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authorIngo Molnar <mingo@elte.hu>2008-07-29 00:07:55 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-29 00:07:55 +0200
commitcb28a1bbdb4790378e7366d6c9ee1d2340b84f92 (patch)
tree316436f77dac75335fd2c3ef5f109e71606c50d3 /arch/powerpc/kernel/entry_64.S
parentb6d4f7e3ef25beb8c658c97867d98883e69dc544 (diff)
parentf934fb19ef34730263e6afc01e8ec27a8a71470f (diff)
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Merge branch 'linus' into core/generic-dma-coherent
Conflicts: arch/x86/Kconfig Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
-rw-r--r--arch/powerpc/kernel/entry_64.S10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index d736924..2d802e9 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -214,7 +214,12 @@ syscall_dotrace:
bl .save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_syscall_trace_enter
- ld r0,GPR0(r1) /* Restore original registers */
+ /*
+ * Restore argument registers possibly just changed.
+ * We use the return value of do_syscall_trace_enter
+ * for the call number to look up in the table (r0).
+ */
+ mr r0,r3
ld r3,GPR3(r1)
ld r4,GPR4(r1)
ld r5,GPR5(r1)
@@ -638,8 +643,7 @@ user_work:
b .ret_from_except_lite
1: bl .save_nvgprs
- li r3,0
- addi r4,r1,STACK_FRAME_OVERHEAD
+ addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_signal
b .ret_from_except