lkml.org 
[lkml]   [2018]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 2/5] RISC-V: No need to pass scause as arg to do_IRQ()
Date
The scause is already part of pt_regs so no need to pass
scause as separate arg to do_IRQ().

Signed-off-by: Anup Patel <anup@brainfault.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 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 5532e7cedaec..c51c9b402e87 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -26,11 +26,11 @@
*/
#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;

- switch (cause & ~INTERRUPT_CAUSE_FLAG) {
+ switch (regs->scause & ~INTERRUPT_CAUSE_FLAG) {
case INTERRUPT_CAUSE_TIMER:
old_regs = set_irq_regs(regs);
irq_enter();
--
2.17.1
\
 
 \ /
  Last update: 2018-09-04 14:46    [W:0.200 / U:18.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site