__switch_to test-and-branch ALTIVEC specific?

Marcelo Tosatti marcelo.tosatti at cyclades.com
Wed Sep 14 03:50:28 EST 2005


Hi,

This test&branch looks AltiVec specific, any reason for not #ifdef'ing it
out?

--- arch/ppc/kernel/process.c.orig      2005-09-13 14:43:13.000000000 -0300
+++ arch/ppc/kernel/process.c   2005-09-13 14:43:51.000000000 -0300
@@ -287,11 +287,13 @@ struct task_struct *__switch_to(struct t
 #endif /* CONFIG_SPE */
 #endif /* CONFIG_SMP */

+#ifdef CONFIG_ALTIVEC
        /* Avoid the trap.  On smp this this never happens since
         * we don't set last_task_used_altivec -- Cort
         */
        if (new->thread.regs && last_task_used_altivec == new)
                new->thread.regs->msr |= MSR_VEC;
+#endif
 #ifdef CONFIG_SPE
        /* Avoid the trap.  On smp this this never happens since
         * we don't set last_task_used_spe




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