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Subject[PATCH] fixup! kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS
Date
I will squash this into

https://patchwork.kernel.org/project/linux-kbuild/patch/20220513113930.10488-3-masahiroy@kernel.org/

Sedat Reported an error:

https://lore.kernel.org/linux-kbuild/CA+icZUWttwjhDNPO1VuVyiMoReH5e83nsYDd0rEoY8-Uwv6pHw@mail.gmail.com/T/#md82f561e348b7959b7270c33ac86fa3edb0d773a

__used is needed to make the combination of
CONFIG_MODVERSIONS and CONFIG_LTO_CLANG working.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

include/linux/export-internal.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/export-internal.h b/include/linux/export-internal.h
index 77175d561058..c2b1d4fd5987 100644
--- a/include/linux/export-internal.h
+++ b/include/linux/export-internal.h
@@ -10,7 +10,8 @@
#include <linux/compiler.h>
#include <linux/types.h>

+/* __used is needed to keep __crc_* for LTO */
#define SYMBOL_CRC(sym, crc, sec) \
- u32 __section("___kcrctab" sec "+" #sym) __crc_##sym = crc
+ u32 __section("___kcrctab" sec "+" #sym) __used __crc_##sym = crc

#endif /* __LINUX_EXPORT_INTERNAL_H__ */
--
2.32.0
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