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s390: Convert IS_ENABLED uses to __is_defined

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IS_ENABLED should be reserved for CONFIG_<FOO> uses so convert
the uses of IS_ENABLED with a #define to __is_defined.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Joe Perches 2019-04-09 09:33:12 -07:00 committed by Martin Schwidefsky
parent 9a0ceb9cfb
commit 475c8e9e89
3 changed files with 7 additions and 7 deletions
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6
arch/s390/kernel/nospec-branch.c
View File

@ -37,7 +37,7 @@ static int __init nospec_report(void)
{ {
if (test_facility(156)) if (test_facility(156))
pr_info("Spectre V2 mitigation: etokens\n"); pr_info("Spectre V2 mitigation: etokens\n");
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable)
pr_info("Spectre V2 mitigation: execute trampolines\n"); pr_info("Spectre V2 mitigation: execute trampolines\n");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list)) if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
pr_info("Spectre V2 mitigation: limited branch prediction\n"); pr_info("Spectre V2 mitigation: limited branch prediction\n");
@ -63,10 +63,10 @@ void __init nospec_auto_detect(void)
* The machine supports etokens. * The machine supports etokens.
* Disable expolines and disable nobp. * Disable expolines and disable nobp.
*/ */
if (IS_ENABLED(CC_USING_EXPOLINE)) if (__is_defined(CC_USING_EXPOLINE))
nospec_disable = 1; nospec_disable = 1;
__clear_facility(82, S390_lowcore.alt_stfle_fac_list); __clear_facility(82, S390_lowcore.alt_stfle_fac_list);
} else if (IS_ENABLED(CC_USING_EXPOLINE)) { } else if (__is_defined(CC_USING_EXPOLINE)) {
/* /*
* The kernel has been compiled with expolines. * The kernel has been compiled with expolines.
* Keep expolines enabled and disable nobp. * Keep expolines enabled and disable nobp.

2
arch/s390/kernel/nospec-sysfs.c
View File

@ -15,7 +15,7 @@ ssize_t cpu_show_spectre_v2(struct device *dev,
{ {
if (test_facility(156)) if (test_facility(156))
return sprintf(buf, "Mitigation: etokens\n"); return sprintf(buf, "Mitigation: etokens\n");
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable)
return sprintf(buf, "Mitigation: execute trampolines\n"); return sprintf(buf, "Mitigation: execute trampolines\n");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list)) if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
return sprintf(buf, "Mitigation: limited branch prediction\n"); return sprintf(buf, "Mitigation: limited branch prediction\n");

6
arch/s390/net/bpf_jit_comp.c
View File

@ -455,7 +455,7 @@ static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
EMIT4(0xb9040000, REG_2, BPF_REG_0); EMIT4(0xb9040000, REG_2, BPF_REG_0);
/* Restore registers */ /* Restore registers */
save_restore_regs(jit, REGS_RESTORE, stack_depth); save_restore_regs(jit, REGS_RESTORE, stack_depth);
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) { if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable) {
jit->r14_thunk_ip = jit->prg; jit->r14_thunk_ip = jit->prg;
/* Generate __s390_indirect_jump_r14 thunk */ /* Generate __s390_indirect_jump_r14 thunk */
if (test_facility(35)) { if (test_facility(35)) {
@ -473,7 +473,7 @@ static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
/* br %r14 */ /* br %r14 */
_EMIT2(0x07fe); _EMIT2(0x07fe);
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable && if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable &&
(jit->seen & SEEN_FUNC)) { (jit->seen & SEEN_FUNC)) {
jit->r1_thunk_ip = jit->prg; jit->r1_thunk_ip = jit->prg;
/* Generate __s390_indirect_jump_r1 thunk */ /* Generate __s390_indirect_jump_r1 thunk */
@ -999,7 +999,7 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
/* lg %w1,<d(imm)>(%l) */ /* lg %w1,<d(imm)>(%l) */
EMIT6_DISP_LH(0xe3000000, 0x0004, REG_W1, REG_0, REG_L, EMIT6_DISP_LH(0xe3000000, 0x0004, REG_W1, REG_0, REG_L,
EMIT_CONST_U64(func)); EMIT_CONST_U64(func));
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) { if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable) {
/* brasl %r14,__s390_indirect_jump_r1 */ /* brasl %r14,__s390_indirect_jump_r1 */
EMIT6_PCREL_RILB(0xc0050000, REG_14, jit->r1_thunk_ip); EMIT6_PCREL_RILB(0xc0050000, REG_14, jit->r1_thunk_ip);
} else { } else {