linux-kernel - Re: [PATCH iproute2-rc 2/2] rdma: Fix the error of accessing string variable outside the lifecycle

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Date: Mon, 8 Jan 2024 09:25:00 -0800
From: Stephen Hemminger <stephen@...workplumber.org>
To: Andrea Claudi <aclaudi@...hat.com>
Cc: Junxian Huang <huangjunxian6@...ilicon.com>, jgg@...pe.ca,
 leon@...nel.org, dsahern@...il.com, Chengchang Tang
 <tangchengchang@...wei.com>, netdev@...r.kernel.org,
 linux-rdma@...r.kernel.org, linuxarm@...wei.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH iproute2-rc 2/2] rdma: Fix the error of accessing string
 variable outside the lifecycle

On Mon, 8 Jan 2024 17:10:04 +0100
Andrea Claudi <aclaudi@...hat.com> wrote:

> On Mon, Jan 08, 2024 at 09:28:52AM +0800, Junxian Huang wrote:
> > 
> > Hi all,
> > 
> > the first patch is replaced by Stephen's latest patches. Are there any
> > comments to this patch?
> > 
> > Thanks,
> > Junxian
> >
> > On 2023/12/29 14:52, Junxian Huang wrote:  
> > > From: wenglianfa <wenglianfa@...wei.com>
> > > 
> > > All these SPRINT_BUF(b) definitions are inside the 'if' block, but
> > > accessed outside the 'if' block through the pointers 'comm'. This
> > > leads to empty 'comm' attribute when querying resource information.
> > > So move the definitions to the beginning of the functions to extend
> > > their life cycle.
> > > 
> > > Before:
> > > $ rdma res show srq
> > > dev hns_0 srqn 0 type BASIC lqpn 18 pdn 5 pid 7775 comm
> > > 
> > > After:
> > > $ rdma res show srq
> > > dev hns_0 srqn 0 type BASIC lqpn 18 pdn 5 pid 7775 comm ib_send_bw
> > > 
> > > Fixes: 1808f002dfdd ("lib/fs: fix memory leak in get_task_name()")
> > > Signed-off-by: wenglianfa <wenglianfa@...wei.com>
> > > Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
> > > ---  
> 
> Hi Junxian,
> For future patches, you can have a faster feedback adding to cc the
> author of the original patch. In this case it's me, so here's my
> 
> Acked-by: Andrea Claudi <aclaudi@...hat.com>
> 

I just merged this one