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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-30 15:38:59 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-05-02 18:20:27 +0300 |
| commit | 642770dd96cb04e7cf8f7677e35cd528cda0a97b (patch) | |
| tree | 47edb9f2d1a6334e534de732f3a58261ba4dfe7e /arch/powerpc/kernel/head_32.h | |
| parent | f97dec21a306967edbc49ce46f3ecefa3cd16907 (diff) | |
| download | linux-642770dd96cb04e7cf8f7677e35cd528cda0a97b.tar.xz | |
powerpc/32: Enter exceptions with MSR_EE unset
All exceptions handlers know when to reenable interrupts, so
it is safer to enter all of them with MSR_EE unset, except
for syscalls.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[splited out from benh RFC patch]
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/head_32.h')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 7221418a883f..8881b6887841 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -127,12 +127,4 @@ label: EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL | MSR_EE, NOCOPY, transfer_to_handler, \ ret_from_except) -#define EXC_XFER_EE(n, hdlr) \ - EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, COPY_EE, transfer_to_handler_full, \ - ret_from_except_full) - -#define EXC_XFER_EE_LITE(n, hdlr) \ - EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, COPY_EE, transfer_to_handler, \ - ret_from_except) - #endif /* __HEAD_32_H__ */ |