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linux/include
Masahiro Yamada f3304ecd7f linux/export: use inline assembler to populate symbol CRCs
Since commit 7b4537199a ("kbuild: link symbol CRCs at final link,
removing CONFIG_MODULE_REL_CRCS"), the module versioning on the
(non-upstreamed-yet) kvx Linux port is broken due to unexpected padding
for __crc_* symbols. The kvx GCC adds padding so u32 gets 8-byte
alignment instead of 4.

I do not know if this happens for upstream architectures in general,
but any compiler has the freedom to insert padding for faster access.

Use the inline assembler to directly specify the wanted data layout.
This is how we previously did before the breakage.

Link: https://lore.kernel.org/lkml/20220817161438.32039-1-ysionneau@kalray.eu/
Link: https://lore.kernel.org/linux-kbuild/31ce5305-a76b-13d7-ea55-afca82c46cf2@kalray.eu/
Fixes: 7b4537199a ("kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS")
Reported-by: Yann Sionneau <ysionneau@kalray.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Yann Sionneau <ysionneau@kalray.eu>
2022-09-29 04:40:15 +09:00
..
acpi
asm-generic arm64 fixes for -rc7 2022-09-23 15:28:51 -07:00
clocksource
crypto
drm
dt-bindings
keys
kunit
kvm
linux linux/export: use inline assembler to populate symbol CRCs 2022-09-29 04:40:15 +09:00
math-emu
media
memory
misc
net bluetooth pull request for net: 2022-09-19 18:01:04 -07:00
pcmcia
ras
rdma
rv
scsi
soc
sound
target
trace ARM: SoC fixes for 6.0-rc6 2022-09-22 11:10:11 -07:00
uapi
ufs
vdso
video
xen