From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 07/63] enic: fix build warning without CONFIG_CPUMASK_OFFSTACK
Date: Wed, 27 Mar 2019 14:22:27 -0400 [thread overview]
Message-ID: <20190327182323.18577-7-sashal@kernel.org> (raw)
In-Reply-To: <20190327182323.18577-1-sashal@kernel.org>
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 43d281662fdb46750d49417559b71069f435298d ]
The enic driver relies on the CONFIG_CPUMASK_OFFSTACK feature to
dynamically allocate a struct member, but this is normally intended for
local variables.
Building with clang, I get a warning for a few locations that check the
address of the cpumask_var_t:
drivers/net/ethernet/cisco/enic/enic_main.c:122:22: error: address of array 'enic->msix[i].affinity_mask' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
As far as I can tell, the code is still correct, as the truth value of
the pointer is what we need in this configuration. To get rid of
the warning, use cpumask_available() instead of checking the
pointer directly.
Fixes: 322cf7e3a4e8 ("enic: assign affinity hint to interrupts")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/cisco/enic/enic_main.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 9ef4caa4b84d..3c20d0dc9256 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -120,7 +120,7 @@ static void enic_init_affinity_hint(struct enic *enic)
for (i = 0; i < enic->intr_count; i++) {
if (enic_is_err_intr(enic, i) || enic_is_notify_intr(enic, i) ||
- (enic->msix[i].affinity_mask &&
+ (cpumask_available(enic->msix[i].affinity_mask) &&
!cpumask_empty(enic->msix[i].affinity_mask)))
continue;
if (zalloc_cpumask_var(&enic->msix[i].affinity_mask,
@@ -149,7 +149,7 @@ static void enic_set_affinity_hint(struct enic *enic)
for (i = 0; i < enic->intr_count; i++) {
if (enic_is_err_intr(enic, i) ||
enic_is_notify_intr(enic, i) ||
- !enic->msix[i].affinity_mask ||
+ !cpumask_available(enic->msix[i].affinity_mask) ||
cpumask_empty(enic->msix[i].affinity_mask))
continue;
err = irq_set_affinity_hint(enic->msix_entry[i].vector,
@@ -162,7 +162,7 @@ static void enic_set_affinity_hint(struct enic *enic)
for (i = 0; i < enic->wq_count; i++) {
int wq_intr = enic_msix_wq_intr(enic, i);
- if (enic->msix[wq_intr].affinity_mask &&
+ if (cpumask_available(enic->msix[wq_intr].affinity_mask) &&
!cpumask_empty(enic->msix[wq_intr].affinity_mask))
netif_set_xps_queue(enic->netdev,
enic->msix[wq_intr].affinity_mask,
--
2.19.1
next parent reply other threads:[~2019-03-27 18:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190327182323.18577-1-sashal@kernel.org>
2019-03-27 18:22 ` Sasha Levin [this message]
2019-03-27 18:22 ` [PATCH AUTOSEL 4.4 25/63] e1000e: Fix -Wformat-truncation warnings Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 44/63] e1000e: fix cyclic resets at link up with active tx Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 48/63] mt7601u: bump supported EEPROM version Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 54/63] Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 57/63] netfilter: physdev: relax br_netfilter dependency Sasha Levin
2019-03-27 18:23 ` [PATCH AUTOSEL 4.4 60/63] wlcore: Fix memory leak in case wl12xx_fetch_firmware failure Sasha Levin
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