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s390/qdio: remove always-true condition

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buf_in_between() gets passed q->u.in.ack_start as 'bufnr' parameter.

The ack_start always ranges between 0 and QDIO_MAX_BUFFERS_PER_Q - 1,
so the subsequent check will always return true. Remove it.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Julian Wiedmann 2020-04-21 17:20:00 +02:00 committed by Vasily Gorbik
parent 9b7012dfc3
commit 19d4c761c1
1 changed files with 1 additions and 2 deletions
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3
drivers/s390/cio/qdio_main.c
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@ -1450,8 +1450,7 @@ static inline int buf_in_between(int bufnr, int start, int count)
}
/* wrap-around case */
if ((bufnr >= start && bufnr <= QDIO_MAX_BUFFERS_PER_Q) ||
(bufnr < end))
if (bufnr >= start || bufnr < end)
return 1;
else
return 0;