[xen staging] xen/x86: drop constanst_test_bit() in asm/bitops.h

[patchbot@xxxxxxx]

commit 846472780d825fd04fa5df5b65c669848b028e08
Author:     Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
AuthorDate: Wed Jul 31 13:08:16 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Jul 31 13:08:16 2024 +0200

    xen/x86: drop constanst_test_bit() in asm/bitops.h
    
    constant_test_bit() is functionally the same as generic_test_bit(),
    so constant_test_bit() can be dropped and replaced with
    generic_test_bit().
    
    Requested-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/include/asm/bitops.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/xen/arch/x86/include/asm/bitops.h 
b/xen/arch/x86/include/asm/bitops.h
index f9aa60111f..8c0403405a 100644
--- a/xen/arch/x86/include/asm/bitops.h
+++ b/xen/arch/x86/include/asm/bitops.h
@@ -277,12 +277,6 @@ static inline int test_and_change_bit(int nr, volatile 
void *addr)
     test_and_change_bit(nr, addr);                      \
 })
 
-static inline int constant_test_bit(int nr, const volatile void *addr)
-{
-    return ((1U << (nr & 31)) &
-            (((const volatile unsigned int *)addr)[nr >> 5])) != 0;
-}
-
 static inline int variable_test_bit(int nr, const volatile void *addr)
 {
     int oldbit;
@@ -297,7 +291,7 @@ static inline int variable_test_bit(int nr, const volatile 
void *addr)
 
 #define arch_test_bit(nr, addr) ({                      \
     __builtin_constant_p(nr) ?                          \
-        constant_test_bit(nr, addr) :                   \
+        generic_test_bit(nr, addr) :                    \
         variable_test_bit(nr, addr);                    \
 })
 
--
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