| commit | 1c1cb5756a8d296bbc33fc844f97048dc09ee172 | |
| author | David S. Miller <davem@davemloft.net> | |
| Thu, 10 May 2012 18:00:46 +0000 (10 11:00 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Mon, 21 May 2012 16:40:01 +0000 (21 09:40 -0700) | ||
| tree | f2b9110ef1391ab7923c17a41c7b7024d98a8b40 | treesnapshot (tar.gz zip) |
| parent | 6f6f21eceec3a60d2066bb3b5e31dc14f9168fa7 | commitdiff |
sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
[ Upstream commit a5a737e090e25981e99d69f01400e3a80356581c ]
%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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit a5a737e090e25981e99d69f01400e3a80356581c ]
%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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| arch/sparc/kernel/central.c | diffblobblamehistory | |
| arch/sparc/mm/ultra.S | diffblobblamehistory |