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From: Nathan Chancellor <natechancellor@gmail.com>
To: Ariel Elior <Ariel.Elior@cavium.com>,
	everest-linux-l2@cavium.com,
	"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Nathan Chancellor <natechancellor@gmail.com>
Subject: [PATCH] qed: Avoid constant logical operation warning in qed_vf_pf_acquire
Date: Mon, 24 Sep 2018 15:17:03 -0700	[thread overview]
Message-ID: <20180924221703.26454-1-natechancellor@gmail.com> (raw)

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@gmail.com>
---
 drivers/net/ethernet/qlogic/qed/qed_vf.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index fcd8da08274f..be118d057b92 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -413,7 +413,6 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
 	}
 
 	if (!p_iov->b_pre_fp_hsi &&
-	    ETH_HSI_VER_MINOR &&
 	    (resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) {
 		DP_INFO(p_hwfn,
 			"PF is using older fastpath HSI; %02x.%02x is configured\n",
-- 
2.19.0

             reply	other threads:[~2018-09-24 22:17 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-24 22:17 Nathan Chancellor [this message]
2018-09-27  3:24 ` [PATCH] qed: Avoid constant logical operation warning in qed_vf_pf_acquire David Miller

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