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>
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@ -148,6 +148,7 @@ cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTI
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# does binutils support specific instructions?
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asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
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asinstr += $(call as-instr,pshufb %xmm0$(comma)%xmm0,-DCONFIG_AS_SSSE3=1)
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asinstr += $(call as-instr,crc32l %eax$(comma)%eax,-DCONFIG_AS_CRC32=1)
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avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
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avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)
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@ -89,10 +89,10 @@ void (*raid6_datap_recov)(int, size_t, int, void **);
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EXPORT_SYMBOL_GPL(raid6_datap_recov);
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const struct raid6_recov_calls *const raid6_recov_algos[] = {
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#if (defined(__i386__) || defined(__x86_64__)) && !defined(__arch_um__)
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#ifdef CONFIG_AS_AVX2
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&raid6_recov_avx2,
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#endif
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#ifdef CONFIG_AS_SSSE3
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&raid6_recov_ssse3,
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#endif
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&raid6_recov_intx1,
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@ -8,7 +8,7 @@
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* of the License.
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*/
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#if CONFIG_AS_AVX2
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#ifdef CONFIG_AS_AVX2
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#include <linux/raid/pq.h>
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#include "x86.h"
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@ -7,6 +7,8 @@
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* of the License.
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*/
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#ifdef CONFIG_AS_SSSE3
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#include <linux/raid/pq.h>
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#include "x86.h"
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@ -330,3 +332,7 @@ const struct raid6_recov_calls raid6_recov_ssse3 = {
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#endif
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.priority = 1,
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};
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#else
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#warning "your version of binutils lacks SSSE3 support"
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#endif
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