Build regressions/improvements in v6.2-rc2

Geert Uytterhoeven
2023-01-02T11:10:27Z

Below is the list of build error/warning regressions/improvements in
v6.2-rc2[1] compared to v6.1[2].

Summarized:
- build errors: +10/-13
- build warnings: +13/-10

JFYI, when comparing v6.2-rc2[1] to v6.2-rc1[3], the summaries are:
- build errors: +0/-1
- build warnings: +0/-0

Happy fixing! ;-)

Thanks to the linux-next team for providing the build service.

[1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/88603b6dc419445847923fcb7fe5080067a30f98/ (all 152 configs)
[2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/830b3c68c1fb1e9176028d02ef86f3cf76aa2476/ (all 152 configs)
[3] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/1b929c02afd37871d5afb9d498426f83432e71c2/ (all 152 configs)

*** ERRORS ***

10 error regressions:
+ /kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c: error: the frame size of 2224 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]: => 7082:1
+ /kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_mode_vba_314.c: error: the frame size of 2208 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]: => 7127:1
+ /kisskb/src/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c: error: array subscript 2 is above array bounds of 'u32[2]' {aka 'unsigned int[2]'} [-Werror=array-bounds]: => 641:28
+ /kisskb/src/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c: error: array subscript 3 is above array bounds of 'u32[2]' {aka 'unsigned int[2]'} [-Werror=array-bounds]: => 641:28
+ /kisskb/src/include/linux/bitfield.h: error: call to '__field_overflow' declared with attribute error: value doesn't fit into mask: => 151:3
+ /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_263' declared with attribute error: Unsupported access size for {READ,WRITE}_ONCE().: => 358:45
+ /kisskb/src/include/linux/fortify-string.h: error: '__builtin_memcpy' offset [0, 127] is out of the bounds [0, 0] [-Werror=array-bounds]: => 57:33
+ /kisskb/src/include/linux/fortify-string.h: error: '__builtin_memset' pointer overflow between offset [28, 898293814] and size [-898293787, -1] [-Werror=array-bounds]: => 59:33
+ /kisskb/src/kernel/kcsan/kcsan_test.c: error: the frame size of 1680 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]: => 257:1
+ {standard input}: Error: unknown pseudo-op: `.cfi_def_c': => 1718

13 error improvements:
- /kisskb/src/arch/sh/include/asm/io.h: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]: 239:34 =>
- /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: 'X86_VENDOR_AMD' undeclared (first use in this function): 149:37 =>
- /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: 'struct cpuinfo_um' has no member named 'x86_vendor': 149:22 =>
- /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: control reaches end of non-void function [-Werror=return-type]: 150:1 =>
- /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: 'struct cpuinfo_um' has no member named 'x86_cache_size': 88:22 =>
- /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: control reaches end of non-void function [-Werror=return-type]: 89:1 =>
- /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: implicit declaration of function '__copy_user_nocache' [-Werror=implicit-function-declaration]: 100:2 =>
- /kisskb/src/drivers/net/ethernet/marvell/prestera/prestera_flower.c: error: 'rule' is used uninitialized [-Werror=uninitialized]: 480:34 =>
- {standard input}: Error: displacement to undefined symbol .L377 overflows 12-bit field: 2286 =>
- {standard input}: Error: displacement to undefined symbol .L378 overflows 8-bit field : 2302 =>
- {standard input}: Error: displacement to undefined symbol .L382 overflows 8-bit field : 2213 =>
- {standard input}: Error: pcrel too far: 2274, 2232, 2204, 2217, 2293, 2248, 2206, 2229, 2261, 2221, 2215, 2247, 2262, 2216, 2209, 2249, 2231, 2259 =>
- {standard input}: Error: unknown pseudo-op: `.l': 2305 =>

*** WARNINGS ***

13 warning regressions:
+ modpost: WARNING: modpost: "__ndelay" [drivers/gpio/gpio-latch.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/iio/adc/max11410.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/input/keyboard/tegra-kbc.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/mfd/axp20x.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/mmc/host/sunplus-mmc.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/net/ethernet/renesas/rswitch_drv.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/net/wireless/realtek/rtw89/rtw89_8852b.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/phy/renesas/r8a779f0-ether-serdes.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/ptp/ptp_idt82p33.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [drivers/usb/fotg210/fotg210.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "__udelay" [fs/xfs/xfs.ko] has no CRC!: => N/A
+ modpost: WARNING: modpost: "empty_zero_page" [net/rxrpc/rxperf.ko] has no CRC!: => N/A

10 warning improvements:
- modpost: WARNING: modpost: "__ashldi3" [lib/zstd/zstd_compress.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: "__udelay" [drivers/net/can/pch_can.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: "__udelay" [drivers/net/ethernet/fealnx.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: "__udelay" [drivers/net/ethernet/smsc/smc911x.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: "__udelay" [drivers/net/pcs/pcs-altera-tse.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: "__udelay" [drivers/usb/host/fotg210-hcd.ko] has no CRC!: N/A =>
- modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o: section mismatch in reference: qed_mfw_ext_maps (section: .data) -> qed_mfw_legacy_bb_100g (section: .init.rodata): N/A =>
- modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o: section mismatch in reference: qed_mfw_legacy_maps (section: .data) -> qed_mfw_legacy_bb_100g (section: .init.rodata): N/A =>
- modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o: section mismatch in reference: qede_forced_speed_maps (section: .data) -> qede_forced_speed_100000 (section: .init.rodata): N/A =>
- modpost: WARNING: modpost: vmlinux.o: section mismatch in reference: __trace_event_discard_commit (section: .text.unlikely) -> initcall_level_names (section: .init.data): N/A =>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds