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From: Dan Williams <dan.j.williams@intel.com>
To: tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com
Cc: linux-arch@vger.kernel.org, toshi.kani@hp.com,
	linux-nvdimm@ml01.01.org, mcgrof@suse.com,
	linux-kernel@vger.kernel.org, Mike Waychison <mikew@google.com>,
	rmk+kernel@arm.linux.org.uk, hch@lst.de,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 12/24] memconsole: fix __iomem mishandling, switch to memremap
Date: Thu, 30 Jul 2015 12:54:45 -0400	[thread overview]
Message-ID: <20150730165445.33962.95437.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <20150730165155.33962.64121.stgit@dwillia2-desk3.amr.corp.intel.com>

The memconsole driver is not using proper accessors for __iomem.  Switch
to memremap to fix this issue, and this also prepares the driver for the
removal of ioremap_cache.

Cc: Mike Waychison <mikew@google.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/firmware/google/memconsole.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
index 2f569aaed4c7..fd5041716860 100644
--- a/drivers/firmware/google/memconsole.c
+++ b/drivers/firmware/google/memconsole.c
@@ -52,14 +52,15 @@ static ssize_t memconsole_read(struct file *filp, struct kobject *kobp,
 	char *memconsole;
 	ssize_t ret;
 
-	memconsole = ioremap_cache(memconsole_baseaddr, memconsole_length);
+	memconsole = memremap(memconsole_baseaddr, memconsole_length,
+			MEMREMAP_WB);
 	if (!memconsole) {
-		pr_err("memconsole: ioremap_cache failed\n");
+		pr_err("memconsole: memremap failed\n");
 		return -ENOMEM;
 	}
 	ret = memory_read_from_buffer(buf, count, &pos, memconsole,
 				      memconsole_length);
-	iounmap(memconsole);
+	memunmap(memconsole);
 	return ret;
 }
 


  parent reply	other threads:[~2015-07-30 17:00 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-30 16:53 [PATCH v3 00/24] replace ioremap_{cache|wt} with memremap Dan Williams
2015-07-30 16:53 ` [PATCH v3 01/24] mm: enhance region_is_ram() to region_intersects() Dan Williams
2015-07-30 20:42   ` Luis R. Rodriguez
2015-07-30 20:44     ` Dan Williams
2015-07-30 20:54       ` Luis R. Rodriguez
2015-07-30 20:59         ` Dan Williams
2015-07-30 21:10           ` Luis R. Rodriguez
2015-07-30 20:58   ` Luis R. Rodriguez
2015-07-30 16:53 ` [PATCH v3 02/24] arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead Dan Williams
2015-07-30 16:53 ` [PATCH v3 03/24] cleanup IORESOURCE_CACHEABLE vs ioremap() Dan Williams
2015-07-30 16:54 ` [PATCH v3 04/24] intel_iommu: fix leaked ioremap mapping Dan Williams
2015-08-03 14:26   ` Joerg Roedel
2015-07-30 16:54 ` [PATCH v3 05/24] arch: introduce memremap() Dan Williams
2015-07-30 21:02   ` Luis R. Rodriguez
2015-07-30 21:11     ` Dan Williams
2015-07-30 16:54 ` [PATCH v3 06/24] arm: switch from ioremap_cache to memremap Dan Williams
2015-07-30 16:54 ` [PATCH v3 07/24] x86: " Dan Williams
2015-07-30 16:54 ` [PATCH v3 08/24] gma500: switch from acpi_os_ioremap " Dan Williams
2015-07-30 16:54 ` [PATCH v3 09/24] i915: " Dan Williams
2015-07-30 16:54 ` [PATCH v3 10/24] acpi: switch from ioremap_cache " Dan Williams
2015-07-30 16:54 ` [PATCH v3 11/24] toshiba laptop: replace ioremap_cache with ioremap Dan Williams
2015-07-30 16:54 ` Dan Williams [this message]
2015-07-30 16:54 ` [PATCH v3 13/24] visorbus: switch from ioremap_cache to memremap Dan Williams
2015-08-06  0:27   ` Greg Kroah-Hartman
2015-07-30 16:54 ` [PATCH v3 14/24] intel-iommu: " Dan Williams
2015-07-30 16:55 ` [PATCH v3 15/24] libnvdimm, pmem: push call to ioremap_cache out of line Dan Williams
2015-07-30 16:55 ` [PATCH v3 16/24] pxa2xx-flash: switch from ioremap_cache to memremap Dan Williams
2015-07-30 16:55 ` [PATCH v3 17/24] sfi: " Dan Williams
2015-07-30 16:55 ` [PATCH v3 18/24] fbdev: switch from ioremap_wt " Dan Williams
2015-07-30 16:55 ` [PATCH v3 19/24] pmem: " Dan Williams
2015-07-30 16:55 ` [PATCH v3 20/24] arch: kill ioremap_cached() Dan Williams
2015-07-30 16:55 ` [PATCH v3 21/24] arch: kill ioremap_fullcache() Dan Williams
2015-07-30 16:55 ` [PATCH v3 22/24] arch: remove ioremap_cache, replace with arch_memremap Dan Williams
2015-07-30 16:55 ` [PATCH v3 23/24] arch: remove ioremap_wt, optionally " Dan Williams
2015-07-30 16:55 ` [PATCH v3 24/24] pmem: convert to generic memremap Dan Williams
2015-08-03 17:21   ` Ross Zwisler
2015-08-03 18:01     ` Dan Williams
2015-08-04 16:53       ` Ross Zwisler

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