projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: bc46f93) | patch
sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
authorDavid S. Miller <davem@davemloft.net>
Thu, 10 May 2012 18:00:46 +0000 (11:00 -0700)
committerDavid S. Miller <davem@davemloft.net>
Thu, 10 May 2012 18:00:46 +0000 (11:00 -0700)
commita5a737e090e25981e99d69f01400e3a80356581c
tree800716c007575b1c316299300e3316d0d94ed243tree | snapshot (tar.gz zip)
parentbc46f9375a286d05f84a9464efc2b7f1f5614ff4commit | diff
sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().

%g2 is meant to hold the CPUID number throughout this routine, since
at the very beginning, and at the very end, we use %g2 to calculate
indexes into per-cpu arrays.

However we erroneously clobber it in order to hold the %cwp register
value mid-stream.

Fix this code to use %g3 for the %cwp read and related calulcations
instead.

Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/kernel/central.c diff | blob | blame | history
arch/sparc/mm/ultra.S diff | blob | blame | history