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lib/raid6/test: fix multiple definition linking error

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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>
This commit is contained in:
Dirk Müller 2022-02-08 17:50:50 +01:00 committed by Greg Kroah-Hartman
parent e73efa5ad5
commit 002288800e
1 changed files with 0 additions and 1 deletions
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lib/raid6/test/test.c
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@ -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)));