From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julia Lawall Date: Mon, 19 Aug 2013 12:07:54 +0000 Subject: Re: [PATCH 1/7] PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource Message-Id: List-Id: References: <1376911241-27720-1-git-send-email-Julia.Lawall@lip6.fr> <1376911241-27720-2-git-send-email-Julia.Lawall@lip6.fr> <20130819120249.GA5740@ulmo> In-Reply-To: <20130819120249.GA5740@ulmo> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Thierry Reding Cc: kernel-janitors@vger.kernel.org, Bjorn Helgaas , Stephen Warren , linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org On Mon, 19 Aug 2013, Thierry Reding wrote: > On Mon, Aug 19, 2013 at 01:20:35PM +0200, Julia Lawall wrote: > > From: Julia Lawall > > > > Use devm_ioremap_resource instead of devm_request_and_ioremap. > > > > This was done using the semantic patch > > scripts/coccinelle/api/devm_ioremap_resource.cocci > > > > Error-handling code was manually removed from the associated calls to > > platform_get_resource. > > > > Signed-off-by: Julia Lawall > > > > --- > > The first block of modified code is followed by a call to > > devm_request_mem_region for pcie->cs with no associated ioremap. Should > > ioremap be used in this case as well? > > No. The pcie->cs resource is 256 MiB so it's challenging to map it at > once. Furthermore it requires a non-linear mapping so we do it on > demand. OK, thanks for the explanation. Is the comment, though, a little misleading, since the mapping is not done here? /* request and remap configuration space */ julia