Commit 57ee67af authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Linus Torvalds
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[PATCH] ppc64: Fix CONFIG_ALTIVEC not set

The code that sets the altivec capability of the CPU based on firmware
informations can enable altivec when the kernel has CONFIG_ALTIVEC
disabled.  This results in "interesting" crashes.
Signed-off-by: default avatarBenjamin Herrenschmidt <>
Cc: Paul Mackerras <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 1caf1f0f
......@@ -916,6 +916,7 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
/* Check if we have a VMX and eventually update CPU features */
prop = (u32 *)get_flat_dt_prop(node, "ibm,vmx", NULL);
if (prop && (*prop) > 0) {
......@@ -929,6 +930,7 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
#endif /* CONFIG_ALTIVEC */
* Check for an SMT capable CPU and set the CPU feature. We do
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