lkml.org 
[lkml]   [2020]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v6 5/6] RISC-V: Remove do_IRQ() function
Date
The only thing do_IRQ() does is call handle_arch_irq function
pointer. We can very well call handle_arch_irq function pointer
directly from assembly and remove do_IRQ() function hence this
patch.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
---
arch/riscv/kernel/entry.S | 4 +++-
arch/riscv/kernel/irq.c | 6 ------
2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 56d071b2c0a1..cae7e6d4c7ef 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -106,7 +106,9 @@ _save_context:

/* Handle interrupts */
move a0, sp /* pt_regs */
- tail do_IRQ
+ la a1, handle_arch_irq
+ REG_L a1, (a1)
+ jr a1
1:
/*
* Exceptions run with interrupts enabled or disabled depending on the
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index eb8777642ce6..7207fa08d78f 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -16,12 +16,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
return 0;
}

-asmlinkage __visible void __irq_entry do_IRQ(struct pt_regs *regs)
-{
- if (handle_arch_irq)
- handle_arch_irq(regs);
-}
-
void __init init_IRQ(void)
{
irqchip_init();
--
2.25.1
\
 
 \ /
  Last update: 2020-05-30 12:09    [W:0.103 / U:3.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site