From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Stephen M. Cameron" Subject: [PATCH 3/3] hpsa: use ioremap_nocache instead of ioremap Date: Thu, 26 Jul 2012 11:34:23 -0500 Message-ID: <20120726163422.25864.19285.stgit@beardog.cce.hp.com> References: <20120726162726.25864.49510.stgit@beardog.cce.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120726162726.25864.49510.stgit@beardog.cce.hp.com> Sender: linux-kernel-owner@vger.kernel.org To: james.bottomley@hansenpartnership.com Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, stephenmcameron@gmail.com, thenzl@redhat.com, akpm@linux-foundation.org, mikem@beardog.cce.hp.com List-Id: linux-scsi@vger.kernel.org From: Stephen M. Cameron I think ioremap() ends up being equivalent to ioremap_nocache by default, but we should signal our intent that these mappings should be non-cacheable. Signed-off-by: Stephen M. Cameron --- drivers/scsi/hpsa.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 415db96..5ed5859 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3337,7 +3337,8 @@ static void __iomem *remap_pci_mem(ulong base, ulong size) { ulong page_base = ((ulong) base) & PAGE_MASK; ulong page_offs = ((ulong) base) - page_base; - void __iomem *page_remapped = ioremap(page_base, page_offs + size); + void __iomem *page_remapped = ioremap_nocache(page_base, + page_offs + size); return page_remapped ? (page_remapped + page_offs) : NULL; }