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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-02-08 16:10:31 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-02-11 13:35:11 +0100 |
| commit | c01b916658150e98f00a4981750c37a3224c8735 (patch) | |
| tree | 11b450568bfe55c278000723e75aabc7c091e1ba /arch/powerpc | |
| parent | powerpc/syscall: Save r3 in regs->orig_r3 (diff) | |
| download | linux-c01b916658150e98f00a4981750c37a3224c8735.tar.xz linux-c01b916658150e98f00a4981750c37a3224c8735.zip | |
powerpc/syscall: Change condition to check MSR_RI
In system_call_exception(), MSR_RI also needs to be checked on 8xx.
Only booke and 40x doesn't have MSR_RI.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/67820fada8dd6a8fe9d7b666f175d4cc9d8de87e.1612796617.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/interrupt.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c index 1a2dec49f811..107ec39f05cb 100644 --- a/arch/powerpc/kernel/interrupt.c +++ b/arch/powerpc/kernel/interrupt.c @@ -39,7 +39,7 @@ notrace long system_call_exception(long r3, long r4, long r5, trace_hardirqs_off(); /* finish reconciling */ - if (IS_ENABLED(CONFIG_PPC_BOOK3S)) + if (!IS_ENABLED(CONFIG_BOOKE) && !IS_ENABLED(CONFIG_40x)) BUG_ON(!(regs->msr & MSR_RI)); BUG_ON(!(regs->msr & MSR_PR)); BUG_ON(!FULL_REGS(regs)); @@ -338,7 +338,7 @@ notrace unsigned long interrupt_exit_user_prepare(struct pt_regs *regs, unsigned unsigned long flags; unsigned long ret = 0; - if (IS_ENABLED(CONFIG_PPC_BOOK3S)) + if (!IS_ENABLED(CONFIG_BOOKE) && !IS_ENABLED(CONFIG_40x)) BUG_ON(!(regs->msr & MSR_RI)); BUG_ON(!(regs->msr & MSR_PR)); BUG_ON(!FULL_REGS(regs)); @@ -436,7 +436,8 @@ notrace unsigned long interrupt_exit_kernel_prepare(struct pt_regs *regs, unsign unsigned long amr; #endif - if (IS_ENABLED(CONFIG_PPC_BOOK3S) && unlikely(!(regs->msr & MSR_RI))) + if (!IS_ENABLED(CONFIG_BOOKE) && !IS_ENABLED(CONFIG_40x) && + unlikely(!(regs->msr & MSR_RI))) unrecoverable_exception(regs); BUG_ON(regs->msr & MSR_PR); BUG_ON(!FULL_REGS(regs)); |