diff options
| author | David S. Miller <davem@davemloft.net> | 2008-12-02 19:50:27 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-02 19:50:27 -0800 |
| commit | aa2ba5f1082dc705745899584aac8416d710c056 (patch) | |
| tree | bde0bf4aff036c6bac19a0212194ae1092afb3c9 /arch/powerpc/kernel/entry_64.S | |
| parent | 68024541e2e5a8f35e281daaa5068a29e2a538a5 (diff) | |
| parent | f6f7b52e2f6149d2ee365717afff315b05720162 (diff) | |
| download | op-kernel-dev-aa2ba5f1082dc705745899584aac8416d710c056.zip op-kernel-dev-aa2ba5f1082dc705745899584aac8416d710c056.tar.gz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/ixgbe/ixgbe_main.c
drivers/net/smc91x.c
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index e6d5284..e0bcf93 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -57,12 +57,18 @@ system_call_common: beq- 1f ld r1,PACAKSAVE(r13) 1: std r10,0(r1) - crclr so std r11,_NIP(r1) std r12,_MSR(r1) std r0,GPR0(r1) std r10,GPR1(r1) ACCOUNT_CPU_USER_ENTRY(r10, r11) + /* + * This "crclr so" clears CR0.SO, which is the error indication on + * return from this system call. There must be no cmp instruction + * between it and the "mfcr r9" below, otherwise if XER.SO is set, + * CR0.SO will get set, causing all system calls to appear to fail. + */ + crclr so std r2,GPR2(r1) std r3,GPR3(r1) std r4,GPR4(r1) |
