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authorAnup Patel <anup@brainfault.org>2018-10-02 12:14:54 -0700
committerPalmer Dabbelt <palmer@sifive.com>2018-10-22 17:03:35 -0700
commit1ed4237ab616a05225e11d07bf42d5474deec905 (patch)
treeded02b031b4485ccb3372882850a16ebff139cf7 /arch/riscv
parent84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d (diff)
downloadlinux-1ed4237ab616a05225e11d07bf42d5474deec905.tar.bz2
RISC-V: No need to pass scause as arg to do_IRQ()
The scause is already part of pt_regs so no need to pass scause as separate arg to do_IRQ(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'arch/riscv')
-rw-r--r--arch/riscv/kernel/entry.S1
-rw-r--r--arch/riscv/kernel/irq.c4
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index fa2c08e3c05e..6eaacfa5b63d 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -168,7 +168,6 @@ ENTRY(handle_exception)
/* Handle interrupts */
move a0, sp /* pt_regs */
- move a1, s4 /* scause */
tail do_IRQ
1:
/* Exceptions run with interrupts enabled */
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index 0cfac48a1272..ca4593317e45 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -24,12 +24,12 @@
*/
#define INTERRUPT_CAUSE_FLAG (1UL << (__riscv_xlen - 1))
-asmlinkage void __irq_entry do_IRQ(struct pt_regs *regs, unsigned long cause)
+asmlinkage void __irq_entry do_IRQ(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
irq_enter();
- switch (cause & ~INTERRUPT_CAUSE_FLAG) {
+ switch (regs->scause & ~INTERRUPT_CAUSE_FLAG) {
case INTERRUPT_CAUSE_TIMER:
riscv_timer_interrupt();
break;