lkml.org 
[lkml]   [2018]   [Feb]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/4] Staging: ks7010: hostif: Fix multiple use of arguments in ps_confirm_wait_inc() macro.
Date
Use GCC extensions to prevent macro arguments from accidentally being evaluated
multiple times when the macro is called.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
---
drivers/staging/ks7010/ks_hostif.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
index 30c9592b3a00..92035e8ac843 100644
--- a/drivers/staging/ks7010/ks_hostif.c
+++ b/drivers/staging/ks7010/ks_hostif.c
@@ -1306,11 +1306,10 @@ int hostif_data_request(struct ks_wlan_private *priv, struct sk_buff *skb)
return ret;
}

-#define ps_confirm_wait_inc(priv) \
- do { \
- if (atomic_read(&priv->psstatus.status) > PS_ACTIVE_SET) \
- atomic_inc(&priv->psstatus.confirm_wait); \
- } while (0)
+#define ps_confirm_wait_inc(priv) \
+ ({ typeof(priv) priv_ = (priv); \
+ if (atomic_read(&priv_->psstatus.status) > PS_ACTIVE_SET) \
+ atomic_inc(&priv_->psstatus.confirm_wait); })

static
void hostif_mib_get_request(struct ks_wlan_private *priv,
--
2.16.1
\
 
 \ /
  Last update: 2018-02-17 03:26    [W:0.073 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site