linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ryan Mallon <rmallon@gmail.com>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: linux-kernel@vger.kernel.org,
	Shreyas Bhatewara <sbhatewara@vmware.com>,
	"VMware, Inc." <pv-drivers@vmware.com>,
	netdev@vger.kernel.org
Subject: Re: [PATCH] vmxnet3: convert BUG_ON(true) into a simple BUG()
Date: Mon, 12 Nov 2012 09:27:39 +1100	[thread overview]
Message-ID: <50A0265B.8040209@gmail.com> (raw)
In-Reply-To: <1352406191-14303-1-git-send-email-sasha.levin@oracle.com>

On 09/11/12 07:23, Sasha Levin wrote:
> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
> ---
>  drivers/net/vmxnet3/vmxnet3_drv.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
> index 0ae1bcc..7e9622f 100644
> --- a/drivers/net/vmxnet3/vmxnet3_drv.c
> +++ b/drivers/net/vmxnet3/vmxnet3_drv.c
> @@ -1922,7 +1922,7 @@ vmxnet3_free_irqs(struct vmxnet3_adapter *adapter)
>  		free_irq(adapter->pdev->irq, adapter->netdev);
>  		break;
>  	default:
> -		BUG_ON(true);
> +		BUG();
>  	}
>  }

All of the BUG_ON tests in this function look like programming error
assertions. It looks like the worst that would happen is that some irqs
might not be properly released, not the sort of thing that is going to
make the system unstable if you don't bug.

Can't they just be replaced with (for example):

	if (WARN_ON(blah))
		return;

Or even just:

	netdev_err(adapter->netdev, "bad irq type %d for free\n",
			intr->type);

~Ryan


      parent reply	other threads:[~2012-11-11 22:27 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-08 20:23 [PATCH] vmxnet3: convert BUG_ON(true) into a simple BUG() Sasha Levin
2012-11-08 20:23 ` [PATCH] alpha: use BUG_ON where possible Sasha Levin
2012-11-08 21:42   ` Jiri Kosina
2012-11-09 16:23     ` Sasha Levin
2012-11-12 14:43       ` Jiri Kosina
2012-11-12 15:03         ` Sasha Levin
2012-11-08 20:23 ` [PATCH] ARM: gic: " Sasha Levin
2012-11-08 20:23 ` [PATCH] ARM: kprobes: " Sasha Levin
2012-11-09  9:26   ` Jon Medhurst (Tixy)
2012-11-08 20:23 ` [PATCH] ARM: EXYNOS: " Sasha Levin
2012-11-12 15:12   ` Maarten Lankhorst
2012-11-12 15:23     ` Russell King - ARM Linux
2012-11-12 15:52       ` Sasha Levin
2012-11-12 15:25     ` Sasha Levin
2012-11-08 20:23 ` [PATCH] ARM: integrator: " Sasha Levin
2012-11-12 20:44   ` Arnd Bergmann
2012-11-17 18:41     ` Linus Walleij
2012-11-08 20:23 ` [PATCH] ARM: OMAP1: " Sasha Levin
2012-11-12 23:21   ` Tony Lindgren
2012-11-08 20:23 ` [PATCH] ARM: dma: " Sasha Levin
2012-11-08 20:23 ` [PATCH] ARM: versatile: " Sasha Levin
2012-11-09  6:02 ` [PATCH] vmxnet3: convert BUG_ON(true) into a simple BUG() Shreyas Bhatewara
2012-11-09 22:03   ` David Miller
2012-11-11 22:27 ` Ryan Mallon [this message]

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=50A0265B.8040209@gmail.com \
    --to=rmallon@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=pv-drivers@vmware.com \
    --cc=sasha.levin@oracle.com \
    --cc=sbhatewara@vmware.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).