Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1623664
| From | Christophe Leroy <christophe.leroy@c-s.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] powerpc/32: Remove redundant test in transfer_to_handler() |
| Date | 2017-04-14 15:40 +0200 |
| Message-ID | <tw9Ca-1Db-3@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
As stated in the comment on top of transfer_to_handler(), all callers set cr0.eq if the exception occurred in kernel mode (i.e. MSR:PR = 0) Therefore, it is not needed to do the test again Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- arch/powerpc/kernel/entry_32.S | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index a38600949f3a..0651a7438fa6 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -141,7 +141,6 @@ transfer_to_handler: stw r2,GPR2(r11) stw r12,_NIP(r11) stw r9,_MSR(r11) - andi. r2,r9,MSR_PR mfctr r12 mfspr r2,SPRN_XER stw r12,_CTR(r11) -- 2.12.0
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH] powerpc/32: Remove redundant test in transfer_to_handler() Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-14 15:40 +0200 Re: [PATCH] powerpc/32: Remove redundant test in transfer_to_handler() Christophe LEROY <christophe.leroy@c-s.fr> - 2017-04-18 13:30 +0200
csiph-web