[added to the 4.1 stable tree] EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Jérémy Lefaure <jeremy.lefaure@xxxxxxxxxxxx>

This patch has been added to the  stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit e61555c29c28a4a3b6ba6207f4a0883ee236004d ]

The MTR_DRAM_WIDTH macro returns the data width. It is sometimes used
as if it returned a boolean true if the width if 8. Fix the tests where
MTR_DRAM_WIDTH is misused.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@xxxxxxxxxxxx>
Cc: linux-edac <linux-edac@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170309011809.8340-1-jeremy.lefaure@xxxxxxxxxxxx
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 drivers/edac/i5000_edac.c | 2 +-
 drivers/edac/i5400_edac.c | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index 72e07e3cf718..2a09be5f4f86 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1293,7 +1293,7 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
 			dimm->mtype = MEM_FB_DDR2;
 
 			/* ask what device type on this row */
-			if (MTR_DRAM_WIDTH(mtr))
+			if (MTR_DRAM_WIDTH(mtr) == 8)
 				dimm->dtype = DEV_X8;
 			else
 				dimm->dtype = DEV_X4;
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index 6ef6ad1ba16e..029dfe07b734 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -1207,13 +1207,14 @@ static int i5400_init_dimms(struct mem_ctl_info *mci)
 
 			dimm->nr_pages = size_mb << 8;
 			dimm->grain = 8;
-			dimm->dtype = MTR_DRAM_WIDTH(mtr) ? DEV_X8 : DEV_X4;
+			dimm->dtype = MTR_DRAM_WIDTH(mtr) == 8 ?
+				      DEV_X8 : DEV_X4;
 			dimm->mtype = MEM_FB_DDR2;
 			/*
 			 * The eccc mechanism is SDDC (aka SECC), with
 			 * is similar to Chipkill.
 			 */
-			dimm->edac_mode = MTR_DRAM_WIDTH(mtr) ?
+			dimm->edac_mode = MTR_DRAM_WIDTH(mtr) == 8 ?
 					  EDAC_S8ECD8ED : EDAC_S4ECD4ED;
 			ndimms++;
 		}
-- 
2.11.0




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]