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Message-Id: <1536863825-66808-2-git-send-email-atish.patra@wdc.com>
Date: Thu, 13 Sep 2018 11:36:54 -0700
From: Atish Patra <atish.patra@....com>
To: palmer@...ive.com, linux-riscv@...ts.infradead.org,
hch@...radead.org, anup@...infault.org
Cc: mark.rutland@....com, atish.patra@....com, tglx@...utronix.de,
linux-kernel@...r.kernel.org, Damien.LeMoal@....com,
marc.zyngier@....com, jeremy.linton@....com,
gregkh@...uxfoundation.org, jason@...edaemon.net,
catalin.marinas@....com, dmitriy@...-tech.org,
ard.biesheuvel@...aro.org, schwab@...ux-m68k.org
Subject: [PATCH v5 01/12] RISC-V: No need to pass scause as arg to do_IRQ()
From: Anup Patel <anup@...infault.org>
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@....de>
Signed-off-by: Anup Patel <anup@...infault.org>
---
arch/riscv/kernel/entry.S | 1 -
arch/riscv/kernel/irq.c | 4 ++--
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index fa2c08e3..6eaacfa5 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 0cfac48a..ca459331 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;
--
2.7.4
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