path: root/arch
diff options
authorFranck Bui-Huu <fbuihuu@gmail.com>2007-02-05 15:24:26 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-02-10 22:38:47 +0000
commit6bfe96616062acb75c2460f01acc79236a8ba0e8 (patch)
tree115425ff5954516259ed2152c8e61f2a5ce527da /arch
parent9432a9ba96ea8d007341c4e7859d393bfd357c5a (diff)
[MIPS] signal32: no need to save c0_status register in setup_sigcontext32()
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>
Diffstat (limited to 'arch')
2 files changed, 0 insertions, 2 deletions
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index ea7df4b8da33..c0b089d47181 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -249,7 +249,6 @@ void output_sc_defines(void)
offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
offset("#define SC_PC ", struct sigcontext, sc_pc);
- offset("#define SC_STATUS ", struct sigcontext, sc_status);
offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir);
offset("#define SC_HI1 ", struct sigcontext, sc_hi1);
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 5d102efbdbea..0994d6e1d691 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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