fprintf(stderr, "unexpected 'recv()' return: %zi\n", res);
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	/* There is 128KB of data in the socket's rx queue,
+	 * dequeue first 64KB, credit update is not sent.
+	 */
+	recv_buf_size = VIRTIO_VSOCK_MAX_PKT_BUF_SIZE;
+	recv_buf(fd, buf, recv_buf_size, 0, recv_buf_size);
+	recv_buf_size++;
+
+	/* Updating SO_RCVLOWAT will send credit update. */
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT,
+		       &recv_buf_size, sizeof(recv_buf_size))) {
+		perror("setsockopt(SO_RCVLOWAT)");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&fds, 0, sizeof(fds));
+	fds.fd = fd;
+	fds.events = POLLIN | POLLRDNORM | POLLERR |
+		     POLLRDHUP | POLLHUP;
+
+	/* This 'poll()' will return once we receive last byte
+	 * sent by client.
+	 */
+	if (poll(&fds, 1, -1) < 0) {
+		perror("poll");
+		exit(EXIT_FAILURE);
+	}
+
+	if (fds.revents & POLLERR) {
+		fprintf(stderr, "'poll()' error\n");
+		exit(EXIT_FAILURE);
+	}
+
+	if (fds.revents & (POLLIN | POLLRDNORM)) {
+		recv_buf(fd, buf, recv_buf_size, 0, recv_buf_size);
+	} else {
+		/* These flags must be set, as there is at
+		 * least 64KB of data ready to read.
+		 */
+		fprintf(stderr, "POLLIN | POLLRDNORM expected\n");
+		exit(EXIT_FAILURE);
+	}
+
+	free(buf);
+	close(fd);
+}
+
 static struct test_case test_cases[] = {
 	{
 		.name = "SOCK_STREAM connection reset",
@@ -1285,6 +1411,11 @@ static struct test_case test_cases[] = {
 		.run_client = test_stream_msgzcopy_empty_errq_client,
 		.run_server = test_stream_msgzcopy_empty_errq_server,
 	},
+	{
+		.name = "SOCK_STREAM virtio SO_RCVLOWAT + deferred cred update",
+		.run_client = test_stream_rcvlowat_def_cred_upd_client,
+		.run_server = test_stream_rcvlowat_def_cred_upd_server,
+	},
 	{},
 };
 
-- 
2.25.1


^ permalink raw reply related

* Re: [PATCH net-next] net/core: Enable socket busy polling on -RT
From: Kurt Kanzenbach @ 2023-11-08  7:41 UTC (permalink / raw)
  To: Florian Bezdeka, David S. Miller, Eric Dumazet, Jakub Kicinski,
	Paolo Abeni
  Cc: netdev, Sebastian Andrzej Siewior, jan.kiszka, vivek.behera
In-Reply-To: <fc7fb885df3a52d076bb71191afa786d19d79cd5.camel@siemens.com>

[-- Attachment #1: Type: text/plain, Size: 1126 bytes --]

Hi Florian,

On Mon Oct 30 2023, Florian Bezdeka wrote:
>> > > Allow RX_BUSY_POLL on PREEMPT_RT if NETPOLL is disabled. Don't disable
>> > > preemption on PREEMPT_RT within the busy poll loop.
>
> Sorry, I need one more information here: We try to re-use the kernel
> and its configuration from Debian whenever possible. NETPOLL/NETCONSOLE
> is build as module there.
>
> Will this limitation be addressed in the future? Is someone already
> working on that? Is that maybe on the radar for the ongoing printk()
> work? (Assuming printk() with NETCONSOLE enabled is the underlying
> problem)
>
> We don't use NETPOLL/NETCONSOLE during runtime but it is enabled at
> build time. Sadly we can not use busy polling mode in combination with
> XDP now. (Ignoring the fact that we could adjust the kernel
> configuration, build on our own, ...)
>
> Would love to hear your thoughts about that. Thanks a lot!

Yes, the busy polling conflicts with netpoll due to the locking. At the
moment you have to disable it in the kernel configuration and
re-compile. I don't think anyone is working on solving this limitation
yet.

Thanks,
Kurt

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^ permalink raw reply

* Re: [syzbot] [dccp?] general protection fault in dccp_write_xmit (2)
From: syzbot @ 2023-11-08  8:03 UTC (permalink / raw)
  To: bragathemanick0908, davem, dccp, edumazet, kuba, linux-kernel,
	netdev, pabeni, syzkaller-bugs
In-Reply-To: <0000000000009e122006088a2b8d@google.com>

syzbot has bisected this issue to:

commit 419ce133ab928ab5efd7b50b2ef36ddfd4eadbd2
Author: Paolo Abeni <pabeni@redhat.com>
Date:   Wed Oct 11 07:20:55 2023 +0000

    tcp: allow again tcp_disconnect() when threads are waiting

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=142a647b680000
start commit:   ff269e2cd5ad Merge tag 'net-next-6.7-followup' of git://gi..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=162a647b680000
console output: https://syzkaller.appspot.com/x/log.txt?x=122a647b680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=53cdcbf124ea14aa
dashboard link: https://syzkaller.appspot.com/bug?extid=c71bc336c5061153b502
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142bff40e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1559f190e80000

Reported-by: syzbot+c71bc336c5061153b502@syzkaller.appspotmail.com
Fixes: 419ce133ab92 ("tcp: allow again tcp_disconnect() when threads are waiting")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

^ permalink raw reply

* Re: Missing a write memory barrier in tls_init()
From: Sabrina Dubroca @ 2023-11-08  9:07 UTC (permalink / raw)
  To: Jakub Kicinski
  Cc: Dae R. Jeong, borisp, john.fastabend, davem, edumazet, pabeni,
	netdev, linux-kernel, ywchoi
In-Reply-To: <20231107185324.22eecf10@kernel.org>

2023-11-07, 18:53:24 -0800, Jakub Kicinski wrote:
> On Tue, 7 Nov 2023 23:45:46 +0100 Sabrina Dubroca wrote:
> > Wouldn't it be enough to just move the rcu_assign_pointer after ctx is
> > fully initialized, ie just before update_sk_prot? also clearer wrt
> > RCU.
> 
> I'm not sure, IIUC rcu_assign_pointer() is equivalent to
> WRITE_ONCE() on any sane architecture, it depends on address
> dependencies to provide ordering.

Not what the doc says:

    /**
     * rcu_assign_pointer() - assign to RCU-protected pointer
     [...]
     * Inserts memory barriers on architectures that require them
     * (which is most of them), and also prevents the compiler from
     * reordering the code that initializes the structure after the pointer
     * assignment.
     [...]
     */

And it uses smp_store_release (unless writing NULL).


rcu_dereference is the one that usually doesn't contain a barrier:

    /**
     * rcu_dereference_check() - rcu_dereference with debug checking
     [...]
     * Inserts memory barriers on architectures that require them
     * (currently only the Alpha), prevents the compiler from refetching
     * (and from merging fetches), and, more importantly, documents exactly
     * which pointers are protected by RCU and checks that the pointer is
     * annotated as __rcu.
     */


> Since here we care about
> ctx->sk_prot being updated, when changes to sk->sk_prot
> are visible there is no super-obvious address dependency.
> 
> There may be one. But to me at least it isn't an obvious
> "RCU used right will handle this" case.

Ok, I think you're right. Looking at smp_store_release used by rcu_assign_pointer:

    #define __smp_store_release(p, v)					\
    do {									\
    	compiletime_assert_atomic_type(*p);				\
    	barrier();							\
    	WRITE_ONCE(*p, v);						\
    } while (0)

it's only going to make sure ctx->sk_proto is set when ctx is visible,
and not guarantee that ctx is visible whenever sk->sk_prot has been
switched over.

-- 
Sabrina


^ permalink raw reply

* Re: [PATCH 1/2] tg3: Move the [rt]x_dropped counters to tg3_napi
From: Michael Chan @ 2023-11-08  9:11 UTC (permalink / raw)
  To: alexey.pakhunov
  Cc: mchan, vincent.wong2, netdev, linux-kernel, siva.kallam, prashant
In-Reply-To: <20231108010129.2009947-1-alexey.pakhunov@spacex.com>

[-- Attachment #1: Type: text/plain, Size: 2126 bytes --]

On Tue, Nov 7, 2023 at 5:01 PM <alexey.pakhunov@spacex.com> wrote:
>
> From: Alex Pakhunov <alexey.pakhunov@spacex.com>
>
> This change moves [rt]x_dropped counters to tg3_napi so that they can be
> updated by a single writer, race-free.
>
> Signed-off-by: Alex Pakhunov <alexey.pakhunov@spacex.com>
> Signed-off-by: Vincent Wong <vincent.wong2@spacex.com>
> ---
...
> @@ -11895,6 +11898,9 @@ static void tg3_get_nstats(struct tg3 *tp, struct rtnl_link_stats64 *stats)
>  {
>         struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;
>         struct tg3_hw_stats *hw_stats = tp->hw_stats;
> +       unsigned long rx_dropped = 0;
> +       unsigned long tx_dropped = 0;
> +       int i;
>
>         stats->rx_packets = old_stats->rx_packets +
>                 get_stat64(&hw_stats->rx_ucast_packets) +
> @@ -11941,8 +11947,23 @@ static void tg3_get_nstats(struct tg3 *tp, struct rtnl_link_stats64 *stats)
>         stats->rx_missed_errors = old_stats->rx_missed_errors +
>                 get_stat64(&hw_stats->rx_discards);
>
> -       stats->rx_dropped = tp->rx_dropped;
> -       stats->tx_dropped = tp->tx_dropped;
> +       /* Aggregate per-queue counters. The per-queue counters are updated
> +        * by a single writer, race-free. The result computed by this loop
> +        * might not be 100% accurate (counters can be updated in the middle of
> +        * the loop) but the next tg3_get_nstats() will recompute the current
> +        * value so it is acceptable.
> +        */
> +       for (i = 0; i < tp->irq_cnt; i++) {
> +               struct tg3_napi *tnapi = &tp->napi[i];
> +
> +               rx_dropped += tnapi->rx_dropped;
> +               tx_dropped += tnapi->tx_dropped;
> +       }
> +
> +       /* The counters wrap around at 4G on 32bit machines. */
> +       stats->rx_dropped = rx_dropped;
> +       stats->tx_dropped = tx_dropped;

I think here we need to keep these counters accumulate across a reset:

stats->rx_dropped = old_stats->rx_dropped + rx_dropped;
stats->tx_dropped = old_stats->tx_dropped + tx_dropped;

> +
>  }
>

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^ permalink raw reply

* Re: [PATCH bpf-next] selftests/xsk: fix for SEND_RECEIVE_UNALIGNED test.
From: Magnus Karlsson @ 2023-11-08  9:35 UTC (permalink / raw)
  To: Tushar Vyavahare
  Cc: bpf, netdev, bjorn, magnus.karlsson, maciej.fijalkowski,
	jonathan.lemon, davem, kuba, pabeni, ast, daniel,
	tirthendu.sarkar
In-Reply-To: <20231103142936.393654-1-tushar.vyavahare@intel.com>

On Fri, 3 Nov 2023 at 15:41, Tushar Vyavahare
<tushar.vyavahare@intel.com> wrote:
>
> Fix test broken by shared umem test and framework enhancement commit.
>
> Correct the current implementation of pkt_stream_replace_half() by
> ensuring that nb_valid_entries are not set to half, as this is not true
> for all the tests.
>
> Create a new function called pkt_modify() that allows for packet
> modification to meet specific requirements while ensuring the accurate
> maintenance of the valid packet count to prevent inconsistencies in packet
> tracking.

Thanks for the fix Tushar. While long, this gives the packet stream
modification functionality a better structure.

Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>

> Fixes: 6d198a89c004 ("selftests/xsk: Add a test for shared umem feature")
> Reported-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
> Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
> ---
>  tools/testing/selftests/bpf/xskxceiver.c | 71 ++++++++++++++++--------
>  1 file changed, 47 insertions(+), 24 deletions(-)
>
> diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
> index 591ca9637b23..f7d3a4a9013f 100644
> --- a/tools/testing/selftests/bpf/xskxceiver.c
> +++ b/tools/testing/selftests/bpf/xskxceiver.c
> @@ -634,16 +634,35 @@ static u32 pkt_nb_frags(u32 frame_size, struct pkt_stream *pkt_stream, struct pk
>         return nb_frags;
>  }
>
> -static void pkt_set(struct pkt_stream *pkt_stream, struct pkt *pkt, int offset, u32 len)
> +static bool pkt_valid(bool unaligned_mode, int offset, u32 len)
> +{
> +       if (len > MAX_ETH_JUMBO_SIZE || (!unaligned_mode && offset < 0))
> +               return false;
> +
> +       return true;
> +}
> +
> +static void pkt_set(struct pkt_stream *pkt_stream, struct xsk_umem_info *umem, struct pkt *pkt,
> +                   int offset, u32 len)
>  {
>         pkt->offset = offset;
>         pkt->len = len;
> -       if (len > MAX_ETH_JUMBO_SIZE) {
> -               pkt->valid = false;
> -       } else {
> -               pkt->valid = true;
> +
> +       pkt->valid = pkt_valid(umem->unaligned_mode, offset, len);
> +       if (pkt->valid)
>                 pkt_stream->nb_valid_entries++;
> -       }
> +}
> +
> +static void pkt_modify(struct pkt_stream *pkt_stream, struct xsk_umem_info *umem, struct pkt *pkt,
> +                      int offset, u32 len)
> +{
> +       bool mod_valid;
> +
> +       pkt->offset = offset;
> +       pkt->len = len;
> +       mod_valid  = pkt_valid(umem->unaligned_mode, offset, len);
> +       pkt_stream->nb_valid_entries += mod_valid - pkt->valid;
> +       pkt->valid = mod_valid;
>  }
>
>  static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len)
> @@ -651,7 +670,8 @@ static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len)
>         return ceil_u32(len, umem->frame_size) * umem->frame_size;
>  }
>
> -static struct pkt_stream *__pkt_stream_generate(u32 nb_pkts, u32 pkt_len, u32 nb_start, u32 nb_off)
> +static struct pkt_stream *__pkt_stream_generate(struct xsk_umem_info *umem, u32 nb_pkts,
> +                                               u32 pkt_len, u32 nb_start, u32 nb_off)
>  {
>         struct pkt_stream *pkt_stream;
>         u32 i;
> @@ -665,30 +685,31 @@ static struct pkt_stream *__pkt_stream_generate(u32 nb_pkts, u32 pkt_len, u32 nb
>         for (i = 0; i < nb_pkts; i++) {
>                 struct pkt *pkt = &pkt_stream->pkts[i];
>
> -               pkt_set(pkt_stream, pkt, 0, pkt_len);
> +               pkt_set(pkt_stream, umem, pkt, 0, pkt_len);
>                 pkt->pkt_nb = nb_start + i * nb_off;
>         }
>
>         return pkt_stream;
>  }
>
> -static struct pkt_stream *pkt_stream_generate(u32 nb_pkts, u32 pkt_len)
> +static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb_pkts, u32 pkt_len)
>  {
> -       return __pkt_stream_generate(nb_pkts, pkt_len, 0, 1);
> +       return __pkt_stream_generate(umem, nb_pkts, pkt_len, 0, 1);
>  }
>
> -static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream)
> +static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream,
> +                                          struct xsk_umem_info *umem)
>  {
> -       return pkt_stream_generate(pkt_stream->nb_pkts, pkt_stream->pkts[0].len);
> +       return pkt_stream_generate(umem, pkt_stream->nb_pkts, pkt_stream->pkts[0].len);
>  }
>
>  static void pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len)
>  {
>         struct pkt_stream *pkt_stream;
>
> -       pkt_stream = pkt_stream_generate(nb_pkts, pkt_len);
> +       pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, nb_pkts, pkt_len);
>         test->ifobj_tx->xsk->pkt_stream = pkt_stream;
> -       pkt_stream = pkt_stream_generate(nb_pkts, pkt_len);
> +       pkt_stream = pkt_stream_generate(test->ifobj_tx->umem, nb_pkts, pkt_len);
>         test->ifobj_rx->xsk->pkt_stream = pkt_stream;
>  }
>
> @@ -698,12 +719,11 @@ static void __pkt_stream_replace_half(struct ifobject *ifobj, u32 pkt_len,
>         struct pkt_stream *pkt_stream;
>         u32 i;
>
> -       pkt_stream = pkt_stream_clone(ifobj->xsk->pkt_stream);
> +       pkt_stream = pkt_stream_clone(ifobj->xsk->pkt_stream, ifobj->umem);
>         for (i = 1; i < ifobj->xsk->pkt_stream->nb_pkts; i += 2)
> -               pkt_set(pkt_stream, &pkt_stream->pkts[i], offset, pkt_len);
> +               pkt_modify(pkt_stream, ifobj->umem, &pkt_stream->pkts[i], offset, pkt_len);
>
>         ifobj->xsk->pkt_stream = pkt_stream;
> -       pkt_stream->nb_valid_entries /= 2;
>  }
>
>  static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int offset)
> @@ -715,9 +735,10 @@ static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int off
>  static void pkt_stream_receive_half(struct test_spec *test)
>  {
>         struct pkt_stream *pkt_stream = test->ifobj_tx->xsk->pkt_stream;
> +       struct xsk_umem_info *umem = test->ifobj_rx->umem;
>         u32 i;
>
> -       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(pkt_stream->nb_pkts,
> +       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(umem, pkt_stream->nb_pkts,
>                                                               pkt_stream->pkts[0].len);
>         pkt_stream = test->ifobj_rx->xsk->pkt_stream;
>         for (i = 1; i < pkt_stream->nb_pkts; i += 2)
> @@ -733,12 +754,12 @@ static void pkt_stream_even_odd_sequence(struct test_spec *test)
>
>         for (i = 0; i < test->nb_sockets; i++) {
>                 pkt_stream = test->ifobj_tx->xsk_arr[i].pkt_stream;
> -               pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
> +               pkt_stream = __pkt_stream_generate(test->ifobj_tx->umem, pkt_stream->nb_pkts / 2,
>                                                    pkt_stream->pkts[0].len, i, 2);
>                 test->ifobj_tx->xsk_arr[i].pkt_stream = pkt_stream;
>
>                 pkt_stream = test->ifobj_rx->xsk_arr[i].pkt_stream;
> -               pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
> +               pkt_stream = __pkt_stream_generate(test->ifobj_rx->umem, pkt_stream->nb_pkts / 2,
>                                                    pkt_stream->pkts[0].len, i, 2);
>                 test->ifobj_rx->xsk_arr[i].pkt_stream = pkt_stream;
>         }
> @@ -1961,7 +1982,8 @@ static int testapp_stats_tx_invalid_descs(struct test_spec *test)
>  static int testapp_stats_rx_full(struct test_spec *test)
>  {
>         pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
> -       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
> +       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
> +                                                             DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
>
>         test->ifobj_rx->xsk->rxqsize = DEFAULT_UMEM_BUFFERS;
>         test->ifobj_rx->release_rx = false;
> @@ -1972,7 +1994,8 @@ static int testapp_stats_rx_full(struct test_spec *test)
>  static int testapp_stats_fill_empty(struct test_spec *test)
>  {
>         pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
> -       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
> +       test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
> +                                                             DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
>
>         test->ifobj_rx->use_fill_ring = false;
>         test->ifobj_rx->validation_func = validate_fill_empty;
> @@ -2526,8 +2549,8 @@ int main(int argc, char **argv)
>         init_iface(ifobj_tx, worker_testapp_validate_tx);
>
>         test_spec_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
> -       tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
> -       rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
> +       tx_pkt_stream_default = pkt_stream_generate(ifobj_tx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
> +       rx_pkt_stream_default = pkt_stream_generate(ifobj_rx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
>         if (!tx_pkt_stream_default || !rx_pkt_stream_default)
>                 exit_with_error(ENOMEM);
>         test.tx_pkt_stream_default = tx_pkt_stream_default;
> --
> 2.34.1
>
>

^ permalink raw reply

* Re: [PATCH net] net/smc: avoid data corruption caused by decline
From: D. Wythe @ 2023-11-08  9:42 UTC (permalink / raw)
  To: Jakub Kicinski
  Cc: kgraul, wenjia, jaka, wintera, davem, netdev, linux-s390,
	linux-rdma
In-Reply-To: <20231107183809.58859c8f@kernel.org>



On 11/8/23 10:38 AM, Jakub Kicinski wrote:
> On Tue,  7 Nov 2023 11:56:16 +0800 D. Wythe wrote:
>> This issue requires an immediate solution, since the protocol updates
>> involve a more long-term solution.
> Please provide an appropriate Fixes tag.

Thanks for reminder.

D. Wythe

^ permalink raw reply

* [PATCH net v1] net/smc: avoid data corruption caused by decline
From: D. Wythe @ 2023-11-08  9:48 UTC (permalink / raw)
  To: kgraul, wenjia, jaka, wintera; +Cc: kuba, davem, netdev, linux-s390, linux-rdma

From: "D. Wythe" <alibuda@linux.alibaba.com>

We found a data corruption issue during testing of SMC-R on Redis
applications.

The benchmark has a low probability of reporting a strange error as
shown below.

"Error: Protocol error, got "\xe2" as reply type byte"

Finally, we found that the retrieved error data was as follows:

0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C
0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2

It is quite obvious that this is a SMC DECLINE message, which means that
the applications received SMC protocol message.
We found that this was caused by the following situations:

client			server
	   proposal
	------------->
	   accept
	<-------------
	   confirm
	------------->
wait confirm

	 failed llc confirm
	    x------
(after 2s)timeout
			wait rsp

wait decline

(after 1s) timeout
			(after 2s) timeout
	    decline
	-------------->
	    decline
	<--------------

As a result, a decline message was sent in the implementation, and this
message was read from TCP by the already-fallback connection.

This patch double the client timeout as 2x of the server value,
With this simple change, the Decline messages should never cross or
collide (during Confirm link timeout).

This issue requires an immediate solution, since the protocol updates
involve a more long-term solution.

Fixes: 0fb0b02bd6fd ("net/smc: adapt SMC client code to use the LLC flow")
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
---
 net/smc/af_smc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index abd2667..5b91f55 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -599,7 +599,7 @@ static int smcr_clnt_conf_first_link(struct smc_sock *smc)
 	int rc;
 
 	/* receive CONFIRM LINK request from server over RoCE fabric */
-	qentry = smc_llc_wait(link->lgr, NULL, SMC_LLC_WAIT_TIME,
+	qentry = smc_llc_wait(link->lgr, NULL, 2 * SMC_LLC_WAIT_TIME,
 			      SMC_LLC_CONFIRM_LINK);
 	if (!qentry) {
 		struct smc_clc_msg_decline dclc;
-- 
1.8.3.1


^ permalink raw reply related

* Re: [PATCH v2] drivers/net/ppp: use standard array-copy-function
From: patchwork-bot+netdevbpf @ 2023-11-08  9:50 UTC (permalink / raw)
  To: Philipp Stanner
  Cc: davem, edumazet, kuba, pabeni, sdf, gregkh, benjamin.tissoires,
	viro, linux-ppp, netdev, linux-kernel, airlied
In-Reply-To: <20231106091559.14419-2-pstanner@redhat.com>

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@davemloft.net>:

On Mon,  6 Nov 2023 10:16:00 +0100 you wrote:
> In ppp_generic.c, memdup_user() is utilized to copy a userspace array.
> This is done without an overflow-check, which is, however, not critical
> because the multiplicands are an unsigned short and struct sock_filter,
> which is currently of size 8.
> 
> Regardless, string.h now provides memdup_array_user(), a wrapper for
> copying userspace arrays in a standardized manner, which has the
> advantage of making it more obvious to the reader that an array is being
> copied.
> The wrapper additionally performs an obligatory overflow check, saving
> the reader the effort of analyzing the potential for overflow, and
> making the code a bit more robust in case of future changes to the
> multiplicands len * size.
> 
> [...]

Here is the summary with links:
  - [v2] drivers/net/ppp: use standard array-copy-function
    https://git.kernel.org/netdev/net/c/caf3100810f4

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



^ permalink raw reply

* Re: [PATCH RESEND] ptp: Fixes a null pointer dereference in ptp_ioctl
From: Przemek Kitszel @ 2023-11-08 10:15 UTC (permalink / raw)
  To: Yuran Pereira, richardcochran, netdev
  Cc: eadavis, davem, reibax, linux-kernel, linux-kernel-mentees,
	syzbot+8a78ecea7ac1a2ea26e5
In-Reply-To: <DB3PR10MB6835D68E7E632532155AE585E8A9A@DB3PR10MB6835.EURPRD10.PROD.OUTLOOK.COM>

On 11/7/23 21:48, Yuran Pereira wrote:
> Syzkaller found a null pointer dereference in ptp_ioctl
> originating from the lack of a null check for tsevq.
> 
> ```
> general protection fault, probably for non-canonical
> 	address 0xdffffc000000020b: 0000 [#1] PREEMPT SMP KASAN
> KASAN: probably user-memory-access in range
> 	[0x0000000000001058-0x000000000000105f]
> CPU: 0 PID: 5053 Comm: syz-executor353 Not tainted
> 	6.6.0-syzkaller-10396-g4652b8e4f3ff #0
> Hardware name: Google Google Compute Engine/Google Compute Engine,
> 	BIOS Google 10/09/2023
> RIP: 0010:ptp_ioctl+0xcb7/0x1d10 drivers/ptp/ptp_chardev.c:476
> ...
> Call Trace:
>   <TASK>
>   posix_clock_ioctl+0xf8/0x160 kernel/time/posix-clock.c:86
>   vfs_ioctl fs/ioctl.c:51 [inline]
>   __do_sys_ioctl fs/ioctl.c:871 [inline]
>   __se_sys_ioctl fs/ioctl.c:857 [inline]
>   __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
>   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
>   do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
>   entry_SYSCALL_64_after_hwframe+0x63/0x6b
> ```
> 
> This patch fixes the issue by adding a check for tsevq and
> ensuring ptp_ioctl returns with an error if tsevq is null.
> 
> Reported-by: syzbot+8a78ecea7ac1a2ea26e5@syzkaller.appspotmail.com
> Closes: https://syzkaller.appspot.com/bug?extid=8a78ecea7ac1a2ea26e5
> Fixes: c5a445b1e934 ("ptp: support event queue reader channel masks")
> Signed-off-by: Yuran Pereira <yuran.pereira@hotmail.com>
> ---
>   drivers/ptp/ptp_chardev.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
> index 282cd7d24077..5b36c34629a0 100644
> --- a/drivers/ptp/ptp_chardev.c
> +++ b/drivers/ptp/ptp_chardev.c
> @@ -173,6 +173,8 @@ long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd,
>   	int enable, err = 0;
>   
>   	tsevq = pccontext->private_clkdata;
> +	if (!tsevq)
> +		return -EINVAL;
>   
>   	switch (cmd) {
>   

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>


^ permalink raw reply

* Re: [PATCH RESEND] ptp: Fixes a null pointer dereference in ptp_ioctl
From: Przemek Kitszel @ 2023-11-08 10:26 UTC (permalink / raw)
  To: Yuran Pereira, richardcochran, netdev
  Cc: eadavis, davem, reibax, linux-kernel, linux-kernel-mentees,
	syzbot+8a78ecea7ac1a2ea26e5
In-Reply-To: <70911c92-4272-cff6-857e-c95842b644c8@intel.com>

On 11/8/23 11:15, Przemek Kitszel wrote:
> On 11/7/23 21:48, Yuran Pereira wrote:
>> Syzkaller found a null pointer dereference in ptp_ioctl

Ugh, I just noticed that this is a fixed version of previous attempt,
for those please always bump version and include changelog, please
also comply with:
https://www.kernel.org/doc/html/next/process/maintainer-netdev.html

if only to don't fool random reviewers
(I somewhat assumed that you have just rebased some old patch,
PATCH RESEND was misleading here)

>> originating from the lack of a null check for tsevq.
>>
>> ```
>> general protection fault, probably for non-canonical
>>     address 0xdffffc000000020b: 0000 [#1] PREEMPT SMP KASAN
>> KASAN: probably user-memory-access in range
>>     [0x0000000000001058-0x000000000000105f]
>> CPU: 0 PID: 5053 Comm: syz-executor353 Not tainted
>>     6.6.0-syzkaller-10396-g4652b8e4f3ff #0
>> Hardware name: Google Google Compute Engine/Google Compute Engine,
>>     BIOS Google 10/09/2023
>> RIP: 0010:ptp_ioctl+0xcb7/0x1d10 drivers/ptp/ptp_chardev.c:476
>> ...
>> Call Trace:
>>   <TASK>
>>   posix_clock_ioctl+0xf8/0x160 kernel/time/posix-clock.c:86
>>   vfs_ioctl fs/ioctl.c:51 [inline]
>>   __do_sys_ioctl fs/ioctl.c:871 [inline]
>>   __se_sys_ioctl fs/ioctl.c:857 [inline]
>>   __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
>>   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
>>   do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
>>   entry_SYSCALL_64_after_hwframe+0x63/0x6b
>> ```
>>
>> This patch fixes the issue by adding a check for tsevq and
>> ensuring ptp_ioctl returns with an error if tsevq is null.
>>
>> Reported-by: syzbot+8a78ecea7ac1a2ea26e5@syzkaller.appspotmail.com
>> Closes: https://syzkaller.appspot.com/bug?extid=8a78ecea7ac1a2ea26e5
>> Fixes: c5a445b1e934 ("ptp: support event queue reader channel masks")
>> Signed-off-by: Yuran Pereira <yuran.pereira@hotmail.com>
>> ---
>>   drivers/ptp/ptp_chardev.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
>> index 282cd7d24077..5b36c34629a0 100644
>> --- a/drivers/ptp/ptp_chardev.c
>> +++ b/drivers/ptp/ptp_chardev.c
>> @@ -173,6 +173,8 @@ long ptp_ioctl(struct posix_clock_context 
>> *pccontext, unsigned int cmd,
>>       int enable, err = 0;
>>       tsevq = pccontext->private_clkdata;
>> +    if (!tsevq)
>> +        return -EINVAL;
>>       switch (cmd) {
> 
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> 

Still applies, code is fine, thanks!

^ permalink raw reply

* [PATCH net 0/3] dpll: fix unordered unbind/bind registerer issues
From: Arkadiusz Kubalewski @ 2023-11-08 10:32 UTC (permalink / raw)
  To: netdev
  Cc: vadim.fedorenko, jiri, michal.michalik, milena.olech, pabeni,
	kuba, Arkadiusz Kubalewski

Fix issues when performing unordered unbind/bind of a kernel modules
which are using a dpll device with DPLL_PIN_TYPE_MUX pins.
Currently only serialized bind/unbind of such use case works, fix
the issues and allow for unserialized kernel module bind order.

The issues are observed on the ice driver, i.e.,

$ echo 0000:af:00.0 > /sys/bus/pci/drivers/ice/unbind
$ echo 0000:af:00.1 > /sys/bus/pci/drivers/ice/unbind

results in:

ice 0000:af:00.0: Removed PTP clock
BUG: kernel NULL pointer dereference, address: 0000000000000010
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 7 PID: 71848 Comm: bash Kdump: loaded Not tainted 6.6.0-rc5_next-queue_19th-Oct-2023-01625-g039e5d15e451 #1
Hardware name: Intel Corporation S2600STB/S2600STB, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019
RIP: 0010:ice_dpll_rclk_state_on_pin_get+0x2f/0x90 [ice]
Code: 41 57 4d 89 cf 41 56 41 55 4d 89 c5 41 54 55 48 89 f5 53 4c 8b 66 08 48 89 cb 4d 8d b4 24 f0 49 00 00 4c 89 f7 e8 71 ec 1f c5 <0f> b6 5b 10 41 0f b6 84 24 30 4b 00 00 29 c3 41 0f b6 84 24 28 4b
RSP: 0018:ffffc902b179fb60 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8882c1398000 RSI: ffff888c7435cc60 RDI: ffff888c7435cb90
RBP: ffff888c7435cc60 R08: ffffc902b179fbb0 R09: 0000000000000000
R10: ffff888ef1fc8050 R11: fffffffffff82700 R12: ffff888c743581a0
R13: ffffc902b179fbb0 R14: ffff888c7435cb90 R15: 0000000000000000
FS:  00007fdc7dae0740(0000) GS:ffff888c105c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 0000000132c24002 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die+0x20/0x70
 ? page_fault_oops+0x76/0x170
 ? exc_page_fault+0x65/0x150
 ? asm_exc_page_fault+0x22/0x30
 ? ice_dpll_rclk_state_on_pin_get+0x2f/0x90 [ice]
 ? __pfx_ice_dpll_rclk_state_on_pin_get+0x10/0x10 [ice]
 dpll_msg_add_pin_parents+0x142/0x1d0
 dpll_pin_event_send+0x7d/0x150
 dpll_pin_on_pin_unregister+0x3f/0x100
 ice_dpll_deinit_pins+0xa1/0x230 [ice]
 ice_dpll_deinit+0x29/0xe0 [ice]
 ice_remove+0xcd/0x200 [ice]
 pci_device_remove+0x33/0xa0
 device_release_driver_internal+0x193/0x200
 unbind_store+0x9d/0xb0
 kernfs_fop_write_iter+0x128/0x1c0
 vfs_write+0x2bb/0x3e0
 ksys_write+0x5f/0xe0
 do_syscall_64+0x59/0x90
 ? filp_close+0x1b/0x30
 ? do_dup2+0x7d/0xd0
 ? syscall_exit_work+0x103/0x130
 ? syscall_exit_to_user_mode+0x22/0x40
 ? do_syscall_64+0x69/0x90
 ? syscall_exit_work+0x103/0x130
 ? syscall_exit_to_user_mode+0x22/0x40
 ? do_syscall_64+0x69/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fdc7d93eb97
Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007fff2aa91028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007fdc7d93eb97
RDX: 000000000000000d RSI: 00005644814ec9b0 RDI: 0000000000000001
RBP: 00005644814ec9b0 R08: 0000000000000000 R09: 00007fdc7d9b14e0
R10: 00007fdc7d9b13e0 R11: 0000000000000246 R12: 000000000000000d
R13: 00007fdc7d9fb780 R14: 000000000000000d R15: 00007fdc7d9f69e0
 </TASK>
Modules linked in: uinput vfio_pci vfio_pci_core vfio_iommu_type1 vfio irqbypass ixgbevf snd_seq_dummy snd_hrtimer snd_seq snd_timer snd_seq_device snd soundcore overlay qrtr rfkill vfat fat xfs libcrc32c rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common isst_if_common skx_edac nfit libnvdimm ipmi_ssif x86_pkg_temp_thermal intel_powerclamp coretemp irdma rapl intel_cstate ib_uverbs iTCO_wdt iTCO_vendor_support acpi_ipmi intel_uncore mei_me ipmi_si pcspkr i2c_i801 ib_core mei ipmi_devintf intel_pch_thermal ioatdma i2c_smbus ipmi_msghandler lpc_ich joydev acpi_power_meter acpi_pad ext4 mbcache jbd2 sd_mod t10_pi sg ast i2c_algo_bit drm_shmem_helper drm_kms_helper ice crct10dif_pclmul ixgbe crc32_pclmul drm crc32c_intel ahci i40e libahci ghash_clmulni_intel libata mdio dca gnss wmi fuse [last unloaded: iavf]
CR2: 0000000000000010

Arkadiusz Kubalewski (3):
  dpll: fix pin dump crash after module unbind
  dpll: fix pin dump crash for rebound module
  dpll: fix register pin with unregistered parent pin

 drivers/dpll/dpll_core.c    |  8 ++------
 drivers/dpll/dpll_core.h    |  4 ++--
 drivers/dpll/dpll_netlink.c | 37 ++++++++++++++++++++++---------------
 3 files changed, 26 insertions(+), 23 deletions(-)

-- 
2.38.1


^ permalink raw reply

* [PATCH net 1/3] dpll: fix pin dump crash after module unbind
From: Arkadiusz Kubalewski @ 2023-11-08 10:32 UTC (permalink / raw)
  To: netdev
  Cc: vadim.fedorenko, jiri, michal.michalik, milena.olech, pabeni,
	kuba, Arkadiusz Kubalewski
In-Reply-To: <20231108103226.1168500-1-arkadiusz.kubalewski@intel.com>

Disallow dump of unregistered parent pins, it is possible when parent
pin and dpll device registerer kernel module instance unbinds, and
other kernel module instances of the same dpll device have pins
registered with the parent pin. The user can invoke a pin-dump but as
the parent was unregistered, thus shall not be accessed by the
userspace, prevent that by checking if parent pin is still registered.

Fixes: 9d71b54b65b1 ("dpll: netlink: Add DPLL framework base functions")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
---
 drivers/dpll/dpll_netlink.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/dpll/dpll_netlink.c b/drivers/dpll/dpll_netlink.c
index a6dc3997bf5c..93fc6c4b8a78 100644
--- a/drivers/dpll/dpll_netlink.c
+++ b/drivers/dpll/dpll_netlink.c
@@ -328,6 +328,13 @@ dpll_msg_add_pin_parents(struct sk_buff *msg, struct dpll_pin *pin,
 		void *parent_priv;
 
 		ppin = ref->pin;
+		/*
+		 * dump parent only if it is registered, thus prevent crash on
+		 * pin dump called when driver which registered the pin unbinds
+		 * and different instance registered pin on that parent pin
+		 */
+		if (!xa_get_mark(&dpll_pin_xa, ppin->id, DPLL_REGISTERED))
+			continue;
 		parent_priv = dpll_pin_on_dpll_priv(dpll_ref->dpll, ppin);
 		ret = ops->state_on_pin_get(pin,
 					    dpll_pin_on_pin_priv(ppin, pin),
-- 
2.38.1


^ permalink raw reply related

* [PATCH net 2/3] dpll: fix pin dump crash for rebound module
From: Arkadiusz Kubalewski @ 2023-11-08 10:32 UTC (permalink / raw)
  To: netdev
  Cc: vadim.fedorenko, jiri, michal.michalik, milena.olech, pabeni,
	kuba, Arkadiusz Kubalewski
In-Reply-To: <20231108103226.1168500-1-arkadiusz.kubalewski@intel.com>

When a kernel module is unbound but the pin resources were not entirely
freed (other kernel module instance have had kept the reference to that
pin), and kernel module is again bound, the pin properties would not be
updated (the properties are only assigned when memory for the pin is
allocated), prop pointer still points to the kernel module memory of
the kernel module which was deallocated on the unbind.

If the pin dump is invoked in this state, the result is a kernel crash.
Prevent the crash by storing persistent pin properties in dpll subsystem,
copy the content from the kernel module when pin is allocated, instead of
using memory of the kernel module.

Fixes: 9431063ad323 ("dpll: core: Add DPLL framework base functions")
Fixes: 9d71b54b65b1 ("dpll: netlink: Add DPLL framework base functions")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
---
 drivers/dpll/dpll_core.c    |  4 ++--
 drivers/dpll/dpll_core.h    |  4 ++--
 drivers/dpll/dpll_netlink.c | 28 ++++++++++++++--------------
 3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/dpll/dpll_core.c b/drivers/dpll/dpll_core.c
index 3568149b9562..4077b562ba3b 100644
--- a/drivers/dpll/dpll_core.c
+++ b/drivers/dpll/dpll_core.c
@@ -442,7 +442,7 @@ dpll_pin_alloc(u64 clock_id, u32 pin_idx, struct module *module,
 		ret = -EINVAL;
 		goto err;
 	}
-	pin->prop = prop;
+	memcpy(&pin->prop, prop, sizeof(pin->prop));
 	refcount_set(&pin->refcount, 1);
 	xa_init_flags(&pin->dpll_refs, XA_FLAGS_ALLOC);
 	xa_init_flags(&pin->parent_refs, XA_FLAGS_ALLOC);
@@ -634,7 +634,7 @@ int dpll_pin_on_pin_register(struct dpll_pin *parent, struct dpll_pin *pin,
 	unsigned long i, stop;
 	int ret;
 
-	if (WARN_ON(parent->prop->type != DPLL_PIN_TYPE_MUX))
+	if (WARN_ON(parent->prop.type != DPLL_PIN_TYPE_MUX))
 		return -EINVAL;
 
 	if (WARN_ON(!ops) ||
diff --git a/drivers/dpll/dpll_core.h b/drivers/dpll/dpll_core.h
index 5585873c5c1b..717f715015c7 100644
--- a/drivers/dpll/dpll_core.h
+++ b/drivers/dpll/dpll_core.h
@@ -44,7 +44,7 @@ struct dpll_device {
  * @module:		module of creator
  * @dpll_refs:		hold referencees to dplls pin was registered with
  * @parent_refs:	hold references to parent pins pin was registered with
- * @prop:		pointer to pin properties given by registerer
+ * @prop:		pin properties copied from the registerer
  * @rclk_dev_name:	holds name of device when pin can recover clock from it
  * @refcount:		refcount
  **/
@@ -55,7 +55,7 @@ struct dpll_pin {
 	struct module *module;
 	struct xarray dpll_refs;
 	struct xarray parent_refs;
-	const struct dpll_pin_properties *prop;
+	struct dpll_pin_properties prop;
 	refcount_t refcount;
 };
 
diff --git a/drivers/dpll/dpll_netlink.c b/drivers/dpll/dpll_netlink.c
index 93fc6c4b8a78..963bbbbe6660 100644
--- a/drivers/dpll/dpll_netlink.c
+++ b/drivers/dpll/dpll_netlink.c
@@ -278,17 +278,17 @@ dpll_msg_add_pin_freq(struct sk_buff *msg, struct dpll_pin *pin,
 	if (nla_put_64bit(msg, DPLL_A_PIN_FREQUENCY, sizeof(freq), &freq,
 			  DPLL_A_PIN_PAD))
 		return -EMSGSIZE;
-	for (fs = 0; fs < pin->prop->freq_supported_num; fs++) {
+	for (fs = 0; fs < pin->prop.freq_supported_num; fs++) {
 		nest = nla_nest_start(msg, DPLL_A_PIN_FREQUENCY_SUPPORTED);
 		if (!nest)
 			return -EMSGSIZE;
-		freq = pin->prop->freq_supported[fs].min;
+		freq = pin->prop.freq_supported[fs].min;
 		if (nla_put_64bit(msg, DPLL_A_PIN_FREQUENCY_MIN, sizeof(freq),
 				  &freq, DPLL_A_PIN_PAD)) {
 			nla_nest_cancel(msg, nest);
 			return -EMSGSIZE;
 		}
-		freq = pin->prop->freq_supported[fs].max;
+		freq = pin->prop.freq_supported[fs].max;
 		if (nla_put_64bit(msg, DPLL_A_PIN_FREQUENCY_MAX, sizeof(freq),
 				  &freq, DPLL_A_PIN_PAD)) {
 			nla_nest_cancel(msg, nest);
@@ -304,9 +304,9 @@ static bool dpll_pin_is_freq_supported(struct dpll_pin *pin, u32 freq)
 {
 	int fs;
 
-	for (fs = 0; fs < pin->prop->freq_supported_num; fs++)
-		if (freq >= pin->prop->freq_supported[fs].min &&
-		    freq <= pin->prop->freq_supported[fs].max)
+	for (fs = 0; fs < pin->prop.freq_supported_num; fs++)
+		if (freq >= pin->prop.freq_supported[fs].min &&
+		    freq <= pin->prop.freq_supported[fs].max)
 			return true;
 	return false;
 }
@@ -403,7 +403,7 @@ static int
 dpll_cmd_pin_get_one(struct sk_buff *msg, struct dpll_pin *pin,
 		     struct netlink_ext_ack *extack)
 {
-	const struct dpll_pin_properties *prop = pin->prop;
+	const struct dpll_pin_properties *prop = &pin->prop;
 	struct dpll_pin_ref *ref;
 	int ret;
 
@@ -696,7 +696,7 @@ dpll_pin_on_pin_state_set(struct dpll_pin *pin, u32 parent_idx,
 	int ret;
 
 	if (!(DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE &
-	      pin->prop->capabilities)) {
+	      pin->prop.capabilities)) {
 		NL_SET_ERR_MSG(extack, "state changing is not allowed");
 		return -EOPNOTSUPP;
 	}
@@ -732,7 +732,7 @@ dpll_pin_state_set(struct dpll_device *dpll, struct dpll_pin *pin,
 	int ret;
 
 	if (!(DPLL_PIN_CAPABILITIES_STATE_CAN_CHANGE &
-	      pin->prop->capabilities)) {
+	      pin->prop.capabilities)) {
 		NL_SET_ERR_MSG(extack, "state changing is not allowed");
 		return -EOPNOTSUPP;
 	}
@@ -759,7 +759,7 @@ dpll_pin_prio_set(struct dpll_device *dpll, struct dpll_pin *pin,
 	int ret;
 
 	if (!(DPLL_PIN_CAPABILITIES_PRIORITY_CAN_CHANGE &
-	      pin->prop->capabilities)) {
+	      pin->prop.capabilities)) {
 		NL_SET_ERR_MSG(extack, "prio changing is not allowed");
 		return -EOPNOTSUPP;
 	}
@@ -787,7 +787,7 @@ dpll_pin_direction_set(struct dpll_pin *pin, struct dpll_device *dpll,
 	int ret;
 
 	if (!(DPLL_PIN_CAPABILITIES_DIRECTION_CAN_CHANGE &
-	      pin->prop->capabilities)) {
+	      pin->prop.capabilities)) {
 		NL_SET_ERR_MSG(extack, "direction changing is not allowed");
 		return -EOPNOTSUPP;
 	}
@@ -817,8 +817,8 @@ dpll_pin_phase_adj_set(struct dpll_pin *pin, struct nlattr *phase_adj_attr,
 	int ret;
 
 	phase_adj = nla_get_s32(phase_adj_attr);
-	if (phase_adj > pin->prop->phase_range.max ||
-	    phase_adj < pin->prop->phase_range.min) {
+	if (phase_adj > pin->prop.phase_range.max ||
+	    phase_adj < pin->prop.phase_range.min) {
 		NL_SET_ERR_MSG_ATTR(extack, phase_adj_attr,
 				    "phase adjust value not supported");
 		return -EINVAL;
@@ -999,7 +999,7 @@ dpll_pin_find(u64 clock_id, struct nlattr *mod_name_attr,
 	unsigned long i;
 
 	xa_for_each_marked(&dpll_pin_xa, i, pin, DPLL_REGISTERED) {
-		prop = pin->prop;
+		prop = &pin->prop;
 		cid_match = clock_id ? pin->clock_id == clock_id : true;
 		mod_match = mod_name_attr && module_name(pin->module) ?
 			!nla_strcmp(mod_name_attr,
-- 
2.38.1


^ permalink raw reply related

* [PATCH net 3/3] dpll: fix register pin with unregistered parent pin
From: Arkadiusz Kubalewski @ 2023-11-08 10:32 UTC (permalink / raw)
  To: netdev
  Cc: vadim.fedorenko, jiri, michal.michalik, milena.olech, pabeni,
	kuba, Arkadiusz Kubalewski
In-Reply-To: <20231108103226.1168500-1-arkadiusz.kubalewski@intel.com>

In case of multiple kernel module instances using the same dpll device:
if only one registers dpll device, then only that one can register
directly connected pins with a dpll device. If unregistered parent
determines if the muxed pin can be register with it or not, it forces
serialized driver load order - first the driver instance which registers
the direct pins needs to be loaded, then the other instances could
register muxed type pins.

Allow registration of a pin with a parent even if the parent was not
yet registered, thus allow ability for unserialized driver instance
load order.
Do not WARN_ON notification for unregistered pin, which can be invoked
for described case, instead just return error.

Fixes: 9431063ad323 ("dpll: core: Add DPLL framework base functions")
Fixes: 9d71b54b65b1 ("dpll: netlink: Add DPLL framework base functions")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
---
 drivers/dpll/dpll_core.c    | 4 ----
 drivers/dpll/dpll_netlink.c | 2 +-
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/dpll/dpll_core.c b/drivers/dpll/dpll_core.c
index 4077b562ba3b..ae884b92d68c 100644
--- a/drivers/dpll/dpll_core.c
+++ b/drivers/dpll/dpll_core.c
@@ -28,8 +28,6 @@ static u32 dpll_xa_id;
 	WARN_ON_ONCE(!xa_get_mark(&dpll_device_xa, (d)->id, DPLL_REGISTERED))
 #define ASSERT_DPLL_NOT_REGISTERED(d)	\
 	WARN_ON_ONCE(xa_get_mark(&dpll_device_xa, (d)->id, DPLL_REGISTERED))
-#define ASSERT_PIN_REGISTERED(p)	\
-	WARN_ON_ONCE(!xa_get_mark(&dpll_pin_xa, (p)->id, DPLL_REGISTERED))
 
 struct dpll_device_registration {
 	struct list_head list;
@@ -641,8 +639,6 @@ int dpll_pin_on_pin_register(struct dpll_pin *parent, struct dpll_pin *pin,
 	    WARN_ON(!ops->state_on_pin_get) ||
 	    WARN_ON(!ops->direction_get))
 		return -EINVAL;
-	if (ASSERT_PIN_REGISTERED(parent))
-		return -EINVAL;
 
 	mutex_lock(&dpll_lock);
 	ret = dpll_xa_ref_pin_add(&pin->parent_refs, parent, ops, priv);
diff --git a/drivers/dpll/dpll_netlink.c b/drivers/dpll/dpll_netlink.c
index 963bbbbe6660..ff430f43304f 100644
--- a/drivers/dpll/dpll_netlink.c
+++ b/drivers/dpll/dpll_netlink.c
@@ -558,7 +558,7 @@ dpll_pin_event_send(enum dpll_cmd event, struct dpll_pin *pin)
 	int ret = -ENOMEM;
 	void *hdr;
 
-	if (WARN_ON(!xa_get_mark(&dpll_pin_xa, pin->id, DPLL_REGISTERED)))
+	if (!xa_get_mark(&dpll_pin_xa, pin->id, DPLL_REGISTERED))
 		return -ENODEV;
 
 	msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
-- 
2.38.1


^ permalink raw reply related

* Re: [PATCH net-next v8 5/7] net: phy: nxp-c45-tja11xx: add MACsec support
From: Radu Pirea (OSS) @ 2023-11-08 10:45 UTC (permalink / raw)
  To: Simon Horman
  Cc: sd, davem, edumazet, kuba, pabeni, andrew, hkallweit1, linux,
	richardcochran, linux-kernel, netdev, sebastian.tobuschat
In-Reply-To: <20231104113506.GA891380@kernel.org>

On 04.11.2023 13:35, Simon Horman wrote:
> On Mon, Oct 23, 2023 at 12:43:25PM +0300, Radu Pirea (NXP OSS) wrote:
>> +void nxp_c45_handle_macsec_interrupt(struct phy_device *phydev,
>> +				     irqreturn_t *ret)
>> +{
>> +	struct nxp_c45_phy *priv = phydev->priv;
>> +	struct nxp_c45_secy *pos, *tmp;
>> +	struct nxp_c45_sa *sa;
>> +	u8 encoding_sa;
>> +	int secy_id;
>> +	u32 reg = 0;
>> +
>> +	if (!priv->macsec)
>> +		return;
>> +
>> +	do {
>> +		nxp_c45_macsec_read(phydev, MACSEC_EVR, &reg);
>> +		if (!reg)
>> +			return;
>> +
>> +		secy_id = MACSEC_REG_SIZE - ffs(reg);
>> +		list_for_each_entry_safe(pos, tmp, &priv->macsec->secy_list,
>> +					 list)
>> +			if (pos->secy_id == secy_id)
>> +				break;
>> +
>> +		encoding_sa = pos->secy->tx_sc.encoding_sa;
> 
> Hi Radu,
> 
> I'm unsure if this can happen, but my understanding is that if
> priv->macsec->secy_list is empty then pos will be uninitialised here.
> 
> Flagged by Coccinelle.
> 

True, this this should never happen. No MACsec interrupt should be 
triggered if that list is empty. The IRQ for PN wrap is enabled only 
when a secy is added and disabled when the secy is removed. I added a 
safety check anyway.

-- 
Radu P.

^ permalink raw reply

* Re: [PATCH net-next v7 1/5] rust: core abstractions for network PHY drivers
From: FUJITA Tomonori @ 2023-11-08 10:46 UTC (permalink / raw)
  To: benno.lossin
  Cc: fujita.tomonori, boqun.feng, andrew, netdev, rust-for-linux,
	tmgross, miguel.ojeda.sandonis, wedsonaf
In-Reply-To: <1e6bd47b-7252-48f8-a19b-c5a60455bf7b@proton.me>

On Mon, 30 Oct 2023 16:45:38 +0000
Benno Lossin <benno.lossin@proton.me> wrote:

>>> But I would wait until we see a response from the bindgen devs on the issue.
>> 
>> You meant that they might have a different option on this?
> 
> No, before you implement the workaround that Boqun posted you
> should wait until the bindgen devs say how long/if they will
> implement it.

It has been 10 days but no response from bindgen developpers. I guess
that unlikely bindgen will support the feature until the next merge
window.

I prefer adding accessors in the C side rather than the workaround if
it's fine by Andrew because we have no idea when bindgen will support
the feature.

^ permalink raw reply

* Re: [RFC PATCH v3 07/12] page-pool: device memory support
From: Yunsheng Lin @ 2023-11-08 10:56 UTC (permalink / raw)
  To: Mina Almasry
  Cc: netdev, linux-kernel, linux-arch, linux-kselftest, linux-media,
	dri-devel, linaro-mm-sig, David S. Miller, Eric Dumazet,
	Jakub Kicinski, Paolo Abeni, Jesper Dangaard Brouer,
	Ilias Apalodimas, Arnd Bergmann, David Ahern, Willem de Bruijn,
	Shuah Khan, Sumit Semwal, Christian König, Shakeel Butt,
	Jeroen de Borst, Praveen Kaligineedi
In-Reply-To: <CAHS8izNbw7vAGo2euQGA+TF9CgQ8zwrDqTVGsOSxh22_uo0R1w@mail.gmail.com>

On 2023/11/8 5:56, Mina Almasry wrote:
> On Tue, Nov 7, 2023 at 12:00 AM Yunsheng Lin <linyunsheng@huawei.com> wrote:
>>
>> On 2023/11/6 10:44, Mina Almasry wrote:
>>> Overload the LSB of struct page* to indicate that it's a page_pool_iov.
>>>
>>> Refactor mm calls on struct page* into helpers, and add page_pool_iov
>>> handling on those helpers. Modify callers of these mm APIs with calls to
>>> these helpers instead.
>>>
>>> In areas where struct page* is dereferenced, add a check for special
>>> handling of page_pool_iov.
>>>
>>> Signed-off-by: Mina Almasry <almasrymina@google.com>
>>>
>>> ---
>>>  include/net/page_pool/helpers.h | 74 ++++++++++++++++++++++++++++++++-
>>>  net/core/page_pool.c            | 63 ++++++++++++++++++++--------
>>>  2 files changed, 118 insertions(+), 19 deletions(-)
>>>
>>> diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
>>> index b93243c2a640..08f1a2cc70d2 100644
>>> --- a/include/net/page_pool/helpers.h
>>> +++ b/include/net/page_pool/helpers.h
>>> @@ -151,6 +151,64 @@ static inline struct page_pool_iov *page_to_page_pool_iov(struct page *page)
>>>       return NULL;
>>>  }
>>>
>>> +static inline int page_pool_page_ref_count(struct page *page)
>>> +{
>>> +     if (page_is_page_pool_iov(page))
>>> +             return page_pool_iov_refcount(page_to_page_pool_iov(page));
>>
>> We have added a lot of 'if' for the devmem case, it would be better to
>> make it more generic so that we can have more unified metadata handling
>> for normal page and devmem. If we add another memory type here, do we
>> need another 'if' here?
> 
> Maybe, not sure. I'm guessing new memory types will either be pages or
> iovs, so maybe no new if statements needed.
> 
>> That is part of the reason I suggested using a more unified metadata for
>> all the types of memory chunks used by page_pool.
> 
> I think your suggestion was to use struct pages for devmem. That was
> thoroughly considered and intensely argued about in the initial
> conversations regarding devmem and the initial RFC, and from the
> conclusions there it's extremely clear to me that devmem struct pages
> are categorically a no-go.

Not exactly, I was wondering if adding a more abstract structure specificly
for page pool makes any sense, and each mem type can add its own specific
fields, net stack only see and handle the common fields so that it does not
care about specific mem type, and each provider only see the and handle the
specific fields belonging to it most of the time.

Ideally something like beleow:

struct netmem {
	/* common fields */
	refcount_t refcount;
	struct page_pool *pp;
	......

	union {
		struct devmem{
			struct dmabuf_genpool_chunk_owner *owner;
		};

		struct other_mem{
			...
			...
		};
	};
};

But untill we completely decouple the 'struct page' from the net stack,
the above seems undoable in the near term.
But we might be able to do something as folio is doing now, mm subsystem
is still seeing 'struct folio/page', but other subsystem like slab is using
'struct slab', and there is still some common fields shared between
'struct folio' and 'struct slab'.

As the netmem patchset, is devmem able to reuse the below 'struct netmem'
and rename it to 'struct page_pool_iov'? So that 'struct page' for normal
memory and 'struct page_pool_iov' for devmem share the common fields used
by page pool and net stack? And we might be able to reuse the 'flags',
'_pp_mapping_pad' and '_mapcount' for specific mem provider, which is enough
for the devmem only requiring a single pointer to point to it's
owner?

https://lkml.kernel.org/netdev/20230105214631.3939268-2-willy@infradead.org/

+/**
+ * struct netmem - A memory allocation from a &struct page_pool.
+ * @flags: The same as the page flags.  Do not use directly.
+ * @pp_magic: Magic value to avoid recycling non page_pool allocated pages.
+ * @pp: The page pool this netmem was allocated from.
+ * @dma_addr: Call netmem_get_dma_addr() to read this value.
+ * @dma_addr_upper: Might need to be 64-bit on 32-bit architectures.
+ * @pp_frag_count: For frag page support, not supported in 32-bit
+ *   architectures with 64-bit DMA.
+ * @_mapcount: Do not access this member directly.
+ * @_refcount: Do not access this member directly.  Read it using
+ *   netmem_ref_count() and manipulate it with netmem_get() and netmem_put().
+ *
+ * This struct overlays struct page for now.  Do not modify without a
+ * good understanding of the issues.
+ */
+struct netmem {
+	unsigned long flags;
+	unsigned long pp_magic;
+	struct page_pool *pp;
+	/* private: no need to document this padding */
+	unsigned long _pp_mapping_pad;	/* aliases with folio->mapping */
+	/* public: */
+	unsigned long dma_addr;
+	union {
+		unsigned long dma_addr_upper;
+		atomic_long_t pp_frag_count;
+	};
+	atomic_t _mapcount;
+	atomic_t _refcount;
+};

If we do that, it seems we might be able to allow net stack and page pool to see
the metadata for devmem chunk as 'struct page', and may be able to aovid most of
the 'if' checking in net stack and page pool?

> 
> --
> Thanks,
> Mina
> 
> .
> 

^ permalink raw reply

* [PATCHv2] selftests: bpf: xskxceiver: ksft_print_msg: fix format type error
From: Anders Roxell @ 2023-11-08 11:00 UTC (permalink / raw)
  To: bjorn, magnus.karlsson, maciej.fijalkowski, andrii.nakryiko
  Cc: netdev, bpf, linux-kernel, Anders Roxell

Crossbuilding selftests/bpf for architecture arm64, format specifies
type error show up like.

xskxceiver.c:912:34: error: format specifies type 'int' but the argument
has type '__u64' (aka 'unsigned long long') [-Werror,-Wformat]
 ksft_print_msg("[%s] expected meta_count [%d], got meta_count [%d]\n",
                                                                ~~
                                                                %llu
                __func__, pkt->pkt_nb, meta->count);
                                       ^~~~~~~~~~~
xskxceiver.c:929:55: error: format specifies type 'unsigned long long' but
 the argument has type 'u64' (aka 'unsigned long') [-Werror,-Wformat]
 ksft_print_msg("Frag invalid addr: %llx len: %u\n", addr, len);
                                    ~~~~             ^~~~

Fixing the issues by casting to (unsigned long long) and changing the
specifiers to be %llx, since with u64s it might be %llx or %lx,
depending on architecture.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 tools/testing/selftests/bpf/xskxceiver.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index 591ca9637b23..1ab9512f5aa2 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -908,8 +908,9 @@ static bool is_metadata_correct(struct pkt *pkt, void *buffer, u64 addr)
 	struct xdp_info *meta = data - sizeof(struct xdp_info);
 
 	if (meta->count != pkt->pkt_nb) {
-		ksft_print_msg("[%s] expected meta_count [%d], got meta_count [%d]\n",
-			       __func__, pkt->pkt_nb, meta->count);
+		ksft_print_msg("[%s] expected meta_count [%d], got meta_count [%llx]\n",
+			       __func__, pkt->pkt_nb,
+			       (unsigned long long)meta->count);
 		return false;
 	}
 
@@ -926,11 +927,13 @@ static bool is_frag_valid(struct xsk_umem_info *umem, u64 addr, u32 len, u32 exp
 
 	if (addr >= umem->num_frames * umem->frame_size ||
 	    addr + len > umem->num_frames * umem->frame_size) {
-		ksft_print_msg("Frag invalid addr: %llx len: %u\n", addr, len);
+		ksft_print_msg("Frag invalid addr: %llx len: %u\n",
+			       (unsigned long long)addr, len);
 		return false;
 	}
 	if (!umem->unaligned_mode && addr % umem->frame_size + len > umem->frame_size) {
-		ksft_print_msg("Frag crosses frame boundary addr: %llx len: %u\n", addr, len);
+		ksft_print_msg("Frag crosses frame boundary addr: %llx len: %u\n",
+			       (unsigned long long)addr, len);
 		return false;
 	}
 
@@ -1029,7 +1032,8 @@ static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
 			u64 addr = *xsk_ring_cons__comp_addr(&xsk->umem->cq, idx + rcvd - 1);
 
 			ksft_print_msg("[%s] Too many packets completed\n", __func__);
-			ksft_print_msg("Last completion address: %llx\n", addr);
+			ksft_print_msg("Last completion address: %llx\n",
+				       (unsigned long long)addr);
 			return TEST_FAILURE;
 		}
 
@@ -1513,8 +1517,9 @@ static int validate_tx_invalid_descs(struct ifobject *ifobject)
 	}
 
 	if (stats.tx_invalid_descs != ifobject->xsk->pkt_stream->nb_pkts / 2) {
-		ksft_print_msg("[%s] tx_invalid_descs incorrect. Got [%u] expected [%u]\n",
-			       __func__, stats.tx_invalid_descs,
+		ksft_print_msg("[%s] tx_invalid_descs incorrect. Got [%llx] expected [%u]\n",
+			       __func__,
+			       (unsigned long long)stats.tx_invalid_descs,
 			       ifobject->xsk->pkt_stream->nb_pkts);
 		return TEST_FAILURE;
 	}
-- 
2.42.0


^ permalink raw reply related

* Re: [PATCH v9 2/2] can: esd: add support for esd GmbH PCIe/402 CAN interface family
From: Vincent MAILHOL @ 2023-11-08 11:00 UTC (permalink / raw)
  To: Stefan Mätje
  Cc: Marc Kleine-Budde, linux-can, netdev, linux-kernel,
	Wolfgang Grandegger, David S . Miller, Eric Dumazet,
	Jakub Kicinski, Paolo Abeni
In-Reply-To: <20231107184103.2802678-3-stefan.maetje@esd.eu>

Hi,

I do not know much about PCI, so no thorough review of that part. Here
is a set of small fixes or nitpicks. The driver starts to look good.
If things go right, expect to receive my reviewed-by tag in the next
iteration.

On Wed. 8 Nov. 2023 at 08:30, Stefan Mätje <stefan.maetje@esd.eu> wrote:
> This patch adds support for the PCI based PCIe/402 CAN interface family
> from esd GmbH that is available with various form factors
> (https://esd.eu/en/products/402-series-can-interfaces).
>
> All boards utilize a FPGA based CAN controller solution developed
> by esd (esdACC). For more information on the esdACC see
> https://esd.eu/en/products/esdacc.
>
> This driver detects all available CAN interface board variants of
> the family but atm. operates the CAN-FD capable devices in
> Classic-CAN mode only! A later patch will introduce the CAN-FD
> functionality in this driver.

The driver already introduces pieces of code for CAN-FD, for example
struct can_bittiming_const pci402_bittiming_const_canfd. Would it make
sense to remove those for now and send them altogether in the
follow-up patch which will add CAN-FD?

> Co-developed-by: Thomas Körper <thomas.koerper@esd.eu>
> Signed-off-by: Thomas Körper <thomas.koerper@esd.eu>
> Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
> ---
>  drivers/net/can/Kconfig                |   1 +
>  drivers/net/can/Makefile               |   1 +
>  drivers/net/can/esd/Kconfig            |  12 +
>  drivers/net/can/esd/Makefile           |   7 +
>  drivers/net/can/esd/esd_402_pci-core.c | 512 ++++++++++++++++
>  drivers/net/can/esd/esdacc.c           | 771 +++++++++++++++++++++++++
>  drivers/net/can/esd/esdacc.h           | 393 +++++++++++++
>  7 files changed, 1697 insertions(+)
>  create mode 100644 drivers/net/can/esd/Kconfig
>  create mode 100644 drivers/net/can/esd/Makefile
>  create mode 100644 drivers/net/can/esd/esd_402_pci-core.c
>  create mode 100644 drivers/net/can/esd/esdacc.c
>  create mode 100644 drivers/net/can/esd/esdacc.h
>
> diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
> index 649453a3c858..b9a65b44ccef 100644
> --- a/drivers/net/can/Kconfig
> +++ b/drivers/net/can/Kconfig
> @@ -217,6 +217,7 @@ config CAN_XILINXCAN
>  source "drivers/net/can/c_can/Kconfig"
>  source "drivers/net/can/cc770/Kconfig"
>  source "drivers/net/can/ctucanfd/Kconfig"
> +source "drivers/net/can/esd/Kconfig"
>  source "drivers/net/can/ifi_canfd/Kconfig"
>  source "drivers/net/can/m_can/Kconfig"
>  source "drivers/net/can/mscan/Kconfig"
> diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile
> index ff8f76295d13..4669cd51e7bf 100644
> --- a/drivers/net/can/Makefile
> +++ b/drivers/net/can/Makefile
> @@ -8,6 +8,7 @@ obj-$(CONFIG_CAN_VXCAN)         += vxcan.o
>  obj-$(CONFIG_CAN_SLCAN)                += slcan/
>
>  obj-y                          += dev/
> +obj-y                          += esd/
>  obj-y                          += rcar/
>  obj-y                          += spi/
>  obj-y                          += usb/
> diff --git a/drivers/net/can/esd/Kconfig b/drivers/net/can/esd/Kconfig
> new file mode 100644
> index 000000000000..54bfc366634c
> --- /dev/null
> +++ b/drivers/net/can/esd/Kconfig
> @@ -0,0 +1,12 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +config CAN_ESD_402_PCI
> +       tristate "esd electronics gmbh CAN-PCI(e)/402 family"
> +       depends on PCI && HAS_DMA
> +       help
> +         Support for C402 card family from esd electronics gmbh.
> +         This card family is based on the ESDACC CAN controller and
> +         available in several form factors:  PCI, PCIe, PCIe Mini,
> +         M.2 PCIe, CPCIserial, PMC, XMC  (see https://esd.eu/en)
> +
> +         This driver can also be built as a module. In this case the
> +         module will be called esd_402_pci.
> diff --git a/drivers/net/can/esd/Makefile b/drivers/net/can/esd/Makefile
> new file mode 100644
> index 000000000000..5dd2d470c286
> --- /dev/null
> +++ b/drivers/net/can/esd/Makefile
> @@ -0,0 +1,7 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +#
> +#  Makefile for esd gmbh ESDACC controller driver
> +#
> +esd_402_pci-objs := esdacc.o esd_402_pci-core.o
> +
> +obj-$(CONFIG_CAN_ESD_402_PCI) += esd_402_pci.o
> diff --git a/drivers/net/can/esd/esd_402_pci-core.c b/drivers/net/can/esd/esd_402_pci-core.c
> new file mode 100644
> index 000000000000..5793d41c17c2
> --- /dev/null
> +++ b/drivers/net/can/esd/esd_402_pci-core.c
> @@ -0,0 +1,512 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/* Copyright (C) 2015 - 2016 Thomas Körper, esd electronic system design gmbh
> + * Copyright (C) 2017 - 2022 Stefan Mätje, esd electronics gmbh
> + */
> +
> +#include <linux/can/dev.h>
> +#include <linux/can.h>
> +#include <linux/can/netlink.h>
> +#include <linux/delay.h>
> +#include <linux/dma-mapping.h>
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/netdevice.h>
> +#include <linux/pci.h>
> +
> +#include "esdacc.h"
> +
> +#define ESD_PCI_DEVICE_ID_PCIE402 0x0402
> +
> +#define PCI402_FPGA_VER_MIN 0x003d
> +#define PCI402_MAX_CORES 6
> +#define PCI402_BAR 0
> +#define PCI402_IO_OV_OFFS 0
> +#define PCI402_IO_PCIEP_OFFS 0x10000
> +#define PCI402_IO_LEN_TOTAL 0x20000
> +#define PCI402_IO_LEN_CORE 0x2000
> +#define PCI402_PCICFG_MSICAP 0x50
> +
> +#define PCI402_DMA_MASK DMA_BIT_MASK(32)
> +#define PCI402_DMA_SIZE ALIGN(0x10000, PAGE_SIZE)
> +
> +#define PCI402_PCIEP_OF_INT_ENABLE 0x0050
> +#define PCI402_PCIEP_OF_BM_ADDR_LO 0x1000
> +#define PCI402_PCIEP_OF_BM_ADDR_HI 0x1004
> +#define PCI402_PCIEP_OF_MSI_ADDR_LO 0x1008
> +#define PCI402_PCIEP_OF_MSI_ADDR_HI 0x100c
> +
> +/* The BTR register capabilities described by the can_bittiming_const structures
> + * below are valid since ESDACC version 0x0032.
> + */
> +
> +/* Used if the ESDACC FPGA is built as CAN-Classic version. */
> +static const struct can_bittiming_const pci402_bittiming_const = {
> +       .name = "esd_402",
> +       .tseg1_min = 1,
> +       .tseg1_max = 16,
> +       .tseg2_min = 1,
> +       .tseg2_max = 8,
> +       .sjw_max = 4,
> +       .brp_min = 1,
> +       .brp_max = 512,
> +       .brp_inc = 1,
> +};
> +
> +/* Used if the ESDACC FPGA is built as CAN-FD version. */
> +static const struct can_bittiming_const pci402_bittiming_const_canfd = {
> +       .name = "esd_402fd",
> +       .tseg1_min = 1,
> +       .tseg1_max = 256,
> +       .tseg2_min = 1,
> +       .tseg2_max = 128,
> +       .sjw_max = 128,
> +       .brp_min = 1,
> +       .brp_max = 256,
> +       .brp_inc = 1,
> +};
> +
> +static const struct net_device_ops pci402_acc_netdev_ops = {
> +       .ndo_open = acc_open,
> +       .ndo_stop = acc_close,can_
> +       .ndo_start_xmit = acc_start_xmit,
> +       .ndo_change_mtu = can_change_mtu
                                        ^
Generic comment: add a comma after the last entry to have a cleaner
diff if members get added later on.

Please also populate net_device_ops.ndo_eth_ioctl() and
netdev->ethtool_ops for the hardware timestamp support. Use below
commit as a reference:

  https://git.kernel.org/torvalds/c/1d46efa0008a

> +};
> +
> +struct pci402_card {
> +       /* Actually mapped io space, all other iomem derived from this */
> +       void __iomem *addr;
> +       void __iomem *addr_pciep;
> +
> +       void *dma_buf;
> +       dma_addr_t dma_hnd;
> +
> +       struct acc_ov ov;
> +       struct acc_core *cores;
> +
> +       bool msi_enabled;
> +};
> +
> +static irqreturn_t pci402_interrupt(int irq, void *dev_id)
> +{
> +       struct pci_dev *pdev = dev_id;
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       irqreturn_t irq_status;
> +
> +       irq_status = acc_card_interrupt(&card->ov, card->cores);
> +
> +       return irq_status;
> +}
> +
> +static int pci402_set_msiconfig(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       u32 addr_lo_offs = 0;
> +       u32 addr_lo = 0;
> +       u32 addr_hi = 0;
> +       u32 data = 0;
> +       u16 csr = 0;
> +       int err;
> +
> +       /* The FPGA hard IP PCIe core implements a 64-bit MSI Capability
> +        * Register Format
> +        */
> +       err = pci_read_config_word(pdev, PCI402_PCICFG_MSICAP + PCI_MSI_FLAGS, &csr);
> +       if (err)
> +               goto failed;
> +
> +       err = pci_read_config_dword(pdev, PCI402_PCICFG_MSICAP + PCI_MSI_ADDRESS_LO,
> +                                   &addr_lo);
> +       if (err)
> +               goto failed;
> +       err = pci_read_config_dword(pdev, PCI402_PCICFG_MSICAP + PCI_MSI_ADDRESS_HI,
> +                                   &addr_hi);
> +       if (err)
> +               goto failed;
> +
> +       err = pci_read_config_dword(pdev, PCI402_PCICFG_MSICAP + PCI_MSI_DATA_64,
> +                                   &data);
> +       if (err)
> +               goto failed;
> +
> +       addr_lo_offs = addr_lo & 0x0000ffff;
> +       addr_lo &= 0xffff0000;
> +
> +       if (addr_hi)
> +               addr_lo |= 1; /* To enable 64-Bit addressing in PCIe endpoint */
> +
> +       if (!(csr & PCI_MSI_FLAGS_ENABLE)) {
> +               err = -EINVAL;
> +               goto failed;
> +       }
> +
> +       iowrite32(addr_lo, card->addr_pciep + PCI402_PCIEP_OF_MSI_ADDR_LO);
> +       iowrite32(addr_hi, card->addr_pciep + PCI402_PCIEP_OF_MSI_ADDR_HI);
> +       acc_ov_write32(&card->ov, ACC_OV_OF_MSI_ADDRESSOFFSET, addr_lo_offs);
> +       acc_ov_write32(&card->ov, ACC_OV_OF_MSI_DATA, data);
> +
> +       return 0;
> +
> +failed:
> +       pci_warn(pdev, "Error while setting MSI configuration:\n"
> +                "CSR: 0x%.4x, addr: 0x%.8x%.8x, offs: 0x%.4x, data: 0x%.8x\n",
> +                csr, addr_hi, addr_lo, addr_lo_offs, data);
> +
> +       return err;
> +}
> +
> +static int pci402_init_card(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +
> +       card->ov.addr = card->addr + PCI402_IO_OV_OFFS;
> +       card->addr_pciep = card->addr + PCI402_IO_PCIEP_OFFS;
> +
> +       acc_reset_fpga(&card->ov);
> +       acc_init_ov(&card->ov, &pdev->dev);
> +
> +       if (card->ov.version < PCI402_FPGA_VER_MIN) {
> +               pci_err(pdev,
> +                       "ESDACC version (0x%.4x) outdated, please update\n",
> +                       card->ov.version);
> +               return -EINVAL;
> +       }
> +
> +       if (card->ov.timestamp_frequency != ACC_TS_FREQ_80MHZ) {
> +               pci_err(pdev,
> +                       "esdACC timestamp frequency of %uHz not supported by driver. Aborted.\n",
> +                       card->ov.timestamp_frequency);
> +               return -EINVAL;
> +       }
> +
> +       if (card->ov.active_cores > PCI402_MAX_CORES) {
> +               pci_err(pdev,
> +                       "Card has more active cores (%u) than supported by driver. Aborted.\n",
                                                    ^^^^

From the Linux coding style:

  Printing numbers in parentheses (%d) adds no value and should be avoided.

Ref: https://www.kernel.org/doc/html/v4.10/process/coding-style.html#printing-kernel-messages

> +                       card->ov.active_cores);
> +               return -EINVAL;
> +       }
> +       card->cores = devm_kcalloc(&pdev->dev, card->ov.active_cores,
> +                                  sizeof(struct acc_core), GFP_KERNEL);
> +       if (!card->cores)
> +               return -ENOMEM;
> +
> +       if (card->ov.features & ACC_OV_REG_FEAT_MASK_CANFD) {
> +               pci_warn(pdev,
> +                        "ESDACC with CAN-FD feature detected. This driver doesn't support CAN-FD yet.\n");
> +       }
> +
> +#ifdef __LITTLE_ENDIAN
> +       /* So card converts all busmastered data to LE for us: */
> +       acc_ov_set_bits(&card->ov, ACC_OV_OF_MODE,
> +                       ACC_OV_REG_MODE_MASK_ENDIAN_LITTLE);
> +#endif
> +
> +       return 0;
> +}
> +
> +static int pci402_init_interrupt(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       int err;
> +
> +       err = pci_enable_msi(pdev);
> +       if (!err) {
> +               err = pci402_set_msiconfig(pdev);
> +               if (!err) {
> +                       card->msi_enabled = true;
> +                       acc_ov_set_bits(&card->ov, ACC_OV_OF_MODE,
> +                                       ACC_OV_REG_MODE_MASK_MSI_ENABLE);
> +                       pci_info(pdev, "MSI enabled\n");

Consider using dev_dbg() instead of dev_info() here.

> +               }
> +       }
> +
> +       err = devm_request_irq(&pdev->dev, pdev->irq, pci402_interrupt,
> +                              IRQF_SHARED, dev_name(&pdev->dev), pdev);
> +       if (err)
> +               goto failure_msidis;
> +
> +       iowrite32(1, card->addr_pciep + PCI402_PCIEP_OF_INT_ENABLE);
> +
> +       return 0;
> +
> +failure_msidis:
> +       if (card->msi_enabled) {
> +               acc_ov_clear_bits(&card->ov, ACC_OV_OF_MODE,
> +                                 ACC_OV_REG_MODE_MASK_MSI_ENABLE);
> +               pci_disable_msi(pdev);
> +               card->msi_enabled = false;
> +       }
> +
> +       return err;
> +}
> +
> +static void pci402_finish_interrupt(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +
> +       iowrite32(0, card->addr_pciep + PCI402_PCIEP_OF_INT_ENABLE);
> +       devm_free_irq(&pdev->dev, pdev->irq, pdev);
> +
> +       if (card->msi_enabled) {
> +               acc_ov_clear_bits(&card->ov, ACC_OV_OF_MODE,
> +                                 ACC_OV_REG_MODE_MASK_MSI_ENABLE);
> +               pci_disable_msi(pdev);
> +               card->msi_enabled = false;
> +       }
> +}
> +
> +static int pci402_init_dma(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       int err;
> +
> +       err = dma_set_coherent_mask(&pdev->dev, PCI402_DMA_MASK);
> +       if (err) {
> +               pci_err(pdev, "DMA set mask failed!\n");
> +               return err;
> +       }
> +
> +       /* The ESDACC DMA engine needs the DMA buffer aligned to a 64k
> +        * boundary. The DMA API guarantees to align the returned buffer to the
> +        * smallest PAGE_SIZE order which is greater than or equal to the
> +        * requested size. With PCI402_DMA_SIZE == 64kB this suffices here.
> +        */
> +       card->dma_buf = dma_alloc_coherent(&pdev->dev, PCI402_DMA_SIZE,
> +                                          &card->dma_hnd, GFP_KERNEL);
> +       if (!card->dma_buf)
> +               return -ENOMEM;
> +
> +       acc_init_bm_ptr(&card->ov, card->cores, card->dma_buf);
> +
> +       iowrite32(card->dma_hnd,
> +                 card->addr_pciep + PCI402_PCIEP_OF_BM_ADDR_LO);
> +       iowrite32(0, card->addr_pciep + PCI402_PCIEP_OF_BM_ADDR_HI);
> +
> +       pci_set_master(pdev);
> +
> +       acc_ov_set_bits(&card->ov, ACC_OV_OF_MODE,
> +                       ACC_OV_REG_MODE_MASK_BM_ENABLE);
> +
> +       return 0;
> +}
> +
> +static void pci402_finish_dma(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       int i;
> +
> +       acc_ov_clear_bits(&card->ov, ACC_OV_OF_MODE,
> +                         ACC_OV_REG_MODE_MASK_BM_ENABLE);
> +
> +       pci_clear_master(pdev);
> +
> +       iowrite32(0, card->addr_pciep + PCI402_PCIEP_OF_BM_ADDR_LO);
> +       iowrite32(0, card->addr_pciep + PCI402_PCIEP_OF_BM_ADDR_HI);
> +
> +       card->ov.bmfifo.messages = NULL;
> +       card->ov.bmfifo.irq_cnt = NULL;
> +       for (i = 0; i < card->ov.active_cores; i++) {
> +               struct acc_core *core = &card->cores[i];
> +
> +               core->bmfifo.messages = NULL;
> +               core->bmfifo.irq_cnt = NULL;
> +       }
> +
> +       dma_free_coherent(&pdev->dev, PCI402_DMA_SIZE, card->dma_buf,
> +                         card->dma_hnd);
> +       card->dma_buf = NULL;
> +}
> +
> +static int pci402_init_cores(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       int err;
> +       int i;
> +
> +       for (i = 0; i < card->ov.active_cores; i++) {
> +               struct acc_core *core = &card->cores[i];
> +               struct acc_net_priv *priv;
> +               struct net_device *netdev;
> +               u32 fifo_config;
> +
> +               core->addr = card->ov.addr + (i + 1) * PCI402_IO_LEN_CORE;
> +
> +               fifo_config = acc_read32(core, ACC_CORE_OF_TXFIFO_CONFIG);
> +               core->tx_fifo_size = (fifo_config >> 24);
> +               if (core->tx_fifo_size <= 1) {
> +                       pci_err(pdev, "Invalid tx_fifo_size!\n");
> +                       err = -EINVAL;
> +                       goto failure;
> +               }
> +
> +               netdev = alloc_candev(sizeof(*priv), core->tx_fifo_size);
> +               if (!netdev) {
> +                       err = -ENOMEM;
> +                       goto failure;
> +               }
> +               core->netdev = netdev;
> +
> +               netdev->flags |= IFF_ECHO;
> +               netdev->dev_port = i;
> +               netdev->netdev_ops = &pci402_acc_netdev_ops;
> +               SET_NETDEV_DEV(netdev, &pdev->dev);
> +
> +               priv = netdev_priv(netdev);
> +               priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK |
> +                       CAN_CTRLMODE_LISTENONLY |
> +                       CAN_CTRLMODE_BERR_REPORTING |
> +                       CAN_CTRLMODE_CC_LEN8_DLC;
> +
> +               priv->can.clock.freq = card->ov.core_frequency;
> +               if (card->ov.features & ACC_OV_REG_FEAT_MASK_CANFD)
> +                       priv->can.bittiming_const = &pci402_bittiming_const_canfd;
> +               else
> +                       priv->can.bittiming_const = &pci402_bittiming_const;
> +               priv->can.do_set_bittiming = acc_set_bittiming;
> +               priv->can.do_set_mode = acc_set_mode;
> +               priv->can.do_get_berr_counter = acc_get_berr_counter;
> +
> +               priv->core = core;
> +               priv->ov = &card->ov;
> +
> +               err = register_candev(netdev);
> +               if (err) {
> +                       free_candev(core->netdev);
> +                       core->netdev = NULL;
> +                       goto failure;
> +               }
> +
> +               netdev_info(netdev, "registered\n");

Isn't this already reported by the core? Please check and if
redundant, remove (same comment for the unregister below).

> +       }
> +
> +       return 0;
> +
> +failure:
> +       for (i--; i >= 0; i--) {
> +               struct acc_core *core = &card->cores[i];
> +
> +               netdev_info(core->netdev, "unregistering...\n");
> +               unregister_candev(core->netdev);
> +
> +               free_candev(core->netdev);
> +               core->netdev = NULL;
> +       }

Nitpick: this cleanup loop has the same content as the loop in
pci402_finish_cores(). Might be worth factorizing the code in an
helper function that would free a single core.

> +
> +       return err;
> +}
> +
> +static void pci402_finish_cores(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +       int i;
> +
> +       for (i = 0; i < card->ov.active_cores; i++) {
> +               struct acc_core *core = &card->cores[i];
> +
> +               netdev_info(core->netdev, "unregister\n");
> +               unregister_candev(core->netdev);
> +
> +               free_candev(core->netdev);
> +               core->netdev = NULL;
> +       }
> +}
> +
> +static int pci402_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> +{
> +       struct pci402_card *card = NULL;
> +       int err;
> +
> +       err = pci_enable_device(pdev);
> +       if (err)
> +               return err;
> +
> +       card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
> +       if (!card) {
> +               err = -ENOMEM;
> +               goto failure_disable_pci;
> +       }
> +
> +       pci_set_drvdata(pdev, card);
> +
> +       err = pci_request_regions(pdev, pci_name(pdev));
> +       if (err)
> +               goto failure_disable_pci;
> +
> +       card->addr = pci_iomap(pdev, PCI402_BAR, PCI402_IO_LEN_TOTAL);
> +       if (!card->addr) {
> +               err = -ENOMEM;
> +               goto failure_release_regions;
> +       }
> +
> +       err = pci402_init_card(pdev);
> +       if (err)
> +               goto failure_unmap;
> +
> +       err = pci402_init_dma(pdev);
> +       if (err)
> +               goto failure_unmap;
> +
> +       err = pci402_init_interrupt(pdev);
> +       if (err)
> +               goto failure_finish_dma;
> +
> +       err = pci402_init_cores(pdev);
> +       if (err)
> +               goto failure_finish_interrupt;
> +
> +       return 0;
> +
> +failure_finish_interrupt:
> +       pci402_finish_interrupt(pdev);
> +
> +failure_finish_dma:
> +       pci402_finish_dma(pdev);
> +
> +failure_unmap:
> +       pci_iounmap(pdev, card->addr);
> +
> +failure_release_regions:
> +       pci_release_regions(pdev);
> +
> +failure_disable_pci:
> +       pci_disable_device(pdev);
> +
> +       return err;
> +}
> +
> +static void pci402_remove(struct pci_dev *pdev)
> +{
> +       struct pci402_card *card = pci_get_drvdata(pdev);
> +
> +       pci402_finish_interrupt(pdev);
> +       pci402_finish_cores(pdev);
> +       pci402_finish_dma(pdev);
> +       pci_iounmap(pdev, card->addr);
> +       pci_release_regions(pdev);
> +       pci_disable_device(pdev);
> +}
> +
> +static const struct pci_device_id pci402_tbl[] = {
> +       {
> +               .vendor = PCI_VENDOR_ID_ESDGMBH,
> +               .device = ESD_PCI_DEVICE_ID_PCIE402,
> +               .subvendor = PCI_VENDOR_ID_ESDGMBH,
> +               .subdevice = PCI_ANY_ID,
> +       },
> +       { 0, }
> +};
> +MODULE_DEVICE_TABLE(pci, pci402_tbl);
> +
> +static struct pci_driver pci402_driver = {
> +       .name = KBUILD_MODNAME,
> +       .id_table = pci402_tbl,
> +       .probe = pci402_probe,
> +       .remove = pci402_remove,
> +};
> +module_pci_driver(pci402_driver);
> +
> +MODULE_DESCRIPTION("Socket-CAN driver for esd CAN 402 card family with esdACC core on PCIe");
> +MODULE_AUTHOR("Thomas Körper <socketcan@esd.eu>");
> +MODULE_AUTHOR("Stefan Mätje <stefan.maetje@esd.eu>");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/net/can/esd/esdacc.c b/drivers/net/can/esd/esdacc.c
> new file mode 100644
> index 000000000000..49017c986c70
> --- /dev/null
> +++ b/drivers/net/can/esd/esdacc.c
> @@ -0,0 +1,771 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/* Copyright (C) 2015 - 2016 Thomas Körper, esd electronic system design gmbh
> + * Copyright (C) 2017 - 2022 Stefan Mätje, esd electronics gmbh
                        ^^^^
2023? (Same comment for other files)

> + */
> +
> +#include "esdacc.h"
> +
> +#include <linux/bitfield.h>
> +#include <linux/delay.h>
> +#include <linux/io.h>
> +#include <linux/ktime.h>
> +
> +/* ecc value of esdACC equals SJA1000's ECC register */
> +#define ACC_ECC_SEG                    0x1f
> +#define ACC_ECC_DIR                    0x20
> +#define ACC_ECC_BIT                    0x00
> +#define ACC_ECC_FORM                   0x40
> +#define ACC_ECC_STUFF                  0x80
> +#define ACC_ECC_MASK                   0xc0
> +
> +#define ACC_BM_IRQ_UNMASK_ALL          0x55555555U
> +#define ACC_BM_IRQ_MASK_ALL            0xaaaaaaaaU
> +#define ACC_BM_IRQ_MASK                        0x2U
> +#define ACC_BM_IRQ_UNMASK              0x1U
> +#define ACC_BM_LENFLAG_TX              0x20
> +
> +#define ACC_REG_STATUS_IDX_STATUS_DOS  16
> +#define ACC_REG_STATUS_IDX_STATUS_ES   17
> +#define ACC_REG_STATUS_IDX_STATUS_EP   18
> +#define ACC_REG_STATUS_IDX_STATUS_BS   19
> +#define ACC_REG_STATUS_IDX_STATUS_RBS  20
> +#define ACC_REG_STATUS_IDX_STATUS_RS   21
> +#define ACC_REG_STATUS_MASK_STATUS_DOS BIT(ACC_REG_STATUS_IDX_STATUS_DOS)
> +#define ACC_REG_STATUS_MASK_STATUS_ES  BIT(ACC_REG_STATUS_IDX_STATUS_ES)
> +#define ACC_REG_STATUS_MASK_STATUS_EP  BIT(ACC_REG_STATUS_IDX_STATUS_EP)
> +#define ACC_REG_STATUS_MASK_STATUS_BS  BIT(ACC_REG_STATUS_IDX_STATUS_BS)
> +#define ACC_REG_STATUS_MASK_STATUS_RBS BIT(ACC_REG_STATUS_IDX_STATUS_RBS)
> +#define ACC_REG_STATUS_MASK_STATUS_RS  BIT(ACC_REG_STATUS_IDX_STATUS_RS)

Many of these macros are not used:

  ./include/linux/ctype.h:43:19: warning: declaration of ‘isdigit’
shadows a built-in function [-Wshadow]
     43 | static inline int isdigit(int c)
        |                   ^~~~~~~
  drivers/net/can/esd/esdacc.c:24: warning: macro "ACC_BM_IRQ_UNMASK"
is not used [-Wunused-macros]
     24 | #define ACC_BM_IRQ_UNMASK  0x1U
        |
  drivers/net/can/esd/esdacc.c:27: warning: macro
"ACC_REG_STATUS_IDX_STATUS_DOS" is not used [-Wunused-macros]
     27 | #define ACC_REG_STATUS_IDX_STATUS_DOS 16
        |
  drivers/net/can/esd/esdacc.c:37: warning: macro
"ACC_REG_STATUS_MASK_STATUS_RBS" is not used [-Wunused-macros]
     37 | #define ACC_REG_STATUS_MASK_STATUS_RBS
BIT(ACC_REG_STATUS_IDX_STATUS_RBS)
        |
  drivers/net/can/esd/esdacc.c:38: warning: macro
"ACC_REG_STATUS_MASK_STATUS_RS" is not used [-Wunused-macros]
     38 | #define ACC_REG_STATUS_MASK_STATUS_RS
BIT(ACC_REG_STATUS_IDX_STATUS_RS)
        |
  drivers/net/can/esd/esdacc.c:32: warning: macro
"ACC_REG_STATUS_IDX_STATUS_RS" is not used [-Wunused-macros]
     32 | #define ACC_REG_STATUS_IDX_STATUS_RS 21
        |
  drivers/net/can/esd/esdacc.c:31: warning: macro
"ACC_REG_STATUS_IDX_STATUS_RBS" is not used [-Wunused-macros]
     31 | #define ACC_REG_STATUS_IDX_STATUS_RBS 20
        |
  drivers/net/can/esd/esdacc.c:33: warning: macro
"ACC_REG_STATUS_MASK_STATUS_DOS" is not used [-Wunused-macros]
     33 | #define ACC_REG_STATUS_MASK_STATUS_DOS
BIT(ACC_REG_STATUS_IDX_STATUS_DOS)
        |
  drivers/net/can/esd/esdacc.c:22: warning: macro
"ACC_BM_IRQ_MASK_ALL" is not used [-Wunused-macros]
     22 | #define ACC_BM_IRQ_MASK_ALL  0xaaaaaaaaU

> +static void acc_resetmode_enter(struct acc_core *core)
> +{
> +       acc_set_bits(core, ACC_CORE_OF_CTRL_MODE,
> +                    ACC_REG_CONTROL_MASK_MODE_RESETMODE);
> +
> +       /* Read back reset mode bit to flush PCI write posting */
> +       acc_resetmode_entered(core);
> +}
> +
> +static void acc_resetmode_leave(struct acc_core *core)
> +{
> +       acc_clear_bits(core, ACC_CORE_OF_CTRL_MODE,
> +                      ACC_REG_CONTROL_MASK_MODE_RESETMODE);
> +
> +       /* Read back reset mode bit to flush PCI write posting */
> +       acc_resetmode_entered(core);
> +}
> +
> +static void acc_txq_put(struct acc_core *core, u32 acc_id, u8 acc_dlc,
> +                       const void *data)
> +{
> +       acc_write32_noswap(core, ACC_CORE_OF_TXFIFO_DATA_1,
> +                          *((const u32 *)(data + 4)));
> +       acc_write32_noswap(core, ACC_CORE_OF_TXFIFO_DATA_0,
> +                          *((const u32 *)data));
> +       acc_write32(core, ACC_CORE_OF_TXFIFO_DLC, acc_dlc);
> +       /* CAN id must be written at last. This write starts TX. */
> +       acc_write32(core, ACC_CORE_OF_TXFIFO_ID, acc_id);
> +}
> +
> +/* Convert timestamp from esdACC time stamp ticks to ns
> + *
> + * The conversion factor ts2ns from time stamp counts to ns is basically
> + *     ts2ns = NSEC_PER_SEC / timestamp_frequency
> + *
> + * We handle here only a fixed timestamp frequency of 80MHz. The
> + * resulting ts2ns factor would be 12.5.
> + *
> + * At the end we multiply by 12 and add the half of the HW timestamp
> + * to get a multiplication by 12.5. This way any overflow is
> + * avoided until ktime_t itself overflows.
> + */
> +#define ACC_TS_FACTOR (NSEC_PER_SEC / ACC_TS_FREQ_80MHZ)
> +#define ACC_TS_80MHZ_SHIFT 1
> +
> +static ktime_t acc_ts2ktime(struct acc_ov *ov, u64 ts)
> +{
> +       u64 ns;
> +
> +       ns = (ts * ACC_TS_FACTOR) + (ts >> ACC_TS_80MHZ_SHIFT);
> +
> +       return ns_to_ktime(ns);
> +}
> +
> +void acc_init_ov(struct acc_ov *ov, struct device *dev)
> +{
> +       u32 temp;
> +
> +       temp = acc_ov_read32(ov, ACC_OV_OF_VERSION);
> +       ov->version = temp;
> +       ov->features = (temp >> 16);
> +
> +       temp = acc_ov_read32(ov, ACC_OV_OF_INFO);
> +       ov->total_cores = temp;
> +       ov->active_cores = (temp >> 8);
> +
> +       ov->core_frequency = acc_ov_read32(ov, ACC_OV_OF_CANCORE_FREQ);
> +       ov->timestamp_frequency = acc_ov_read32(ov, ACC_OV_OF_TS_FREQ_LO);
> +
> +       /* Depending on ESDACC feature NEW_PSC enable the new prescaler
> +        * or adjust core_frequency according to the implicit division by 2.
> +        */
> +       if (ov->features & ACC_OV_REG_FEAT_MASK_NEW_PSC) {
> +               acc_ov_set_bits(ov, ACC_OV_OF_MODE,
> +                               ACC_OV_REG_MODE_MASK_NEW_PSC_ENABLE);
> +       } else {
> +               ov->core_frequency /= 2;
> +       }
> +
> +       dev_info(dev,
> +                "ESDACC v%u, freq: %u/%u, feat/strap: 0x%x/0x%x, cores: %u/%u\n",
> +                ov->version, ov->core_frequency, ov->timestamp_frequency,
> +                ov->features, acc_ov_read32(ov, ACC_OV_OF_INFO) >> 16,
> +                ov->active_cores, ov->total_cores);

Consider using dev_dbg() instead of dev_info() here.

> +}
> +
> +void acc_init_bm_ptr(struct acc_ov *ov, struct acc_core *cores, const void *mem)
> +{
> +       unsigned int u;
> +
> +       /* DMA buffer layout as follows where N is the number of CAN cores
> +        * implemented in the FPGA, i.e. N = ov->total_cores
> +        *
> +        *   Layout                   Section size
> +        * +-----------------------+
> +        * | FIFO Card/Overview    |  ACC_CORE_DMABUF_SIZE
> +        * |                       |
> +        * +-----------------------+
> +        * | FIFO Core0            |  ACC_CORE_DMABUF_SIZE
> +        * |                       |
> +        * +-----------------------+
> +        * | ...                   |  ...
> +        * |                       |
> +        * +-----------------------+
> +        * | FIFO CoreN            |  ACC_CORE_DMABUF_SIZE
> +        * |                       |
> +        * +-----------------------+
> +        * | irq_cnt Card/Overview |  sizeof(u32)
> +        * +-----------------------+
> +        * | irq_cnt Core0         |  sizeof(u32)
> +        * +-----------------------+
> +        * | ...                   |  ...
> +        * +-----------------------+
> +        * | irq_cnt CoreN         |  sizeof(u32)
> +        * +-----------------------+

Nitpick, instead of drawing all the cells in ascii art, please prefer
a more frugal style.
Example:

 Layout                 Section size
---------------------------------------------
 FIFO Card/Overview     ACC_CORE_DMABUF_SIZE
 FIFO Core0             ACC_CORE_DMABUF_SIZE
 ...                    ...

> +        */
> +       ov->bmfifo.messages = mem;
> +       ov->bmfifo.irq_cnt = mem + (ov->total_cores + 1U) * ACC_CORE_DMABUF_SIZE;
> +
> +       for (u = 0U; u < ov->active_cores; u++) {
> +               struct acc_core *core = &cores[u];
> +
> +               core->bmfifo.messages = mem + (u + 1U) * ACC_CORE_DMABUF_SIZE;
> +               core->bmfifo.irq_cnt = ov->bmfifo.irq_cnt + (u + 1U);
> +       }
> +}
> +
> +int acc_open(struct net_device *netdev)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +       struct acc_core *core = priv->core;
> +       u32 tx_fifo_status;
> +       u32 ctrl_mode;
> +       int err;
> +
> +       /* Retry to enter RESET mode if out of sync. */
> +       if (priv->can.state != CAN_STATE_STOPPED) {
> +               netdev_warn(netdev, "Entered %s() with bad can.state: %s\n",
> +                           __func__, can_get_state_str(priv->can.state));
> +               acc_resetmode_enter(core);
> +               priv->can.state = CAN_STATE_STOPPED;
> +       }
> +
> +       err = open_candev(netdev);
> +       if (err)
> +               return err;
> +
> +       ctrl_mode = ACC_REG_CONTROL_MASK_IE_RXTX |
> +                       ACC_REG_CONTROL_MASK_IE_TXERROR |
> +                       ACC_REG_CONTROL_MASK_IE_ERRWARN |
> +                       ACC_REG_CONTROL_MASK_IE_OVERRUN |
> +                       ACC_REG_CONTROL_MASK_IE_ERRPASS;
> +
> +       if (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
> +               ctrl_mode |= ACC_REG_CONTROL_MASK_IE_BUSERR;
> +
> +       if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
> +               ctrl_mode |= ACC_REG_CONTROL_MASK_MODE_LOM;
> +
> +       acc_set_bits(core, ACC_CORE_OF_CTRL_MODE, ctrl_mode);
> +
> +       acc_resetmode_leave(core);
> +       priv->can.state = CAN_STATE_ERROR_ACTIVE;
> +
> +       /* Resync TX FIFO indices to HW state after (re-)start. */
> +       tx_fifo_status = acc_read32(core, ACC_CORE_OF_TXFIFO_STATUS);
> +       core->tx_fifo_head = tx_fifo_status & 0xff;
> +       core->tx_fifo_tail = (tx_fifo_status >> 8) & 0xff;
> +
> +       netif_start_queue(netdev);
> +       return 0;
> +}
> +
> +int acc_close(struct net_device *netdev)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +       struct acc_core *core = priv->core;
> +
> +       acc_clear_bits(core, ACC_CORE_OF_CTRL_MODE,
> +                      ACC_REG_CONTROL_MASK_IE_RXTX |
> +                      ACC_REG_CONTROL_MASK_IE_TXERROR |
> +                      ACC_REG_CONTROL_MASK_IE_ERRWARN |
> +                      ACC_REG_CONTROL_MASK_IE_OVERRUN |
> +                      ACC_REG_CONTROL_MASK_IE_ERRPASS |
> +                      ACC_REG_CONTROL_MASK_IE_BUSERR);
> +
> +       netif_stop_queue(netdev);
> +       acc_resetmode_enter(core);
> +       priv->can.state = CAN_STATE_STOPPED;
> +
> +       /* Mark pending TX requests to be aborted after controller restart. */
> +       acc_write32(core, ACC_CORE_OF_TX_ABORT_MASK, 0xffff);
> +
> +       /* ACC_REG_CONTROL_MASK_MODE_LOM is only accessible in RESET mode */
> +       acc_clear_bits(core, ACC_CORE_OF_CTRL_MODE,
> +                      ACC_REG_CONTROL_MASK_MODE_LOM);
> +
> +       close_candev(netdev);
> +       return 0;
> +}
> +
> +netdev_tx_t acc_start_xmit(struct sk_buff *skb, struct net_device *netdev)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +       struct acc_core *core = priv->core;
> +       struct can_frame *cf = (struct can_frame *)skb->data;
> +       u8 tx_fifo_head = core->tx_fifo_head;
> +       int fifo_usage;
> +       u32 acc_id;
> +       u8 acc_dlc;
> +
> +       if (can_dropped_invalid_skb(netdev, skb))
> +               return NETDEV_TX_OK;
> +
> +       /* Access core->tx_fifo_tail only once because it may be changed
> +        * from the interrupt level.
> +        */
> +       fifo_usage = tx_fifo_head - core->tx_fifo_tail;
> +       if (fifo_usage < 0)
> +               fifo_usage += core->tx_fifo_size;
> +
> +       if (fifo_usage >= core->tx_fifo_size - 1) {
> +               netdev_err(core->netdev,
> +                          "BUG: TX ring full when queue awake!\n");
> +               netif_stop_queue(netdev);
> +               return NETDEV_TX_BUSY;
> +       }
> +
> +       if (fifo_usage == core->tx_fifo_size - 2)
> +               netif_stop_queue(netdev);
> +
> +       acc_dlc = can_get_cc_dlc(cf, priv->can.ctrlmode);
> +       if (cf->can_id & CAN_RTR_FLAG)
> +               acc_dlc |= ACC_CAN_RTR_FLAG;
> +
> +       if (cf->can_id & CAN_EFF_FLAG) {
> +               acc_id = cf->can_id & CAN_EFF_MASK;
> +               acc_id |= ACC_CAN_EFF_FLAG;
> +       } else {
> +               acc_id = cf->can_id & CAN_SFF_MASK;
> +       }
> +
> +       can_put_echo_skb(skb, netdev, core->tx_fifo_head, 0);
> +
> +       tx_fifo_head++;
> +       if (tx_fifo_head >= core->tx_fifo_size)
> +               tx_fifo_head = 0U;

Those three lines are repeated several times when setting tx_fifo_head
or tx_fifo_tail. I suggest adding an helper function (e.g.
acc_inc_fifo_idx()) to factorize all that.

> +       core->tx_fifo_head = tx_fifo_head;
> +
> +       acc_txq_put(core, acc_id, acc_dlc, cf->data);
> +
> +       return NETDEV_TX_OK;
> +}
> +
> +int acc_get_berr_counter(const struct net_device *netdev,
> +                        struct can_berr_counter *bec)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +       u32 core_status = acc_read32(priv->core, ACC_CORE_OF_STATUS);
> +
> +       bec->txerr = (core_status >> 8) & 0xff;
> +       bec->rxerr = core_status & 0xff;
> +
> +       return 0;
> +}
> +
> +int acc_set_mode(struct net_device *netdev, enum can_mode mode)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +
> +       switch (mode) {
> +       case CAN_MODE_START:
> +               /* Paranoid FIFO index check. */
> +               {
> +                       const u32 tx_fifo_status =
> +                               acc_read32(priv->core, ACC_CORE_OF_TXFIFO_STATUS);
> +                       const u8 hw_fifo_head = tx_fifo_status;
> +
> +                       if (hw_fifo_head != priv->core->tx_fifo_head ||
> +                           hw_fifo_head != priv->core->tx_fifo_tail) {
> +                               netdev_warn(netdev,
> +                                           "TX FIFO mismatch: T %2u H %2u; TFHW %#08x\n",
> +                                           priv->core->tx_fifo_tail,
> +                                           priv->core->tx_fifo_head,
> +                                           tx_fifo_status);
> +                       }
> +               }
> +               acc_resetmode_leave(priv->core);
> +               /* To leave the bus-off state the esdACC controller begins
> +                * here a grace period where it counts 128 "idle conditions" (each
> +                * of 11 consecutive recessive bits) on the bus as required
> +                * by the CAN spec.
> +                *
> +                * During this time the TX FIFO may still contain already
> +                * aborted "zombie" frames that are only drained from the FIFO
> +                * at the end of the grace period.
> +                *
> +                * To not to interfere with this drain process we don't
> +                * call netif_wake_queue() here. When the controller reaches
> +                * the error-active state again, it informs us about that
> +                * with an acc_bmmsg_errstatechange message. Then
> +                * netif_wake_queue() is called from
> +                * handle_core_msg_errstatechange() instead.
> +                */
> +               break;
> +
> +       default:
> +               return -EOPNOTSUPP;
> +       }
> +
> +       return 0;
> +}
> +
> +int acc_set_bittiming(struct net_device *netdev)
> +{
> +       struct acc_net_priv *priv = netdev_priv(netdev);
> +       const struct can_bittiming *bt = &priv->can.bittiming;
> +       u32 brp;
> +       u32 btr;
> +
> +       if (priv->ov->features & ACC_OV_REG_FEAT_MASK_CANFD) {
> +               u32 fbtr = 0;
> +
> +               netdev_dbg(netdev, "bit timing: brp %u, prop %u, ph1 %u ph2 %u, sjw %u\n",
> +                          bt->brp, bt->prop_seg,
> +                          bt->phase_seg1, bt->phase_seg2, bt->sjw);
> +
> +               brp = FIELD_PREP(ACC_REG_BRP_FD_MASK_BRP, bt->brp - 1);
> +
> +               btr = FIELD_PREP(ACC_REG_BTR_FD_MASK_TSEG1, bt->phase_seg1 + bt->prop_seg - 1);
> +               btr |= FIELD_PREP(ACC_REG_BTR_FD_MASK_TSEG2, bt->phase_seg2 - 1);
> +               btr |= FIELD_PREP(ACC_REG_BTR_FD_MASK_SJW, bt->sjw - 1);
> +
> +               /* Keep order of accesses to ACC_CORE_OF_BRP and ACC_CORE_OF_BTR. */
> +               acc_write32(priv->core, ACC_CORE_OF_BRP, brp);
> +               acc_write32(priv->core, ACC_CORE_OF_BTR, btr);
> +
> +               netdev_dbg(netdev, "ESDACC: BRP %u, NBTR 0x%08x, DBTR 0x%08x",
> +                          brp, btr, fbtr);
> +       } else {
> +               netdev_dbg(netdev, "bit timing: brp %u, prop %u, ph1 %u ph2 %u, sjw %u\n",
> +                          bt->brp, bt->prop_seg,
> +                          bt->phase_seg1, bt->phase_seg2, bt->sjw);
> +
> +               brp = FIELD_PREP(ACC_REG_BRP_CL_MASK_BRP, bt->brp - 1);
> +
> +               btr = FIELD_PREP(ACC_REG_BTR_CL_MASK_TSEG1, bt->phase_seg1 + bt->prop_seg - 1);
> +               btr |= FIELD_PREP(ACC_REG_BTR_CL_MASK_TSEG2, bt->phase_seg2 - 1);
> +               btr |= FIELD_PREP(ACC_REG_BTR_CL_MASK_SJW, bt->sjw - 1);
> +
> +               /* Keep order of accesses to ACC_CORE_OF_BRP and ACC_CORE_OF_BTR. */
> +               acc_write32(priv->core, ACC_CORE_OF_BRP, brp);
> +               acc_write32(priv->core, ACC_CORE_OF_BTR, btr);
> +
> +               netdev_dbg(netdev, "ESDACC: BRP %u, BTR 0x%08x", brp, btr);
> +       }
> +
> +       return 0;
> +}
> +
> +static void handle_core_msg_rxtxdone(struct acc_core *core,
> +                                    const struct acc_bmmsg_rxtxdone *msg)
> +{
> +       struct acc_net_priv *priv = netdev_priv(core->netdev);
> +       struct net_device_stats *stats = &core->netdev->stats;
> +       struct sk_buff *skb;
> +
> +       if (msg->dlc.rxtx.len & ACC_BM_LENFLAG_TX) {
> +               u8 tx_fifo_tail = core->tx_fifo_tail;
> +
> +               if (core->tx_fifo_head == tx_fifo_tail) {
> +                       netdev_warn(core->netdev,
> +                                   "TX interrupt, but queue is empty!?\n");
> +                       return;
> +               }
> +
> +               /* Direct access echo skb to attach HW time stamp. */
> +               skb = priv->can.echo_skb[tx_fifo_tail];
> +               if (skb) {
> +                       skb_hwtstamps(skb)->hwtstamp =
> +                               acc_ts2ktime(priv->ov, msg->ts);
> +               }
> +
> +               stats->tx_packets++;
> +               stats->tx_bytes += can_get_echo_skb(core->netdev, tx_fifo_tail,
> +                                                   NULL);
> +
> +               tx_fifo_tail++;
> +               if (tx_fifo_tail >= core->tx_fifo_size)
> +                       tx_fifo_tail = 0U;
> +               core->tx_fifo_tail = tx_fifo_tail;
> +
> +               netif_wake_queue(core->netdev);
> +
> +       } else {
> +               struct can_frame *cf;
> +
> +               skb = alloc_can_skb(core->netdev, &cf);
> +               if (!skb) {
> +                       stats->rx_dropped++;
> +                       return;
> +               }
> +
> +               cf->can_id = msg->id & CAN_EFF_MASK;

Semantically, you want the exclude the EFF, RTR and ERR flags, right?
If so, use CAN_ERR_MASK instead of CAN_EFF_MASK.

  https://elixir.bootlin.com/linux/v6.6/source/include/uapi/linux/can.h#L63

Please also check the other use of CAN_EFF_MASK throughout the driver.

> +               if (msg->id & ACC_CAN_EFF_FLAG)
> +                       cf->can_id |= CAN_EFF_FLAG;
> +
> +               can_frame_set_cc_len(cf, msg->dlc.rx.len & ACC_CAN_DLC_MASK,
> +                                    priv->can.ctrlmode);
> +
> +               if (msg->dlc.rx.len & ACC_CAN_RTR_FLAG) {
> +                       cf->can_id |= CAN_RTR_FLAG;
> +               } else {
> +                       memcpy(cf->data, msg->data, cf->len);
> +                       stats->rx_bytes += cf->len;
> +               }
> +               stats->rx_packets++;
> +
> +               skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
> +
> +               netif_rx(skb);
> +       }
> +}
> +
> +static void handle_core_msg_txabort(struct acc_core *core,
> +                                   const struct acc_bmmsg_txabort *msg)
> +{
> +       struct net_device_stats *stats = &core->netdev->stats;
> +       u8 tx_fifo_tail = core->tx_fifo_tail;
> +       u32 abort_mask = msg->abort_mask;   /* u32 extend to avoid warnings later */
> +
> +       /* The abort_mask shows which frames were aborted in ESDACC's FIFO. */
> +       while (tx_fifo_tail != core->tx_fifo_head && (abort_mask)) {
> +               const u32 tail_mask = (1U << tx_fifo_tail);
> +
> +               if (!(abort_mask & tail_mask))
> +                       break;
> +               abort_mask &= ~tail_mask;
> +
> +               can_free_echo_skb(core->netdev, tx_fifo_tail, NULL);
> +               stats->tx_dropped++;
> +               stats->tx_aborted_errors++;
> +
> +               tx_fifo_tail++;
> +               if (tx_fifo_tail >= core->tx_fifo_size)
> +                       tx_fifo_tail = 0;
> +       }
> +       core->tx_fifo_tail = tx_fifo_tail;
> +       if (abort_mask)
> +               netdev_warn(core->netdev, "Unhandled aborted messages\n");
> +
> +       if (!acc_resetmode_entered(core))
> +               netif_wake_queue(core->netdev);
> +}
> +
> +static void handle_core_msg_overrun(struct acc_core *core,
> +                                   const struct acc_bmmsg_overrun *msg)
> +{
> +       struct acc_net_priv *priv = netdev_priv(core->netdev);
> +       struct net_device_stats *stats = &core->netdev->stats;
> +       struct can_frame *cf;
> +       struct sk_buff *skb;
> +
> +       /* lost_cnt may be 0 if not supported by ESDACC version */
> +       if (msg->lost_cnt) {
> +               stats->rx_errors += msg->lost_cnt;
> +               stats->rx_over_errors += msg->lost_cnt;
> +       } else {
> +               stats->rx_errors++;
> +               stats->rx_over_errors++;
> +       }
> +
> +       skb = alloc_can_err_skb(core->netdev, &cf);
> +       if (!skb) {
> +               stats->rx_dropped++;
> +               return;
> +       }
> +
> +       cf->can_id |= CAN_ERR_CRTL;
> +       cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
> +
> +       skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
> +
> +       netif_rx(skb);
> +}
> +
> +static void handle_core_msg_buserr(struct acc_core *core,
> +                                  const struct acc_bmmsg_buserr *msg)
> +{
> +       struct acc_net_priv *priv = netdev_priv(core->netdev);
> +       struct net_device_stats *stats = &core->netdev->stats;
> +       struct can_frame *cf;
> +       struct sk_buff *skb;
> +       const u32 reg_status = msg->reg_status;
> +       const u8 rxerr = reg_status;
> +       const u8 txerr = (reg_status >> 8);
> +       u8 can_err_prot_type = 0U;
> +
> +       priv->can.can_stats.bus_error++;
> +
> +       /* Error occurred during transmission? */
> +       if ((msg->ecc & ACC_ECC_DIR) == 0) {
> +               can_err_prot_type |= CAN_ERR_PROT_TX;
> +               stats->tx_errors++;
> +       } else {
> +               stats->rx_errors++;
> +       }

Nitpick: check the "boolean true" branch first:

        if (msg->ecc & ACC_ECC_DIR) {
                stats->rx_errors++;
        } else {
                can_err_prot_type |= CAN_ERR_PROT_TX;
                stats->tx_errors++;
        }

> +       /* Determine error type */
> +       switch (msg->ecc & ACC_ECC_MASK) {
> +       case ACC_ECC_BIT:
> +               can_err_prot_type |= CAN_ERR_PROT_BIT;
> +               break;
> +       case ACC_ECC_FORM:
> +               can_err_prot_type |= CAN_ERR_PROT_FORM;
> +               break;
> +       case ACC_ECC_STUFF:
> +               can_err_prot_type |= CAN_ERR_PROT_STUFF;
> +               break;
> +       default:
> +               can_err_prot_type |= CAN_ERR_PROT_UNSPEC;
> +               break;
> +       }
> +
> +       skb = alloc_can_err_skb(core->netdev, &cf);
> +       if (!skb) {
> +               stats->rx_dropped++;

The CAN err skb is a socket CAN concept. It does not represent an
actual CAN frame. So no need to count that one as an rx_dropped.

> +               return;
> +       }
> +
> +       cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR;

Set the CAN_ERR_CNT flag to inform the userland that the error
counters are available.

> +
> +       /* Set protocol error type */
> +       cf->data[2] = can_err_prot_type;
> +       /* Set error location */
> +       cf->data[3] = msg->ecc & ACC_ECC_SEG;
> +
> +       /* Insert CAN TX and RX error counters. */
> +       cf->data[6] = txerr;
> +       cf->data[7] = rxerr;
> +
> +       skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
> +
> +       netif_rx(skb);
> +}
> +
> +static void
> +handle_core_msg_errstatechange(struct acc_core *core,
> +                              const struct acc_bmmsg_errstatechange *msg)
> +{
> +       struct acc_net_priv *priv = netdev_priv(core->netdev);
> +       struct net_device_stats *stats = &core->netdev->stats;
> +       struct can_frame *cf = NULL;
> +       struct sk_buff *skb;
> +       const u32 reg_status = msg->reg_status;
> +       const u8 rxerr = reg_status;
> +       const u8 txerr = (reg_status >> 8);
> +       enum can_state new_state;
> +
> +       if (reg_status & ACC_REG_STATUS_MASK_STATUS_BS) {
> +               new_state = CAN_STATE_BUS_OFF;
> +       } else if (reg_status & ACC_REG_STATUS_MASK_STATUS_EP) {
> +               new_state = CAN_STATE_ERROR_PASSIVE;
> +       } else if (reg_status & ACC_REG_STATUS_MASK_STATUS_ES) {
> +               new_state = CAN_STATE_ERROR_WARNING;
> +       } else {
> +               new_state = CAN_STATE_ERROR_ACTIVE;
> +               if (priv->can.state == CAN_STATE_BUS_OFF) {
> +                       /* See comment in acc_set_mode() for CAN_MODE_START */
> +                       netif_wake_queue(core->netdev);
> +               }
> +       }
> +
> +       skb = alloc_can_err_skb(core->netdev, &cf);
> +
> +       if (new_state != priv->can.state) {
> +               enum can_state tx_state, rx_state;
> +
> +               tx_state = (txerr >= rxerr) ?
> +                       new_state : CAN_STATE_ERROR_ACTIVE;
> +               rx_state = (rxerr >= txerr) ?
> +                       new_state : CAN_STATE_ERROR_ACTIVE;
> +
> +               /* Always call can_change_state() to update the state
> +                * even if alloc_can_err_skb() may have failed.
> +                * can_change_state() can cope with a NULL cf pointer.
> +                */
> +               can_change_state(core->netdev, cf, tx_state, rx_state);
> +       }
> +
> +       if (skb) {
> +               cf->data[6] = txerr;
> +               cf->data[7] = rxerr;

Set the CAN_ERR_CNT flag to inform the userland that the error
counters are available.

> +
> +               skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
> +
> +               netif_rx(skb);
> +       } else {
> +               stats->rx_dropped++;

The CAN err skb is a socket CAN concept. It does not represent an
actual CAN frame. So no need to count that one as an rx_dropped.

> +       }
> +
> +       if (new_state == CAN_STATE_BUS_OFF) {
> +               acc_write32(core, ACC_CORE_OF_TX_ABORT_MASK, 0xffff);
> +               can_bus_off(core->netdev);
> +       }
> +}
> +
> +static void handle_core_interrupt(struct acc_core *core)
> +{
> +       u32 msg_fifo_head = core->bmfifo.local_irq_cnt & 0xff;
> +
> +       while (core->bmfifo.msg_fifo_tail != msg_fifo_head) {
> +               const union acc_bmmsg *msg =
> +                       &core->bmfifo.messages[core->bmfifo.msg_fifo_tail];
> +
> +               switch (msg->msg_id) {
> +               case BM_MSG_ID_RXTXDONE:
> +                       handle_core_msg_rxtxdone(core, &msg->rxtxdone);
> +                       break;
> +
> +               case BM_MSG_ID_TXABORT:
> +                       handle_core_msg_txabort(core, &msg->txabort);
> +                       break;
> +
> +               case BM_MSG_ID_OVERRUN:
> +                       handle_core_msg_overrun(core, &msg->overrun);
> +                       break;
> +
> +               case BM_MSG_ID_BUSERR:
> +                       handle_core_msg_buserr(core, &msg->buserr);
> +                       break;
> +
> +               case BM_MSG_ID_ERRPASSIVE:
> +               case BM_MSG_ID_ERRWARN:
> +                       handle_core_msg_errstatechange(core,
> +                                                      &msg->errstatechange);
> +                       break;
> +
> +               default:
> +                       /* Ignore all other BM messages (like the CAN-FD messages) */
> +                       break;
> +               }
> +
> +               core->bmfifo.msg_fifo_tail =
> +                               (core->bmfifo.msg_fifo_tail + 1) & 0xff;
> +       }
> +}
> +
> +/**
> + * acc_card_interrupt() - handle the interrupts of an esdACC FPGA
> + *
> + * @ov: overview module structure
> + * @cores: array of core structures
> + *
> + * This function handles all interrupts pending for the overview module and the
> + * CAN cores of the esdACC FPGA.
> + *
> + * It examines for all cores (the overview module core and the CAN cores)
> + * the bmfifo.irq_cnt and compares it with the previously saved
> + * bmfifo.local_irq_cnt. An IRQ is pending if they differ. The esdACC FPGA
> + * updates the bmfifo.irq_cnt values by DMA.
> + *
> + * The pending interrupts are masked by writing to the IRQ mask register at
> + * ACC_OV_OF_BM_IRQ_MASK. This register has for each core a two bit command
> + * field evaluated as follows:
> + *
> + * Define,   bit pattern: meaning
> + *                    00: no action
> + * ACC_BM_IRQ_UNMASK, 01: unmask interrupt
> + * ACC_BM_IRQ_MASK,   10: mask interrupt
> + *                    11: no action
> + *
> + * For each CAN core with a pending IRQ handle_core_interrupt() handles all
> + * busmaster messages from the message FIFO. The last handled message (FIFO
> + * index) is written to the CAN core to acknowledge its handling.
> + *
> + * Last step is to unmask all interrupts in the FPGA using
> + * ACC_BM_IRQ_UNMASK_ALL.

If using kdoc style, then also document the return value. c.f. this
W=2 error message:

  drivers/net/can/esd/esdacc.c:719: warning: No description found for
return value of 'acc_card_interrupt'

> + */
> +irqreturn_t acc_card_interrupt(struct acc_ov *ov, struct acc_core *cores)
> +{
> +       u32 irqmask;
> +       int i;
> +
> +       /* First we look for whom interrupts are pending, card/overview
> +        * or any of the cores. Two bits in irqmask are used for each;
> +        * Each two bit field is set to ACC_BM_IRQ_MASK if an IRQ is
> +        * pending.
> +        */
> +       irqmask = 0;
> +       if (READ_ONCE(*ov->bmfifo.irq_cnt) != ov->bmfifo.local_irq_cnt) {
> +               irqmask |= ACC_BM_IRQ_MASK;
> +               ov->bmfifo.local_irq_cnt = READ_ONCE(*ov->bmfifo.irq_cnt);
> +       }
> +
> +       for (i = 0; i < ov->active_cores; i++) {
> +               struct acc_core *core = &cores[i];
> +
> +               if (READ_ONCE(*core->bmfifo.irq_cnt) != core->bmfifo.local_irq_cnt) {
> +                       irqmask |= (ACC_BM_IRQ_MASK << (2 * (i + 1)));
> +                       core->bmfifo.local_irq_cnt = READ_ONCE(*core->bmfifo.irq_cnt);
> +               }
> +       }
> +
> +       if (!irqmask)
> +               return IRQ_NONE;
> +
> +       /* At second we tell the card we're working on them by writing irqmask,
> +        * call handle_{ov|core}_interrupt and then acknowledge the
> +        * interrupts by writing irq_cnt:
> +        */
> +       acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_MASK, irqmask);
> +
> +       if (irqmask & ACC_BM_IRQ_MASK) {
> +               /* handle_ov_interrupt(); - no use yet. */
> +               acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_COUNTER,
> +                              ov->bmfifo.local_irq_cnt);
> +       }
> +
> +       for (i = 0; i < ov->active_cores; i++) {
> +               struct acc_core *core = &cores[i];
> +
> +               if (irqmask & (ACC_BM_IRQ_MASK << (2 * (i + 1)))) {
> +                       handle_core_interrupt(core);
> +                       acc_write32(core, ACC_OV_OF_BM_IRQ_COUNTER,
> +                                   core->bmfifo.local_irq_cnt);
> +               }
> +       }
> +
> +       acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_MASK, ACC_BM_IRQ_UNMASK_ALL);
> +
> +       return IRQ_HANDLED;
> +}
> diff --git a/drivers/net/can/esd/esdacc.h b/drivers/net/can/esd/esdacc.h
> new file mode 100644
> index 000000000000..73651bc1d52c
> --- /dev/null
> +++ b/drivers/net/can/esd/esdacc.h
> @@ -0,0 +1,393 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/* Copyright (C) 2015 - 2016 Thomas Körper, esd electronic system design gmbh
> + * Copyright (C) 2017 - 2022 Stefan Mätje, esd electronics gmbh
> + */
> +
> +#include <linux/bits.h>
> +#include <linux/can/dev.h>
> +#include <linux/kernel.h>
> +#include <linux/netdevice.h>
> +#include <linux/units.h>
> +
> +#define ACC_TS_FREQ_80MHZ                      (80 * HZ_PER_MHZ)
> +
> +#define ACC_CAN_EFF_FLAG                       0x20000000
> +#define ACC_CAN_RTR_FLAG                       0x10
> +#define ACC_CAN_DLC_MASK                       0x0f
> +
> +#define ACC_OV_OF_PROBE                                0x0000
> +#define ACC_OV_OF_VERSION                      0x0004
> +#define ACC_OV_OF_INFO                         0x0008
> +#define ACC_OV_OF_CANCORE_FREQ                 0x000c
> +#define ACC_OV_OF_TS_FREQ_LO                   0x0010
> +#define ACC_OV_OF_TS_FREQ_HI                   0x0014
> +#define ACC_OV_OF_IRQ_STATUS_CORES             0x0018
> +#define ACC_OV_OF_TS_CURR_LO                   0x001c
> +#define ACC_OV_OF_TS_CURR_HI                   0x0020
> +#define ACC_OV_OF_IRQ_STATUS                   0x0028
> +#define ACC_OV_OF_MODE                         0x002c
> +#define ACC_OV_OF_BM_IRQ_COUNTER               0x0070
> +#define ACC_OV_OF_BM_IRQ_MASK                  0x0074
> +#define ACC_OV_OF_MSI_DATA                     0x0080
> +#define ACC_OV_OF_MSI_ADDRESSOFFSET            0x0084

The #define indentation style is not consistant between the different
files. Please pick one (I suggest the single space to make it easier
to add more defines later on).

> +/* Feature flags are contained in the upper 16 bit of the version
> + * register at ACC_OV_OF_VERSION but only used with these masks after
> + * extraction into an extra variable => (xx - 16).
> + */
> +#define ACC_OV_REG_FEAT_IDX_CANFD              (27 - 16)
> +#define ACC_OV_REG_FEAT_IDX_NEW_PSC            (28 - 16)
> +#define ACC_OV_REG_FEAT_MASK_CANFD             BIT(ACC_OV_REG_FEAT_IDX_CANFD)
> +#define ACC_OV_REG_FEAT_MASK_NEW_PSC           BIT(ACC_OV_REG_FEAT_IDX_NEW_PSC)
> +
> +#define ACC_OV_REG_MODE_MASK_ENDIAN_LITTLE     0x00000001
> +#define ACC_OV_REG_MODE_MASK_BM_ENABLE         0x00000002
> +#define ACC_OV_REG_MODE_MASK_MODE_LED          0x00000004
> +#define ACC_OV_REG_MODE_MASK_TIMER             0x00000070
> +#define ACC_OV_REG_MODE_MASK_TIMER_ENABLE      0x00000010
> +#define ACC_OV_REG_MODE_MASK_TIMER_ONE_SHOT    0x00000020
> +#define ACC_OV_REG_MODE_MASK_TIMER_ABSOLUTE    0x00000040
> +#define ACC_OV_REG_MODE_MASK_TS_SRC            0x00000180
> +#define ACC_OV_REG_MODE_MASK_I2C_ENABLE                0x00000800
> +#define ACC_OV_REG_MODE_MASK_MSI_ENABLE                0x00004000
> +#define ACC_OV_REG_MODE_MASK_NEW_PSC_ENABLE    0x00008000
> +#define ACC_OV_REG_MODE_MASK_FPGA_RESET                0x80000000
> +
> +#define ACC_CORE_OF_CTRL_MODE                  0x0000
> +#define ACC_CORE_OF_STATUS_IRQ                 0x0008
> +#define ACC_CORE_OF_BRP                                0x000c
> +#define ACC_CORE_OF_BTR                                0x0010
> +#define ACC_CORE_OF_FBTR                       0x0014
> +#define ACC_CORE_OF_STATUS                     0x0030
> +#define ACC_CORE_OF_TXFIFO_CONFIG              0x0048
> +#define ACC_CORE_OF_TXFIFO_STATUS              0x004c
> +#define ACC_CORE_OF_TX_STATUS_IRQ              0x0050
> +#define ACC_CORE_OF_TX_ABORT_MASK              0x0054
> +#define ACC_CORE_OF_BM_IRQ_COUNTER             0x0070
> +#define ACC_CORE_OF_TXFIFO_ID                  0x00c0
> +#define ACC_CORE_OF_TXFIFO_DLC                 0x00c4
> +#define ACC_CORE_OF_TXFIFO_DATA_0              0x00c8
> +#define ACC_CORE_OF_TXFIFO_DATA_1              0x00cc
> +
> +#define ACC_REG_CONTROL_IDX_MODE_RESETMODE     0
> +#define ACC_REG_CONTROL_IDX_MODE_LOM           1
> +#define ACC_REG_CONTROL_IDX_MODE_STM           2
> +#define ACC_REG_CONTROL_IDX_MODE_TRANSEN       5
> +#define ACC_REG_CONTROL_IDX_MODE_TS            6
> +#define ACC_REG_CONTROL_IDX_MODE_SCHEDULE      7
> +#define ACC_REG_CONTROL_MASK_MODE_RESETMODE    \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_RESETMODE)
> +#define ACC_REG_CONTROL_MASK_MODE_LOM          \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_LOM)
> +#define ACC_REG_CONTROL_MASK_MODE_STM          \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_STM)
> +#define ACC_REG_CONTROL_MASK_MODE_TRANSEN      \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_TRANSEN)
> +#define ACC_REG_CONTROL_MASK_MODE_TS           \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_TS)
> +#define ACC_REG_CONTROL_MASK_MODE_SCHEDULE     \
> +                               BIT(ACC_REG_CONTROL_IDX_MODE_SCHEDULE)
> +
> +#define ACC_REG_CONTROL_IDX_IE_RXTX    8
> +#define ACC_REG_CONTROL_IDX_IE_TXERROR 9
> +#define ACC_REG_CONTROL_IDX_IE_ERRWARN 10
> +#define ACC_REG_CONTROL_IDX_IE_OVERRUN 11
> +#define ACC_REG_CONTROL_IDX_IE_TSI     12
> +#define ACC_REG_CONTROL_IDX_IE_ERRPASS 13
> +#define ACC_REG_CONTROL_IDX_IE_BUSERR  15
> +#define ACC_REG_CONTROL_MASK_IE_RXTX   BIT(ACC_REG_CONTROL_IDX_IE_RXTX)
> +#define ACC_REG_CONTROL_MASK_IE_TXERROR BIT(ACC_REG_CONTROL_IDX_IE_TXERROR)
> +#define ACC_REG_CONTROL_MASK_IE_ERRWARN BIT(ACC_REG_CONTROL_IDX_IE_ERRWARN)
> +#define ACC_REG_CONTROL_MASK_IE_OVERRUN BIT(ACC_REG_CONTROL_IDX_IE_OVERRUN)
> +#define ACC_REG_CONTROL_MASK_IE_TSI    BIT(ACC_REG_CONTROL_IDX_IE_TSI)
> +#define ACC_REG_CONTROL_MASK_IE_ERRPASS BIT(ACC_REG_CONTROL_IDX_IE_ERRPASS)
> +#define ACC_REG_CONTROL_MASK_IE_BUSERR BIT(ACC_REG_CONTROL_IDX_IE_BUSERR)
> +
> +/* BRP and BTR register layout for CAN-Classic version */
> +#define ACC_REG_BRP_CL_MASK_BRP         GENMASK(8, 0)
> +#define ACC_REG_BTR_CL_MASK_TSEG1       GENMASK(3, 0)
> +#define ACC_REG_BTR_CL_MASK_TSEG2       GENMASK(18, 16)
> +#define ACC_REG_BTR_CL_MASK_SJW         GENMASK(25, 24)
> +
> +/* BRP and BTR register layout for CAN-FD version */
> +#define ACC_REG_BRP_FD_MASK_BRP         GENMASK(7, 0)
> +#define ACC_REG_BTR_FD_MASK_TSEG1       GENMASK(7, 0)
> +#define ACC_REG_BTR_FD_MASK_TSEG2       GENMASK(22, 16)
> +#define ACC_REG_BTR_FD_MASK_SJW         GENMASK(30, 24)
> +
> +/* 256 BM_MSGs of 32 byte size */
> +#define ACC_CORE_DMAMSG_SIZE           32U
> +#define ACC_CORE_DMABUF_SIZE           (256U * ACC_CORE_DMAMSG_SIZE)
> +
> +enum acc_bmmsg_id {
> +       BM_MSG_ID_RXTXDONE = 0x01,
> +       BM_MSG_ID_TXABORT = 0x02,
> +       BM_MSG_ID_OVERRUN = 0x03,
> +       BM_MSG_ID_BUSERR = 0x04,
> +       BM_MSG_ID_ERRPASSIVE = 0x05,
> +       BM_MSG_ID_ERRWARN = 0x06,
> +       BM_MSG_ID_TIMESLICE = 0x07,
> +       BM_MSG_ID_HWTIMER = 0x08,
> +       BM_MSG_ID_HOTPLUG = 0x09,
> +};
> +
> +/* The struct acc_bmmsg_* structure declarations that follow here provide
> + * access to the ring buffer of bus master messages maintained by the FPGA
> + * bus master engine. All bus master messages have the same size of
> + * ACC_CORE_DMAMSG_SIZE and a minimum alignment of ACC_CORE_DMAMSG_SIZE in
> + * memory.
> + *
> + * All structure members are natural aligned. Therefore we should not need
> + * a __packed attribute. All struct acc_bmmsg_* declarations have at least
> + * reserved* members to fill the structure to the full ACC_CORE_DMAMSG_SIZE.
> + *
> + * A failure of this property due padding will be detected at compile time
> + * by static_assert(sizeof(union acc_bmmsg) == ACC_CORE_DMAMSG_SIZE).
> + */
> +
> +struct acc_bmmsg_rxtxdone {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u8 reserved1[2];
> +       u8 txtsfifo_level;
> +       u8 reserved2[3];
> +       u32 id;
> +       union {
> +               struct {
> +                       u8 len;
> +                       u8 reserved0;

Technically, this one is not reserved because is it used in both rx
and tx structures.

> +                       u8 bits;
> +                       u8 state;
> +               } rxtx;
> +               struct {
> +                       u8 len;
> +                       u8 msg_lost;
> +                       u8 bits;
> +                       u8 state;
> +               } rx;
> +               struct {
> +                       u8 len;
> +                       u8 txfifo_idx;
> +                       u8 bits;
> +                       u8 state;
> +               } tx;
> +       } dlc;
          ^^^
This looks like a misnomer to me: the union contains more than the dlc.

What about:

        struct {
                u8 len;
                union {
                        u8 rx_msg_lost;
                        u8 tx_fifo_idx;
                } __packed;
                u8 bits;
                u8 state;
        } rxtx;

in place of that union?

> +       u8 data[8];

Nitpick:

        u8 data[CAN_MAX_DLEN];

> +       /* Time stamps in struct acc_ov::timestamp_frequency ticks. */
> +       u64 ts;
> +};
> +
> +struct acc_bmmsg_txabort {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u16 abort_mask;
> +       u8 txtsfifo_level;
> +       u8 reserved2[1];
> +       u16 abort_mask_txts;
> +       u64 ts;
> +       u32 reserved3[4];
> +};
> +
> +struct acc_bmmsg_overrun {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u8 lost_cnt;
> +       u8 reserved1;
> +       u8 txtsfifo_level;
> +       u8 reserved2[3];
> +       u64 ts;
> +       u32 reserved3[4];
> +};
> +
> +struct acc_bmmsg_buserr {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u8 ecc;
> +       u8 reserved1;
> +       u8 txtsfifo_level;
> +       u8 reserved2[3];
> +       u64 ts;
> +       u32 reg_status;
> +       u32 reg_btr;
> +       u32 reserved3[2];
> +};
> +
> +struct acc_bmmsg_errstatechange {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u8 reserved1[2];
> +       u8 txtsfifo_level;
> +       u8 reserved2[3];
> +       u64 ts;
> +       u32 reg_status;
> +       u32 reserved3[3];
> +};
> +
> +struct acc_bmmsg_timeslice {
> +       u8 msg_id;
> +       u8 txfifo_level;
> +       u8 reserved1[2];
> +       u8 txtsfifo_level;
> +       u8 reserved2[3];
> +       u64 ts;
> +       u32 reserved3[4];
> +};
> +
> +struct acc_bmmsg_hwtimer {
> +       u8 msg_id;
> +       u8 reserved1[3];
> +       u32 reserved2[1];
> +       u64 timer;
> +       u32 reserved3[4];
> +};
> +
> +struct acc_bmmsg_hotplug {
> +       u8 msg_id;
> +       u8 reserved1[3];
> +       u32 reserved2[7];
> +};
> +
> +union acc_bmmsg {
> +       u8 msg_id;
> +       struct acc_bmmsg_rxtxdone rxtxdone;
> +       struct acc_bmmsg_txabort txabort;
> +       struct acc_bmmsg_overrun overrun;
> +       struct acc_bmmsg_buserr buserr;
> +       struct acc_bmmsg_errstatechange errstatechange;
> +       struct acc_bmmsg_timeslice timeslice;
> +       struct acc_bmmsg_hwtimer hwtimer;
> +};
> +
> +/* Check size of union acc_bmmsg to be of expected size. */
> +static_assert(sizeof(union acc_bmmsg) == ACC_CORE_DMAMSG_SIZE);
> +
> +struct acc_bmfifo {
> +       const union acc_bmmsg *messages;
> +       /* irq_cnt points to an u32 value where the ESDACC FPGA deposits
> +        * the bm_fifo head index in coherent DMA memory. Only bits 7..0
> +        * are valid. Use READ_ONCE() to access this memory location.
> +        */
> +       const u32 *irq_cnt;
> +       u32 local_irq_cnt;
> +       u32 msg_fifo_tail;
> +};
> +
> +struct acc_core {
> +       void __iomem *addr;
> +       struct net_device *netdev;
> +       struct acc_bmfifo bmfifo;
> +       u8 tx_fifo_size;
> +       u8 tx_fifo_head;
> +       u8 tx_fifo_tail;
> +};
> +
> +struct acc_ov {
> +       void __iomem *addr;
> +       struct acc_bmfifo bmfifo;
> +       u32 timestamp_frequency;
> +       u32 core_frequency;
> +       u16 version;
> +       u16 features;
> +       u8 total_cores;
> +       u8 active_cores;
> +};
> +
> +struct acc_net_priv {
> +       struct can_priv can; /* must be the first member! */
> +       struct acc_core *core;
> +       struct acc_ov *ov;
> +};
> +
> +static inline u32 acc_read32(struct acc_core *core, unsigned short offs)
> +{
> +       return ioread32be(core->addr + offs);
> +}
> +
> +static inline void acc_write32(struct acc_core *core,
> +                              unsigned short offs, u32 v)
> +{
> +       iowrite32be(v, core->addr + offs);
> +}
> +
> +static inline void acc_write32_noswap(struct acc_core *core,
> +                                     unsigned short offs, u32 v)
> +{
> +       iowrite32(v, core->addr + offs);
> +}
> +
> +static inline void acc_set_bits(struct acc_core *core,
> +                               unsigned short offs, u32 mask)
> +{
> +       u32 v = acc_read32(core, offs);
> +
> +       v |= mask;
> +       acc_write32(core, offs, v);
> +}
> +
> +static inline void acc_clear_bits(struct acc_core *core,
> +                                 unsigned short offs, u32 mask)
> +{
> +       u32 v = acc_read32(core, offs);
> +
> +       v &= ~mask;
> +       acc_write32(core, offs, v);
> +}
> +
> +static inline int acc_resetmode_entered(struct acc_core *core)
> +{
> +       u32 ctrl = acc_read32(core, ACC_CORE_OF_CTRL_MODE);
> +
> +       return (ctrl & ACC_REG_CONTROL_MASK_MODE_RESETMODE) != 0;
> +}
> +
> +static inline u32 acc_ov_read32(struct acc_ov *ov, unsigned short offs)
> +{
> +       return ioread32be(ov->addr + offs);
> +}
> +
> +static inline void acc_ov_write32(struct acc_ov *ov,
> +                                 unsigned short offs, u32 v)
> +{
> +       iowrite32be(v, ov->addr + offs);
> +}
> +
> +static inline void acc_ov_set_bits(struct acc_ov *ov,
> +                                  unsigned short offs, u32 b)
> +{
> +       u32 v = acc_ov_read32(ov, offs);
> +
> +       v |= b;
> +       acc_ov_write32(ov, offs, v);
> +}
> +
> +static inline void acc_ov_clear_bits(struct acc_ov *ov,
> +                                    unsigned short offs, u32 b)
> +{
> +       u32 v = acc_ov_read32(ov, offs);.
> +
> +       v &= ~b;
> +       acc_ov_write32(ov, offs, v);
> +}
> +
> +static inline void acc_reset_fpga(struct acc_ov *ov)
> +{
> +       acc_ov_write32(ov, ACC_OV_OF_MODE, ACC_OV_REG_MODE_MASK_FPGA_RESET);
> +
> +       /* Also reset I^2C, to re-detect card addons at every driver start: */
> +       acc_ov_clear_bits(ov, ACC_OV_OF_MODE, ACC_OV_REG_MODE_MASK_I2C_ENABLE);
> +       mdelay(2);
> +       acc_ov_set_bits(ov, ACC_OV_OF_MODE, ACC_OV_REG_MODE_MASK_I2C_ENABLE);
> +       mdelay(10);

Maybe add a macro to replace those two delays magic numbers?


> +}
> +
> +void acc_init_ov(struct acc_ov *ov, struct device *dev);
> +void acc_init_bm_ptr(struct acc_ov *ov, struct acc_core *cores,
> +                    const void *mem);
> +int acc_open(struct net_device *netdev);
> +int acc_close(struct net_device *netdev);
> +netdev_tx_t acc_start_xmit(struct sk_buff *skb, struct net_device *netdev);
> +int acc_get_berr_counter(const struct net_device *netdev,
> +                        struct can_berr_counter *bec);
> +int acc_set_mode(struct net_device *netdev, enum can_mode mode);
> +int acc_set_bittiming(struct net_device *netdev);
> +irqreturn_t acc_card_interrupt(struct acc_ov *ov, struct acc_core *cores);
> --
> 2.34.1
>
>

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