Re: [patch V9 21/39] x86/irq: Convey vector as argument and not in ptregs

[Thomas Gleixner]

Thomas Gleixner <t...@linutronix.de> writes:
> +     .align 8
> +SYM_CODE_START(irq_entries_start)
> +    vector=FIRST_EXTERNAL_VECTOR
> +    pos = .
> +    .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
> +     UNWIND_HINT_IRET_REGS
> +     .byte   0x6a, vector
> +     jmp     common_interrupt
> +     .nops (pos + 8) - .

Boris pointed out that .nops requires binutils >=2.31 ... Sigh!

The below delta patch works for the purpose.

Thanks,

        tglx

--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -475,7 +475,9 @@ SYM_CODE_START(irq_entries_start)
        UNWIND_HINT_IRET_REGS
        .byte   0x6a, vector
        jmp     asm_common_interrupt
-       .nops (pos + 8) - .
+       nop
+       /* Ensure that the above is 8 bytes max */
+       . = pos + 8
     pos=pos+8
     vector=vector+1
     .endr
@@ -490,7 +492,9 @@ SYM_CODE_START(spurious_entries_start)
        UNWIND_HINT_IRET_REGS
        .byte   0x6a, vector
        jmp     asm_spurious_interrupt
-       .nops (pos + 8) - .
+       nop
+       /* Ensure that the above is 8 bytes max */
+       . = pos + 8
     pos=pos+8
     vector=vector+1
     .endr