6.12-stable review patch. If anyone has any objections, please let me know.
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From: Linus Torvalds torvalds@linux-foundation.org
[ Upstream commit 6f110a5e4f9977c31ce76fefbfef6fd4eab6bfb7 ]
... and don't error out so hard on missing module descriptions.
Before commit 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()") we used to warn about missing module descriptions, but only when building with extra warnigns (ie 'W=1').
After that commit the warning became an unconditional hard error.
And it turns out not all modules have been converted despite the claims to the contrary. As reported by Damian Tometzki, the slub KUnit test didn't have a module description, and apparently nobody ever really noticed.
The reason nobody noticed seems to be that the slub KUnit tests get disabled by SLUB_TINY, which also ends up disabling a lot of other code, both in tests and in slub itself. And so anybody doing full build tests didn't actually see this failre.
So let's disable SLUB_TINY for build-only tests, since it clearly ends up limiting build coverage. Also turn the missing module descriptions error back into a warning, but let's keep it around for non-'W=1' builds.
Reported-by: Damian Tometzki damian@riscv-rocks.de Link: https://lore.kernel.org/all/01070196099fd059-e8463438-7b1b-4ec8-816d-173874b... Cc: Masahiro Yamada masahiroy@kernel.org Cc: Jeff Johnson jeff.johnson@oss.qualcomm.com Fixes: 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()") Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/Kconfig b/mm/Kconfig index 33fa51d608dc5..59c36bb9ce6b0 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -244,7 +244,7 @@ config SLUB
config SLUB_TINY bool "Configure for minimal memory footprint" - depends on EXPERT + depends on EXPERT && !COMPILE_TEST select SLAB_MERGE_DEFAULT help Configures the slab allocator in a way to achieve minimal memory