Re: [PATCH] qed: Avoid constant logical operation warning in qed_vf_pf_acquire
From: David Miller
Date: Wed Sep 26 2018 - 23:24:56 EST
From: Nathan Chancellor <natechancellor@xxxxxxxxx>
Date: Mon, 24 Sep 2018 15:17:03 -0700
> Clang warns when a constant is used in a boolean context as it thinks a
> bitwise operation may have been intended.
>
> drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: warning: use of logical
> '&&' with constant operand [-Wconstant-logical-operand]
> if (!p_iov->b_pre_fp_hsi &&
> ^
> drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: note: use '&' for a
> bitwise operation
> if (!p_iov->b_pre_fp_hsi &&
> ^~
> &
> drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: note: remove constant
> to silence this warning
> if (!p_iov->b_pre_fp_hsi &&
> ~^~
> 1 warning generated.
>
> This has been here since commit 1fe614d10f45 ("qed: Relax VF firmware
> requirements") and I am not entirely sure why since 0 isn't a special
> case. Just remove the statement causing Clang to warn since it isn't
> required.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/126
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Applied.