adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2025-01-01 13:46:24 +00:00
Code Issues Projects Releases Packages Wiki Activity

MIPS: Fix sign-extension bug in 32-bit kernel on 32-bit hardware.

Browse source 
Probably nobody does arithmetic on cp0 register values so this has never
bitten.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2009-04-30 02:16:19 +02:00
parent 5c5dd1d291
commit 0b54352600
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
arch/mips/include/asm/mipsregs.h
View file

@ -728,8 +728,8 @@ do { \
".set\tmips64\n\t" \ ".set\tmips64\n\t" \
"dmfc0\t%M0, " #source "\n\t" \ "dmfc0\t%M0, " #source "\n\t" \
"dsll\t%L0, %M0, 32\n\t" \ "dsll\t%L0, %M0, 32\n\t" \
"dsrl\t%M0, %M0, 32\n\t" \ "dsra\t%M0, %M0, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \ "dsra\t%L0, %L0, 32\n\t" \
".set\tmips0" \ ".set\tmips0" \
: "=r" (__val)); \ : "=r" (__val)); \
else \ else \
@ -737,8 +737,8 @@ do { \
".set\tmips64\n\t" \ ".set\tmips64\n\t" \
"dmfc0\t%M0, " #source ", " #sel "\n\t" \ "dmfc0\t%M0, " #source ", " #sel "\n\t" \
"dsll\t%L0, %M0, 32\n\t" \ "dsll\t%L0, %M0, 32\n\t" \
"dsrl\t%M0, %M0, 32\n\t" \ "dsra\t%M0, %M0, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \ "dsra\t%L0, %L0, 32\n\t" \
".set\tmips0" \ ".set\tmips0" \
: "=r" (__val)); \ : "=r" (__val)); \
local_irq_restore(__flags); \ local_irq_restore(__flags); \