All of lore.kernel.org
 help / color / mirror / Atom feed
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Tomer Samara <tomersamara98@gmail.com>
Cc: devel@driverdev.osuosl.org, "Todd Kjos" <tkjos@android.com>,
	"Suren Baghdasaryan" <surenb@google.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	"Hridya Valsaraju" <hridya@google.com>,
	"Riley Andrews" <riandrews@android.com>,
	"Arve Hjønnevåg" <arve@android.com>,
	"Joel Fernandes" <joel@joelfernandes.org>,
	"Laura Abbott" <labbott@redhat.com>,
	"Martijn Coenen" <maco@android.com>,
	"Christian Brauner" <christian@brauner.io>
Subject: Re: [PATCH v2 1/4] staging: android: Replace BUG_ON with WARN_ON
Date: Tue, 18 Aug 2020 16:27:07 +0200	[thread overview]
Message-ID: <20200818142707.GA626703@kroah.com> (raw)
In-Reply-To: <20200818141940.GA357037@tsnow>

On Tue, Aug 18, 2020 at 05:19:40PM +0300, Tomer Samara wrote:
> On Tue, Aug 18, 2020 at 04:11:06PM +0200, Greg Kroah-Hartman wrote:
> > On Sun, Aug 16, 2020 at 10:23:25PM +0300, Tomer Samara wrote:
> > > BUG_ON() is replaced with WARN_ON at ion_page_pool.c
> > 
> > Why?
> > 
> > > Fixes the following issue:
> > > Avoid crashing the kernel - try using WARN_ON & recovery code ratherthan BUG() or BUG_ON().
> > 
> > Ideally you can get rid of WARN_ON() too, right?
> > 
> > Many systems run in panic-on-warn mode, so this really does not change
> > anything.  Try fixing this up properly to not crash at all.
> > 
> You mean by that to just remove the WARN_ON and leave the condition the
> same?

Or fix the problem that could ever cause this check to fire.

thanks,

greg k-h
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Tomer Samara <tomersamara98@gmail.com>
Cc: devel@driverdev.osuosl.org, "Todd Kjos" <tkjos@android.com>,
	"Martijn Coenen" <maco@android.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	"Joel Fernandes" <joel@joelfernandes.org>,
	"Riley Andrews" <riandrews@android.com>,
	"Arve Hjønnevåg" <arve@android.com>,
	"Hridya Valsaraju" <hridya@google.com>,
	"Laura Abbott" <labbott@redhat.com>,
	"Suren Baghdasaryan" <surenb@google.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Christian Brauner" <christian@brauner.io>
Subject: Re: [PATCH v2 1/4] staging: android: Replace BUG_ON with WARN_ON
Date: Tue, 18 Aug 2020 16:27:07 +0200	[thread overview]
Message-ID: <20200818142707.GA626703@kroah.com> (raw)
In-Reply-To: <20200818141940.GA357037@tsnow>

On Tue, Aug 18, 2020 at 05:19:40PM +0300, Tomer Samara wrote:
> On Tue, Aug 18, 2020 at 04:11:06PM +0200, Greg Kroah-Hartman wrote:
> > On Sun, Aug 16, 2020 at 10:23:25PM +0300, Tomer Samara wrote:
> > > BUG_ON() is replaced with WARN_ON at ion_page_pool.c
> > 
> > Why?
> > 
> > > Fixes the following issue:
> > > Avoid crashing the kernel - try using WARN_ON & recovery code ratherthan BUG() or BUG_ON().
> > 
> > Ideally you can get rid of WARN_ON() too, right?
> > 
> > Many systems run in panic-on-warn mode, so this really does not change
> > anything.  Try fixing this up properly to not crash at all.
> > 
> You mean by that to just remove the WARN_ON and leave the condition the
> same?

Or fix the problem that could ever cause this check to fire.

thanks,

greg k-h

  reply	other threads:[~2020-08-18 14:26 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-16 18:40 [PATCH v2 0/4] Replace BUG/BUG_ON to WARN/WARN_ON Tomer Samara
2020-08-16 18:40 ` Tomer Samara
2020-08-16 19:23 ` [PATCH v2 1/4] staging: android: Replace BUG_ON with WARN_ON Tomer Samara
2020-08-16 19:23   ` Tomer Samara
2020-08-18 14:11   ` Greg Kroah-Hartman
2020-08-18 14:11     ` Greg Kroah-Hartman
2020-08-18 14:19     ` Tomer Samara
2020-08-18 14:19       ` Tomer Samara
2020-08-18 14:27       ` Greg Kroah-Hartman [this message]
2020-08-18 14:27         ` Greg Kroah-Hartman
2020-08-16 19:24 ` [PATCH v2 2/4] staging: android: Add error handling to ion_page_pool_shrink Tomer Samara
2020-08-16 19:24   ` Tomer Samara
2020-08-18 14:10   ` Greg Kroah-Hartman
2020-08-18 14:10     ` Greg Kroah-Hartman
2020-08-16 19:30 ` [PATCH v2 3/4] staging: android: Convert BUG to WARN Tomer Samara
2020-08-16 19:30   ` Tomer Samara
2020-08-18 14:11   ` Greg Kroah-Hartman
2020-08-18 14:11     ` Greg Kroah-Hartman
2020-08-16 19:31 ` [PATCH v2 4/4] staging: android: Add error handling to order_to_index callers Tomer Samara
2020-08-16 19:31   ` Tomer Samara
2020-08-18 14:12   ` Greg Kroah-Hartman
2020-08-18 14:12     ` Greg Kroah-Hartman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200818142707.GA626703@kroah.com \
    --to=gregkh@linuxfoundation.org \
    --cc=arve@android.com \
    --cc=christian@brauner.io \
    --cc=devel@driverdev.osuosl.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=hridya@google.com \
    --cc=joel@joelfernandes.org \
    --cc=labbott@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maco@android.com \
    --cc=riandrews@android.com \
    --cc=surenb@google.com \
    --cc=tkjos@android.com \
    --cc=tomersamara98@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.