linux-kernel - Re: [PATCH v2 3/4] staging: android: Convert BUG to WARN

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Date:   Tue, 18 Aug 2020 16:11:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Tomer Samara <tomersamara98@...il.com>
Cc:     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 v2 3/4] staging: android: Convert BUG to WARN

On Sun, Aug 16, 2020 at 10:30:10PM +0300, 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);

Same question as before, I think this didn't really change anything :(