From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Nathan Chancellor <nathan@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>,
Kees Cook <keescook@chromium.org>
Subject: [PATCH 5.19 02/48] Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
Date: Mon, 10 Oct 2022 09:05:00 +0200 [thread overview]
Message-ID: <20221010070333.750059897@linuxfoundation.org> (raw)
In-Reply-To: <20221010070333.676316214@linuxfoundation.org>
From: Sami Tolvanen <samitolvanen@google.com>
commit 2120635108b35ecad9c59c8b44f6cbdf4f98214e upstream.
We enable -Wcast-function-type globally in the kernel to warn about
mismatching types in function pointer casts. Compilers currently
warn only about ABI incompability with this flag, but Clang 16 will
enable a stricter version of the check by default that checks for an
exact type match. This will be very noisy in the kernel, so disable
-Wcast-function-type-strict without W=1 until the new warnings have
been addressed.
Cc: stable@vger.kernel.org
Link: https://reviews.llvm.org/D134831
Link: https://github.com/ClangBuiltLinux/linux/issues/1724
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220930203310.4010564-1-samitolvanen@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
scripts/Makefile.extrawarn | 1 +
1 file changed, 1 insertion(+)
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -53,6 +53,7 @@ KBUILD_CFLAGS += -Wno-format-zero-length
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare
KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
+KBUILD_CFLAGS += $(call cc-disable-warning, cast-function-type-strict)
endif
endif
next prev parent reply other threads:[~2022-10-10 7:08 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-10 7:04 [PATCH 5.19 00/48] 5.19.15-rc1 review Greg Kroah-Hartman
2022-10-10 7:04 ` [PATCH 5.19 01/48] sparc: Unbreak the build Greg Kroah-Hartman
2022-10-10 7:05 ` Greg Kroah-Hartman [this message]
2022-10-10 7:05 ` [PATCH 5.19 03/48] hardening: Remove Clangs enable flag for -ftrivial-auto-var-init=zero Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 04/48] docs: update mediator information in CoC docs Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 05/48] xsk: Inherit need_wakeup flag for shared sockets Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 06/48] wait_on_bit: add an acquire memory barrier Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 07/48] provide arch_test_bit_acquire for architectures that define test_bit Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 08/48] fs: fix UAF/GPF bug in nilfs_mdt_destroy Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 09/48] firmware: arm_scmi: Improve checks in the info_get operations Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 10/48] firmware: arm_scmi: Harden accesses to the sensor domains Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 11/48] firmware: arm_scmi: Add SCMI PM driver remove routine Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 12/48] arm64: dts: rockchip: fix upper usb port on BPI-R2-Pro Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 13/48] dmaengine: xilinx_dma: Fix devm_platform_ioremap_resource error handling Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 14/48] dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 15/48] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 16/48] wifi: iwlwifi: dont spam logs with NSS>2 messages Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 17/48] ARM: dts: fix Moxa SDIO compatible, remove sdhci misnomer Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 18/48] drm/amdgpu/mes: zero the sdma_hqd_mask of 2nd SDMA engine for SDMA 6.0.1 Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 19/48] scsi: qedf: Fix a UAF bug in __qedf_probe() Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 20/48] net/ieee802154: fix uninit value bug in dgram_sendmsg Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 21/48] net: marvell: prestera: add support for for Aldrin2 Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 22/48] ALSA: hda/hdmi: Fix the converter reuse for the silent stream Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 23/48] um: Cleanup syscall_handler_t cast in syscalls_32.h Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 24/48] um: Cleanup compiler warning in arch/x86/um/tls_32.c Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 25/48] gpio: ftgpio010: Make irqchip immutable Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 26/48] arch: um: Mark the stack non-executable to fix a binutils warning Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 27/48] net: atlantic: fix potential memory leak in aq_ndev_close() Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 28/48] KVM: s390: Pass initialized arg even if unused Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 29/48] drm/amd/display: Fix double cursor on non-video RGB MPO Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 30/48] drm/amd/display: Assume an LTTPR is always present on fixed_vs links Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 31/48] drm/amd/display: update gamut remap if plane has changed Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 32/48] drm/amd/display: skip audio setup when audio stream is enabled Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 33/48] drm/amd/display: Fix DP MST timeslot issue when fallback happened Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 34/48] drm/amd/display: increase dcn315 pstate change latency Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 35/48] perf/x86/intel: Fix unchecked MSR access error for Alder Lake N Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 36/48] [coredump] dont use __kernel_write() on kmap_local_page() Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 37/48] i2c: davinci: fix PM disable depth imbalance in davinci_i2c_probe Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 38/48] usb: mon: make mmapped memory read only Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 39/48] USB: serial: ftdi_sio: fix 300 bps rate for SIO Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 40/48] gpiolib: acpi: Add support to ignore programming an interrupt Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 41/48] gpiolib: acpi: Add a quirk for Asus UM325UAZ Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 42/48] mmc: core: Replace with already defined values for readability Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 43/48] mmc: core: Terminate infinite loop in SD-UHS voltage switch Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 44/48] rpmsg: qcom: glink: replace strncpy() with strscpy_pad() Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 45/48] bpf: Gate dynptr API behind CAP_BPF Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 46/48] net: ethernet: mtk_eth_soc: fix state in __mtk_foe_entry_clear Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 47/48] bpf: Fix resetting logic for unreferenced kptrs Greg Kroah-Hartman
2022-10-10 7:05 ` [PATCH 5.19 48/48] Bluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works Greg Kroah-Hartman
2022-10-10 16:01 ` [PATCH 5.19 00/48] 5.19.15-rc1 review Naresh Kamboju
2022-10-10 16:29 ` Justin Forbes
2022-10-10 18:51 ` Florian Fainelli
2022-10-10 21:28 ` Shuah Khan
2022-10-11 7:25 ` Bagas Sanjaya
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