From: Vipul Ashri <vipul.ashri@oracle.com>
To: dev@dpdk.org
Cc: chenbo.xia@intel.com, vipul.ashri@oracle.com,
edwin.leung@oracle.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH v3] net/virtio: fix wrong variable assignment in helper macro
Date: Thu, 13 Aug 2020 12:58:37 +0530 [thread overview]
Message-ID: <20200813072837.1468-1-vipul.ashri@oracle.com> (raw)
In-Reply-To: <20200812092306.1345-1-vipul.ashri@oracle.com>
Inside Macro ASSIGN_UNLESS_EQUAL(var, val), assignment to var is always
failing as assignment done using var_ having local scope only.
This leads to TX packets not going out and found broken due to cleanup
malfunctioning. This patch fixes the wrong variable assignment.
Fixes: 57f90f894588 ("net/virtio: reuse packed ring functions")
Cc: stable@dpdk.org
Signed-off-by: Vipul Ashri <vipul.ashri@oracle.com>
---
drivers/net/virtio/virtqueue.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 105a9c00c..20c95471e 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -607,10 +607,8 @@ virtqueue_notify(struct virtqueue *vq)
/* avoid write operation when necessary, to lessen cache issues */
#define ASSIGN_UNLESS_EQUAL(var, val) do { \
- typeof(var) var_ = (var); \
- typeof(val) val_ = (val); \
- if ((var_) != (val_)) \
- (var_) = (val_); \
+ if ((var) != (val)) \
+ (var) = (val); \
} while (0)
#define virtqueue_clear_net_hdr(hdr) do { \
--
2.28.0.windows.1
next prev parent reply other threads:[~2020-08-18 13:50 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-07 12:57 [dpdk-dev] [PATCH] Virtio TX: reverting a small change causing Virtio standard TX broken Vipul Ashri
2020-08-09 13:28 ` Vipul Ashri
2020-08-10 4:10 ` Xia, Chenbo
2020-08-10 19:59 ` [dpdk-dev] [PATCH v2] net/virtio: fix 57f90f8("net/virtio: reuse packed ring functions") Vipul Ashri
2020-08-11 1:39 ` Xia, Chenbo
2020-08-12 9:23 ` [dpdk-dev] [PATCH v2] Fixes: 57f90f894588("net/virtio: " Vipul Ashri
2020-08-12 12:00 ` Xia, Chenbo
2020-08-13 7:23 ` [dpdk-dev] FW: " Vipul Ashri
2020-08-13 7:27 ` chupenghong
2020-08-13 7:25 ` [dpdk-dev] [PATCH v2] net/virtio: fix wrong variable assignment in helper macro Vipul Ashri
2020-08-13 7:28 ` Vipul Ashri [this message]
2020-08-13 7:35 ` [dpdk-dev] [PATCH v3] " Xia, Chenbo
2020-08-19 1:25 ` Xia, Chenbo
2020-09-16 5:57 ` [dpdk-dev] [PATCH v4] " Vipul Ashri
2020-09-17 15:54 ` Andrew Rybchenko
2020-09-18 9:55 ` [dpdk-dev] [PATCH v5] " Vipul Ashri
2020-09-18 12:22 ` Maxime Coquelin
2020-09-18 12:30 ` Maxime Coquelin
2020-08-13 16:22 ` [dpdk-dev] [PATCH v3] " Vipul Ashri
2020-08-14 1:25 ` Xia, Chenbo
2020-08-14 5:23 ` Vipul Ashri
2020-08-18 18:45 ` Ferruh Yigit
2020-08-18 20:46 ` Vipul Ashri
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