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authorChen, Gong <gong.chen@linux.intel.com>2013-10-18 23:29:07 +0200
committerTony Luck <tony.luck@intel.com>2013-10-22 00:12:01 +0200
commit10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b (patch)
tree6450859ffdc4494f2211442dd411b7f189cf326d /drivers/edac/sb_edac.c
parentACPI, CPER: Update cper info (diff)
downloadlinux-10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b.tar.xz
linux-10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b.zip
bitops: Introduce a more generic BITMASK macro
GENMASK is used to create a contiguous bitmask([hi:lo]). It is implemented twice in current kernel. One is in EDAC driver, the other is in SiS/XGI FB driver. Move it to a more generic place for other usage. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/edac/sb_edac.c')
-rw-r--r--drivers/edac/sb_edac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index e04462b60756..88f60c5fecbc 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -50,7 +50,7 @@ static int probed;
* Get a bit field at register value <v>, from bit <lo> to bit <hi>
*/
#define GET_BITFIELD(v, lo, hi) \
- (((v) & ((1ULL << ((hi) - (lo) + 1)) - 1) << (lo)) >> (lo))
+ (((v) & GENMASK_ULL(hi, lo)) >> (lo))
/*
* sbridge Memory Controller Registers