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author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-06-10 18:43:43 +0300 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-06-19 14:57:56 +0300 |
commit | ca5dabcff1df6bc8c413922b5fa63cc602858803 (patch) | |
tree | c57c2d398f1d4d9e47d78dadd3eb0d5af0b4f02a /arch/powerpc/platforms/powernv/rng.c | |
parent | 7bc08056a6dabc3a1442216daf527edf61ac24b6 (diff) | |
download | linux-ca5dabcff1df6bc8c413922b5fa63cc602858803.tar.xz |
powerpc/prom_init: Fix build failure with GCC_PLUGIN_STRUCTLEAK_BYREF_ALL and KASAN
When CONFIG_KASAN is selected, we expect prom_init to use __memset()
because it is too early to use memset().
But with CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL, the compiler adds calls
to memset() to clear objects on stack, hence the following failure:
PROMCHK arch/powerpc/kernel/prom_init_check
Error: External symbol 'memset' referenced from prom_init.c
make[2]: *** [arch/powerpc/kernel/Makefile:204 : arch/powerpc/kernel/prom_init_check] Erreur 1
prom_find_machine_type() is called from prom_init() and is called only
once, so lets put compat[] in BSS instead of stack to avoid that.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3802811f7cf94f730be44688539c01bba3a3b5c0.1654875808.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/platforms/powernv/rng.c')
0 files changed, 0 insertions, 0 deletions