s390: mark __cpacf_check_opcode() and cpacf_query_func() as __always_inline

Commit e60fb8bf68d4 ("s390/cpacf: mark scpacf_query() as __always_inline")
was not enough to make sure to meet the 'i' (immediate) constraint for the
asm operands.

With CONFIG_OPTIMIZE_INLINING enabled, Laura Abbott reported error
with gcc 9.1.1:

  In file included from arch/s390/crypto/prng.c:29:
  ./arch/s390/include/asm/cpacf.h: In function 'cpacf_query_func':
  ./arch/s390/include/asm/cpacf.h:170:2: warning: asm operand 3 probably doesn't match constraints
    170 |  asm volatile(
        |  ^~~
  ./arch/s390/include/asm/cpacf.h:170:2: error: impossible constraint in 'asm'

Add more __always_inline to force inlining.

Fixes: 9012d011660e ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING")
Reported-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
index 27696755daa9096d429d36a4c7f90967e16371a0..e3d53eb6bcf581215b4d52ee5e7a38e25f8112b7 100644 (file)
--- a/arch/s390/include/asm/cpacf.h
+++ b/arch/s390/include/asm/cpacf.h
@@ -178,7 +178,7 @@ static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
                : "cc");
 }
 
-static inline int __cpacf_check_opcode(unsigned int opcode)
+static __always_inline int __cpacf_check_opcode(unsigned int opcode)
 {
        switch (opcode) {
        case CPACF_KMAC:
@@ -218,7 +218,7 @@ static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func)
        return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0;
 }
 
-static inline int cpacf_query_func(unsigned int opcode, unsigned int func)
+static __always_inline int cpacf_query_func(unsigned int opcode, unsigned int func)
 {
        cpacf_mask_t mask;