From: Dirk Müller dmueller@suse.de
stable inclusion from stable-v5.10.110 commit b02d33171dfb26a7285f6cb131d4159685395296 bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit a5359ddd052860bacf957e65fe819c63e974b3a6 upstream.
GCC 10+ defaults to -fno-common, which enforces proper declaration of external references using "extern". without this change a link would fail with:
lib/raid6/test/algos.c:28: multiple definition of `raid6_call'; lib/raid6/test/test.c:22: first defined here
the pq.h header that is included already includes an extern declaration so we can just remove the redundant one here.
Cc: stable@vger.kernel.org Signed-off-by: Dirk Müller dmueller@suse.de Reviewed-by: Paul Menzel pmenzel@molgen.mpg.de Signed-off-by: Song Liu song@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- lib/raid6/test/test.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/lib/raid6/test/test.c b/lib/raid6/test/test.c index a3cf071941ab..841a55242aba 100644 --- a/lib/raid6/test/test.c +++ b/lib/raid6/test/test.c @@ -19,7 +19,6 @@ #define NDISKS 16 /* Including P and Q */
const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); -struct raid6_calls raid6_call;
char *dataptrs[NDISKS]; char data[NDISKS][PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));