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[MIPS] signal32: no need to save c0_status register in setup_sigcontext32()

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All the information in the MIPS c0_status register is priviledged.
Nothing that would constitute part of the thread context.

The one flag one could possibly argument about might be c0_status.fr
but none of the ABIs or tools or application software can make use
of it.

So for consistency with restore_sigcontext32(), which does not
restore c0_status register, this patch remove the saving part.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Franck Bui-Huu
2007-02-05 15:24:26 +01:00
committed by Ralf Baechle
parent 9432a9ba96
commit 6bfe966160
3 changed files with 2 additions and 4 deletions
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arch/mips/kernel/signal32.c
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@ -170,7 +170,6 @@ static int setup_sigcontext32(struct pt_regs *regs,
int i;
err |= __put_user(regs->cp0_epc, &sc->sc_pc);
err |= __put_user(regs->cp0_status, &sc->sc_status);
err |= __put_user(0, &sc->sc_regs[0]);
for (i = 1; i < 32; i++)