[xen staging] x86: drop cpu_has_ffxsr

[patchbot@xxxxxxx]

commit 96b5c267e52657e99bd1bbf81dd51925447115e2
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Apr 24 15:06:15 2020 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Apr 24 15:06:15 2020 +0200

    x86: drop cpu_has_ffxsr
    
    It's definition is bogus when it comes to Hygon CPUs, but since we don't
    use it anywhere drop it rather than correcting it.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/include/asm-x86/cpufeature.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/xen/include/asm-x86/cpufeature.h b/xen/include/asm-x86/cpufeature.h
index fb8137e3e8..859970570b 100644
--- a/xen/include/asm-x86/cpufeature.h
+++ b/xen/include/asm-x86/cpufeature.h
@@ -66,8 +66,6 @@
 
 /* CPUID level 0x80000001.edx */
 #define cpu_has_nx              boot_cpu_has(X86_FEATURE_NX)
-#define cpu_has_ffxsr           ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) \
-                                 && boot_cpu_has(X86_FEATURE_FFXSR))
 #define cpu_has_page1gb         boot_cpu_has(X86_FEATURE_PAGE1GB)
 #define cpu_has_rdtscp          boot_cpu_has(X86_FEATURE_RDTSCP)
 #define cpu_has_3dnow_ext       boot_cpu_has(X86_FEATURE_3DNOWEXT)
--
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