Re: [PATCH 2/2] : Add local_irq_restore in error handling code

From: Ralf Baechle
Date: Tue Jul 22 2008 - 13:10:29 EST

Hi Julia,

On Tue, Jul 22, 2008 at 06:44:48PM +0200, Julia Lawall wrote:

> From: Julia Lawall <julia@xxxxxxx>
> There is a call to local_irq_restore in the normal exit case, so it would
> seem that there should be one on an error return as well.
> The semantic patch that makes this change is as follows:
> (

Correctly spotted - but I decieded to go for below patch instead.



From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

[MIPS] tlb-r4k: Nuke broken paranoia error test.

Bug originally found and reported by Julia Lawall <julia@xxxxxxx>. I
decieded that the whole error check was mostly useless paranoia and should
be discarded. It would only ever trigger if r3k_have_wired_reg has a wrong

Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

diff --git a/arch/mips/mm/tlb-r3k.c b/arch/mips/mm/tlb-r3k.c
index a782549..f0cf46a 100644
--- a/arch/mips/mm/tlb-r3k.c
+++ b/arch/mips/mm/tlb-r3k.c
@@ -246,10 +246,6 @@ void __init add_wired_entry(unsigned long entrylo0, unsigned long entrylo1,
old_pagemask = read_c0_pagemask();
w = read_c0_wired();
write_c0_wired(w + 1);
- if (read_c0_wired() != w + 1) {
- printk("[tlbwired] No WIRED reg?\n");
- return;
- }
write_c0_index(w << 8);
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