Re: [PATCH 1/1] RDMA/rtrs: Fix the problem of variable not initialized fully

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On Tue, Sep 19, 2023 at 04:26:54PM +0800, Zhu Yanjun wrote:
> 
> 在 2023/9/19 16:17, Leon Romanovsky 写道:
> > On Tue, Sep 19, 2023 at 10:08:06AM +0800, Zhu Yanjun wrote:
> > > From: Zhu Yanjun <yanjun.zhu@xxxxxxxxx>
> > > 
> > > No functionality change. The variable which is not initialized fully
> > > will introduce potential risks.
> > Are you sure about not being initialized?
> 
> About this problem, I think we discussed it previously in RDMA maillist.
> 
> And at that time, IIRC, you shared a link with me. The link is as below.
> 
> https://www.ex-parrot.com/~chris/random/initialise.html
> 
> From what we discussed and the above link, I think it is not initialized
> fully.

I remember that discussion and it was about slightly different thing:
{} vs {0} in Linux kernel.

However I don't think that I sent you that link.
Anyway, let's take this patch as it is harmless.

Thanks

> 
> 
> Zhu Yanjun
> 
> > 
> > Thanks
> > 
> > > Signed-off-by: Zhu Yanjun <yanjun.zhu@xxxxxxxxx>
> > > ---
> > >   drivers/infiniband/ulp/rtrs/rtrs.c | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
> > > index 3696f367ff51..d80edfffd2e4 100644
> > > --- a/drivers/infiniband/ulp/rtrs/rtrs.c
> > > +++ b/drivers/infiniband/ulp/rtrs/rtrs.c
> > > @@ -255,7 +255,7 @@ static int create_cq(struct rtrs_con *con, int cq_vector, int nr_cqe,
> > >   static int create_qp(struct rtrs_con *con, struct ib_pd *pd,
> > >   		     u32 max_send_wr, u32 max_recv_wr, u32 max_sge)
> > >   {
> > > -	struct ib_qp_init_attr init_attr = {NULL};
> > > +	struct ib_qp_init_attr init_attr = {};
> > >   	struct rdma_cm_id *cm_id = con->cm_id;
> > >   	int ret;
> > > -- 
> > > 2.40.1
> > > 



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