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From: Vipul Ashri <vipul.ashri@oracle.com>
To: "Xia, Chenbo" <chenbo.xia@intel.com>,
	dev@dpdk.org, stable@dpdk.org, "Wang,
	Zhihong" <zhihong.wang@intel.com>,
	maxime.coquelin@redhat.com
Cc: Edwin Leung <edwin.leung@oracle.com>
Subject: Re: [dpdk-dev] [PATCH v3] net/virtio: fix wrong variable assignment in helper macro
Date: Fri, 14 Aug 2020 05:23:57 +0000 (UTC)
Message-ID: <f51f3bac-3fdc-4b7d-ae01-29f6c0d82bf0@default> (raw)
In-Reply-To: <MN2PR11MB40634F78149D1491BFC709A69C400@MN2PR11MB4063.namprd11.prod.outlook.com>

Hi All

I tried twice uploading this same patch but it is still not listed under http://patches.dpdk.org/project/dpdk/list/.
Please let me know if I am missing something and required to do some additional steps to submit my patch.

Thanks to Xia  for reviewing this code!

Regards
Vipul

-----Original Message-----
From: Xia, Chenbo [mailto:chenbo.xia@intel.com] 
Sent: Friday, 14 August, 2020 6:56
To: Vipul Ashri <vipul.ashri@oracle.com>; dev@dpdk.org
Cc: Edwin Leung <edwin.leung@oracle.com>; stable@dpdk.org; Wang, Zhihong <zhihong.wang@intel.com>; maxime.coquelin@redhat.com
Subject: RE: [PATCH v3] net/virtio: fix wrong variable assignment in helper macro


> -----Original Message-----
> From: Vipul Ashri <vipul.ashri@oracle.com>
> Sent: Friday, August 14, 2020 12:22 AM
> To: dev@dpdk.org
> Cc: Xia, Chenbo <chenbo.xia@intel.com>; vipul.ashri@oracle.com; 
> edwin.leung@oracle.com; stable@dpdk.org; Wang, Zhihong 
> <zhihong.wang@intel.com>; maxime.coquelin@redhat.com
> Subject: [PATCH v3] net/virtio: fix wrong variable assignment in 
> helper macro
> 
> 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

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

  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     ` [dpdk-dev] [PATCH v3] " Vipul Ashri
2020-08-13  7:35       ` 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 [this message]
2020-08-18 18:45       ` Ferruh Yigit
2020-08-18 20:46         ` Vipul Ashri

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