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crypto: xor - Remove unused variable count in do_xor_speed

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Clang warns:

crypto/xor.c:101:4: warning: variable 'count' is uninitialized when used
here [-Wuninitialized]
                        count++;
                        ^~~~~
crypto/xor.c:86:17: note: initialize the variable 'count' to silence
this warning
        int i, j, count;
                       ^
                        = 0
1 warning generated.

After the refactoring to use ktime that happened in this function, count
is only assigned, never read. Just remove the variable to get rid of the
warning.

Fixes: c055e3eae0 ("crypto: xor - use ktime for template benchmarking")
Link: https://github.com/ClangBuiltLinux/linux/issues/1171
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Nathan Chancellor
2020-10-06 12:58:48 -07:00
committed by Herbert Xu
parent 4f28945da0
commit 10b0f78a73
1 changed files with 1 additions and 3 deletions
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4
crypto/xor.c
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@@ -83,7 +83,7 @@ static void __init
do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2) do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2)
{ {
int speed; int speed;
int i, j, count; int i, j;
ktime_t min, start, diff; ktime_t min, start, diff;
tmpl->next = template_list; tmpl->next = template_list;
@@ -98,8 +98,6 @@ do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2)
mb(); /* prevent loop optimzation */ mb(); /* prevent loop optimzation */
tmpl->do_2(BENCH_SIZE, b1, b2); tmpl->do_2(BENCH_SIZE, b1, b2);
mb(); mb();
count++;
mb();
} }
diff = ktime_sub(ktime_get(), start); diff = ktime_sub(ktime_get(), start);
if (diff < min) if (diff < min)