From: Christoph Hellwig <hch@lst.de>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Arnd Bergmann <arnd@arndb.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Ard Biesheuvel <ardb@kernel.org>,
Alex Williamson <alex.williamson@redhat.com>,
Cornelia Huck <cohuck@redhat.com>
Subject: Re: [PATCH v1 1/5] memremap: Check for size parameter
Date: Sat, 16 Nov 2019 17:29:37 +0100 [thread overview]
Message-ID: <20191116162937.GA23951@lst.de> (raw)
In-Reply-To: <20191115180044.83659-1-andriy.shevchenko@linux.intel.com>
On Fri, Nov 15, 2019 at 08:00:40PM +0200, Andy Shevchenko wrote:
> There is no use of memremap() to be called with size = 0.
> Simple return NULL pointer and allow callers to drop this check.
Given that this really is an error condition, maybe a WARN_ON_ONCE
would fit here?
next prev parent reply other threads:[~2019-11-16 16:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 18:00 [PATCH v1 1/5] memremap: Check for size parameter Andy Shevchenko
2019-11-15 18:00 ` [PATCH v1 2/5] dma-mapping: Drop duplicate check for size parameter of memremap() Andy Shevchenko
2019-11-16 16:29 ` Christoph Hellwig
2019-11-15 18:00 ` [PATCH v1 3/5] ALSA: hda: " Andy Shevchenko
2019-11-15 18:00 ` [PATCH v1 4/5] efi/esrt: " Andy Shevchenko
2019-11-15 18:00 ` [PATCH v1 5/5] vfio/pci: " Andy Shevchenko
2019-11-15 22:52 ` Alex Williamson
2019-11-16 16:29 ` Christoph Hellwig [this message]
2020-04-15 14:58 ` [PATCH v1 1/5] memremap: Check for size parameter Andy Shevchenko
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