linux-kernel - Re: [PATCH 3/3] staging: androind: Convert BUG() to WARN()

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Date:   Sun, 16 Aug 2020 20:43:40 +0300
From:   Tomer Samara <tomersamara98@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, Todd Kjos <tkjos@...roid.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Riley Andrews <riandrews@...roid.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Hridya Valsaraju <hridya@...gle.com>,
        Arve Hjønnevåg <arve@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Laura Abbott <labbott@...hat.com>,
        Martijn Coenen <maco@...roid.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian Brauner <christian@...uner.io>
Subject: Re: [PATCH 3/3] staging: androind: Convert BUG() to WARN()

On Sun, Aug 16, 2020 at 10:34:50AM -0700, Randy Dunlap wrote:
> On 8/16/20 10:22 AM, Tomer Samara wrote:
> > replace BUG() with WARN() at ion_sytem_heap.c, this
> > fix the following checkpatch issue:
> > Avoid crashing the kernel - try using WARN_ON &
> > recovery code ratherthan BUG() or BUG_ON().
> > 
> > Signed-off-by: Tomer Samara <tomersamara98@...il.com>
> > ---
> >  drivers/staging/android/ion/ion_system_heap.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
> > index eac0632ab4e8..37065a59ca69 100644
> > --- a/drivers/staging/android/ion/ion_system_heap.c
> > +++ b/drivers/staging/android/ion/ion_system_heap.c
> > @@ -30,7 +30,8 @@ static int order_to_index(unsigned int order)
> >  	for (i = 0; i < NUM_ORDERS; i++)
> >  		if (order == orders[i])
> >  			return i;
> > -	BUG();
> > +
> > +	WARN(1, "%s: Did not found index to order %d", __FUNCTION__, order);
> >  	return -1;
> >  }
> 
> Hi,
> Did you look at what happens when order_to_index() returns -1
> to its callers?
> 
> 
> Also: fix spelling in Subjects: android and BUG/BUG_ON
> 
> -- 
> ~Randy
> 

Hi,
yes I've made a patch for that too but it seems I forgot to
include him in the patch set.
I will send new version for this patch set soon.

Thanks