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authorMaciej W. Rozycki <macro@imgtec.com>2017-06-16 00:06:19 +0100
committerMoyster <oysterized@gmail.com>2017-11-06 15:19:57 +0100
commitc1b12b6c11a8013929bfaf8656b1a16b880ae3d9 (patch)
treed4f23f2f9b07e294b3db3c621431dbcf0d71f14d
parente0a8dfe7461a12a909208751023d61ad8e0c48c0 (diff)
MIPS: Actually decode JALX in `__compute_return_epc_for_insn'
commit a9db101b735a9d49295326ae41f610f6da62b08c upstream. Complement commit fb6883e5809c ("MIPS: microMIPS: Support handling of delay slots.") and actually decode the regular MIPS JALX major instruction opcode, the handling of which has been added with the said commit for EPC calculation in `__compute_return_epc_for_insn'. Fixes: fb6883e5809c ("MIPS: microMIPS: Support handling of delay slots.") Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # 3.9+ Patchwork: https://patchwork.linux-mips.org/patch/16394/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Willy Tarreau <w@1wt.eu>
-rw-r--r--arch/mips/kernel/branch.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index 925099628..63b942f61 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -297,6 +297,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
/*
* These are unconditional and in j_format.
*/
+ case jalx_op:
case jal_op:
regs->regs[31] = regs->cp0_epc + 8;
case j_op: