From: Dave Hansen <[email protected]>

cpu_has_pae is only referenced in one place: the X86_32 kexec
code (in a file not even built on 64-bit).  It hardly warrants
its own macro, or the trouble we go to ensuring that it can't
be called in X86_64 code.

Axe the macro and replace it with a direct cpu feature check.

Signed-off-by: Dave Hansen <[email protected]>
---

 b/arch/x86/include/asm/cpufeature.h  |    4 ----
 b/arch/x86/kernel/machine_kexec_32.c |    3 ++-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff -puN arch/x86/include/asm/cpufeature.h~x86-axe-cpu_has_pae 
arch/x86/include/asm/cpufeature.h
--- a/arch/x86/include/asm/cpufeature.h~x86-axe-cpu_has_pae     2014-07-02 
09:16:20.852254443 -0700
+++ b/arch/x86/include/asm/cpufeature.h 2014-07-02 09:16:20.857254668 -0700
@@ -286,7 +286,6 @@ extern const char * const x86_power_flag
 #define cpu_has_de             boot_cpu_has(X86_FEATURE_DE)
 #define cpu_has_pse            boot_cpu_has(X86_FEATURE_PSE)
 #define cpu_has_tsc            boot_cpu_has(X86_FEATURE_TSC)
-#define cpu_has_pae            boot_cpu_has(X86_FEATURE_PAE)
 #define cpu_has_pge            boot_cpu_has(X86_FEATURE_PGE)
 #define cpu_has_apic           boot_cpu_has(X86_FEATURE_APIC)
 #define cpu_has_sep            boot_cpu_has(X86_FEATURE_SEP)
@@ -344,9 +343,6 @@ extern const char * const x86_power_flag
 #undef  cpu_has_vme
 #define cpu_has_vme            0
 
-#undef  cpu_has_pae
-#define cpu_has_pae            ___BUG___
-
 #undef  cpu_has_mp
 #define cpu_has_mp             1
 
diff -puN arch/x86/kernel/machine_kexec_32.c~x86-axe-cpu_has_pae 
arch/x86/kernel/machine_kexec_32.c
--- a/arch/x86/kernel/machine_kexec_32.c~x86-axe-cpu_has_pae    2014-07-02 
09:16:20.853254488 -0700
+++ b/arch/x86/kernel/machine_kexec_32.c        2014-07-02 09:16:20.857254668 
-0700
@@ -247,7 +247,8 @@ void machine_kexec(struct kimage *image)
        /* now call it */
        image->start = relocate_kernel_ptr((unsigned long)image->head,
                                           (unsigned long)page_list,
-                                          image->start, cpu_has_pae,
+                                          image->start,
+                                          boot_cpu_has(X86_FEATURE_PAE),
                                           image->preserve_context);
 
 #ifdef CONFIG_KEXEC_JUMP
_
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to