[PATCH 02/14] x86/bitops: don't cast away volatile-ness

[Jan Beulich]

Doing so, besides being a bad idea in general, violates Misra rule 11.8.
Use the helper macro we have available anyway.

No functional change intended.

Fixes: f1879b2c2584 ("xen: introduce generic non-atomic test_*bit()")
Signed-off-by: Jan Beulich <jbeul...@suse.com>

--- a/xen/arch/x86/include/asm/bitops.h
+++ b/xen/arch/x86/include/asm/bitops.h
@@ -188,7 +188,7 @@ static inline int arch__test_and_set_bit
     asm volatile ( "btsl %[nr], %[addr]\n\t"
                    ASM_FLAG_OUT(, "sbbl %[old], %[old]\n\t")
                    : [old] ASM_FLAG_OUT("=@ccc", "=r") (oldbit),
-                     [addr] "+m" (*(int *)addr) : [nr] "Ir" (nr) : "memory" );
+                     [addr] "+m" (ADDR) : [nr] "Ir" (nr) : "memory" );
 
     return oldbit;
 }
@@ -234,7 +234,7 @@ static inline int arch__test_and_clear_b
     asm volatile ( "btrl %[nr], %[addr]\n\t"
                    ASM_FLAG_OUT(, "sbbl %[old], %[old]\n\t")
                    : [old] ASM_FLAG_OUT("=@ccc", "=r") (oldbit),
-                     [addr] "+m" (*(int *)addr) : [nr] "Ir" (nr) : "memory" );
+                     [addr] "+m" (ADDR) : [nr] "Ir" (nr) : "memory" );
 
     return oldbit;
 }
@@ -248,7 +248,7 @@ static inline int arch__test_and_change_
     asm volatile ( "btcl %[nr], %[addr]\n\t"
                    ASM_FLAG_OUT(, "sbbl %[old], %[old]\n\t")
                    : [old] ASM_FLAG_OUT("=@ccc", "=r") (oldbit),
-                     [addr] "+m" (*(int *)addr) : [nr] "Ir" (nr) : "memory" );
+                     [addr] "+m" (ADDR) : [nr] "Ir" (nr) : "memory" );
 
     return oldbit;
 }