linux-kernel - Re: [PATCH 0/4] scsi: qla2xxx: Convert timers to use timer

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Date:   Mon, 6 Nov 2017 00:18:50 +0000
From:   Bart Van Assche <Bart.VanAssche@....com>
To:     "keescook@...omium.org" <keescook@...omium.org>,
        "Himanshu.Madhani@...ium.com" <Himanshu.Madhani@...ium.com>
CC:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "qla2xxx-upstream@...ium.com" <qla2xxx-upstream@...ium.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>
Subject: Re: [PATCH 0/4] scsi: qla2xxx: Convert timers to use timer_setup()

On Wed, 2017-11-01 at 19:18 +0000, Madhani, Himanshu wrote:
> Hi Kees, 
> 
> > On Nov 1, 2017, at 11:46 AM, Kees Cook <keescook@...omium.org> wrote:
> > 
> > On Tue, Oct 31, 2017 at 12:13 PM, Kees Cook <keescook@...omium.org> wrote:
> > > This breaks out the logical steps to convert the qla2xxx timers:
> > > 
> > > 1) init_timer() -> setup_timer()
> > > 2) refactor qla2x00_start_timer() to not pass callback as argument
> > > 3) qla2x00_timer() to use timer_setup()
> > > 4) qla2x00_sp_timeout() to use timer_setup()
> > > 
> > > The resulting diff is identical to the patch that appears to lock up
> > > the driver. This should help identify which step causes this behavior.
> > 
> > Hi, just curious if there's been any progress on debugging the issue
> > you saw with this series?
> 
> Sorry for delay. I will test this series later today and post update. 

Hello Himanshu and Kees,

The qla2xxx driver does not crash if apply these four patches on kernel
v4.14-rc8 and load the qla2xxx driver on my test setup. Point-to-point
mode seems broken again but I don't think that's related to this patch
series.

Bart.