> -----Original Message----- > From: Intel-wired-lan <[email protected]> On Behalf Of > Loktionov, Aleksandr > Sent: Wednesday, March 13, 2024 1:35 PM > To: Paul Menzel <[email protected]> > Cc: Nguyen, Anthony L <[email protected]>; Kubalewski, Arkadiusz > <[email protected]>; [email protected]; Kitszel, > Przemyslaw <[email protected]>; [email protected] > Subject: Re: [Intel-wired-lan] [PATCH iwl-net v2] i40e: fix vf may be used > uninitialized in this function warning > > > > > -----Original Message----- > > From: Paul Menzel <[email protected]> > > Sent: Wednesday, March 13, 2024 11:58 AM > > To: Loktionov, Aleksandr <[email protected]> > > Cc: [email protected]; Nguyen, Anthony L > > <[email protected]>; [email protected]; Kitszel, > > Przemyslaw <[email protected]>; Kubalewski, Arkadiusz > > <[email protected]> > > Subject: Re: [Intel-wired-lan] [PATCH iwl-net v2] i40e: fix vf may be > > used uninitialized in this function warning > > > > Dear Aleksandr, > > > > > > Am 13.03.24 um 10:56 schrieb Aleksandr Loktionov: > > > To fix the regression introduced by commit 52424f974bc5, which > > causes > > > servers hang in very hard to reproduce conditions with resets > > races. > > > Using two sources for the information is the root cause. > > > In this function before the fix bumping v didn't mean bumping vf > > > pointer. But the code used this variables interchangeably, so > > staled > > > vf could point to different/not intended vf. > > > > > > Remove redundant "v" variable and iterate via single VF pointer > > across > > > whole function instead to guarantee VF pointer validity. > > > > > > Fixes: 52424f974bc5 ("i40e: Fix VF hang when reset is triggered > > on > > > another VF") > > > Signed-off-by: Aleksandr Loktionov > > <[email protected]> > > > Reviewed-by: Arkadiusz Kubalewski > > <[email protected]> > > > Reviewed-by: Przemek Kitszel <[email protected]> > > > --- > > > v1 -> v2: commit message change > > > > Thank you very much. No need to resend, but I find it also always > > useful to have the exact warning pasted in the commit message. > > > The warning is exactly "vf may be used uninitialized in this function" it's > already in the title. What you suggest me to do? > Thank you > > > […] > > > > > --- > > > .../ethernet/intel/i40e/i40e_virtchnl_pf.c | 34 +++++++++--- > > ------- > > > 1 file changed, 16 insertions(+), 18 deletions(-) > > > > Reviewed-by: Paul Menzel <[email protected]> > > > > > > Kind regards, > > > > Paul
Tested-by: Rafal Romanowski <[email protected]>
