From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Julien Aube <julien_dpdk@jaube.fr>,
Harish Patil <harish.patil@cavium.com>
Subject: [PATCH 2/4] net/bnx2x: fix always true expression
Date: Tue, 12 Nov 2024 09:43:54 -0800 [thread overview]
Message-ID: <20241112174613.326565-3-stephen@networkplumber.org> (raw)
In-Reply-To: <20241112174613.326565-1-stephen@networkplumber.org>
Coverity spotted that the check to enable single interrupt
mode would evaluate as always true since:
The or condition sc->interrupt_mode != 2 || sc->interrupt_mode != 3
will always be true because sc->interrupt_mode cannot be equal to
two different values at the same time, so it must be not equal to
at least one of them.
Coverity issue: 362046
Fixes: 540a211084a7 ("bnx2x: driver core")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/bnx2x/bnx2x.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/bnx2x/bnx2x.c b/drivers/net/bnx2x/bnx2x.c
index 3153cc4d80..af31ac4604 100644
--- a/drivers/net/bnx2x/bnx2x.c
+++ b/drivers/net/bnx2x/bnx2x.c
@@ -11189,11 +11189,9 @@ static int bnx2x_init_hw_func(struct bnx2x_softc *sc)
/* Turn on a single ISR mode in IGU if driver is going to use
* INT#x or MSI
*/
- if ((sc->interrupt_mode != INTR_MODE_MSIX)
- || (sc->interrupt_mode != INTR_MODE_SINGLE_MSIX)) {
+ if (sc->interrupt_mode == INTR_MODE_INTX ||
+ sc->interrupt_mode == INTR_MODE_MSI)
pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN;
- }
-
/*
* Timers workaround bug: function init part.
* Need to wait 20msec after initializing ILT,
--
2.45.2
next prev parent reply other threads:[~2024-11-12 17:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-12 17:43 [PATCH 0/4] Coverity buf fixes for bnx2x Stephen Hemminger
2024-11-12 17:43 ` [PATCH 1/4] net/bnx2x: remove dead conditional Stephen Hemminger
2024-11-12 17:43 ` Stephen Hemminger [this message]
2024-11-12 17:43 ` [PATCH 3/4] net/bnx2x: fix possible infinite loop at startup Stephen Hemminger
2024-11-12 17:43 ` [PATCH 4/4] net/bnx2x: fix duplicate branch Stephen Hemminger
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