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[PATCH 8/8] signal32: no need to save c0_status register in setup_sigcon

Subject: [PATCH 8/8] signal32: no need to save c0_status register in setup_sigcontext32()
From: Franck Bui-Huu <>
Date: Wed, 24 Jan 2007 15:12:11 +0100
Cc:, Franck Bui-Huu <>
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From: Franck Bui-Huu <>

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
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 <>
 arch/mips/kernel/signal32.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 5d102ef..0994d6e 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -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++)

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