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RISC-V: Remove do_IRQ() function 

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>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Anup Patel 2020-06-01 14:45:42 +05:30 committed by Palmer Dabbelt
parent 033a65de7e
commit 24dc17005c
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GPG Key ID: 2E1319F35FBB1889
2 changed files with 3 additions and 7 deletions
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4
arch/riscv/kernel/entry.S
View File

@ -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

6
arch/riscv/kernel/irq.c
View File

@ -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();