On Fri, May 03, 2024 at 10:11:21AM +0200, Arnd Bergmann wrote:
> diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
> index 7fc72aeb7398..a9a8e9ab0f52 100644
> --- a/arch/alpha/kernel/traps.c
> +++ b/arch/alpha/kernel/traps.c
> @@ -30,39 +30,6 @@
>
> #include "proto.h"
>
> -/* Work-around for some SRMs which mishandle opDEC faults. */
> -
> -static int opDEC_fix;
> -
> -static void
> -opDEC_check(void)
> -{
> - __asm__ __volatile__ (
> - /* Load the address of... */
> - " br $16, 1f\n"
> - /* A stub instruction fault handler. Just add 4 to the
> - pc and continue. */
> - " ldq $16, 8($sp)\n"
> - " addq $16, 4, $16\n"
> - " stq $16, 8($sp)\n"
> - " call_pal %[rti]\n"
> - /* Install the instruction fault handler. */
> - "1: lda $17, 3\n"
> - " call_pal %[wrent]\n"
> - /* With that in place, the fault from the round-to-minf fp
> - insn will arrive either at the "lda 4" insn (bad) or one
> - past that (good). This places the correct fixup in %0. */
> - " lda %[fix], 0\n"
> - " cvttq/svm $f31,$f31\n"
> - " lda %[fix], 4"
> - : [fix] "=r" (opDEC_fix)
> - : [rti] "n" (PAL_rti), [wrent] "n" (PAL_wrent)
> - : "$0", "$1", "$16", "$17", "$22", "$23", "$24", "$25");
> -
> - if (opDEC_fix)
> - printk("opDEC fixup enabled.\n");
> -}
> -
That should be moved into commit that removes the caller...
