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authorJan Beulich <JBeulich@suse.com>2015-01-23 08:29:50 +0000
committerNeilBrown <neilb@suse.de>2015-02-04 08:35:51 +1100
commit75aaf4c3e6a4ed48207230cf133a02258ca5abd5 (patch)
tree4d4eba8a7ead427b30f41b0566838e8ff5b91688 /lib/raid6
parentd95901433436aeb921eac58bfd8a2aa77f110384 (diff)
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x86/raid6: correctly check for assembler capabilities
Just like for AVX2 (which simply needs an #if -> #ifdef conversion), SSSE3 assembler support should be checked for before using it. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Jim Kukunas <james.t.kukunas@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'lib/raid6')
-rw-r--r--lib/raid6/algos.c2
-rw-r--r--lib/raid6/recov_avx2.c2
-rw-r--r--lib/raid6/recov_ssse3.c6
3 files changed, 8 insertions, 2 deletions
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index 7d0e5cd7b570..dbef2314901e 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -89,10 +89,10 @@ void (*raid6_datap_recov)(int, size_t, int, void **);
EXPORT_SYMBOL_GPL(raid6_datap_recov);
const struct raid6_recov_calls *const raid6_recov_algos[] = {
-#if (defined(__i386__) || defined(__x86_64__)) && !defined(__arch_um__)
#ifdef CONFIG_AS_AVX2
&raid6_recov_avx2,
#endif
+#ifdef CONFIG_AS_SSSE3
&raid6_recov_ssse3,
#endif
&raid6_recov_intx1,
diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c
index e1eea433a493..53fe3d7bdfb3 100644
--- a/lib/raid6/recov_avx2.c
+++ b/lib/raid6/recov_avx2.c
@@ -8,7 +8,7 @@
* of the License.
*/
-#if CONFIG_AS_AVX2
+#ifdef CONFIG_AS_AVX2
#include <linux/raid/pq.h>
#include "x86.h"
diff --git a/lib/raid6/recov_ssse3.c b/lib/raid6/recov_ssse3.c
index a9168328f03b..cda33e56a5e3 100644
--- a/lib/raid6/recov_ssse3.c
+++ b/lib/raid6/recov_ssse3.c
@@ -7,6 +7,8 @@
* of the License.
*/
+#ifdef CONFIG_AS_SSSE3
+
#include <linux/raid/pq.h>
#include "x86.h"
@@ -330,3 +332,7 @@ const struct raid6_recov_calls raid6_recov_ssse3 = {
#endif
.priority = 1,
};
+
+#else
+#warning "your version of binutils lacks SSSE3 support"
+#endif