| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 9 Apr 2019 09:33:12 -0700
From: Joe Perches <joe@...ches.com>
To: Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Martin KaFai Lau <kafai@...com>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>
Cc: linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: [PATCH 1/2] s390: Convert IS_ENABLED uses to __is_defined
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@...ches.com>
---
arch/s390/kernel/nospec-branch.c | 6 +++---
arch/s390/kernel/nospec-sysfs.c | 2 +-
arch/s390/net/bpf_jit_comp.c | 6 +++---
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/s390/kernel/nospec-branch.c b/arch/s390/kernel/nospec-branch.c
index bdddaae96559..8e484130b9b8 100644
--- a/arch/s390/kernel/nospec-branch.c
+++ b/arch/s390/kernel/nospec-branch.c
@@ -37,7 +37,7 @@ static int __init nospec_report(void)
{
if (test_facility(156))
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");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
pr_info("Spectre V2 mitigation: limited branch prediction\n");
@@ -63,10 +63,10 @@ void __init nospec_auto_detect(void)
* The machine supports etokens.
* Disable expolines and disable nobp.
*/
- if (IS_ENABLED(CC_USING_EXPOLINE))
+ if (__is_defined(CC_USING_EXPOLINE))
nospec_disable = 1;
__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.
* Keep expolines enabled and disable nobp.
diff --git a/arch/s390/kernel/nospec-sysfs.c b/arch/s390/kernel/nospec-sysfs.c
index e30e580ae362..48f472bf9290 100644
--- a/arch/s390/kernel/nospec-sysfs.c
+++ b/arch/s390/kernel/nospec-sysfs.c
@@ -15,7 +15,7 @@ ssize_t cpu_show_spectre_v2(struct device *dev,
{
if (test_facility(156))
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");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
return sprintf(buf, "Mitigation: limited branch prediction\n");
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 51dd0267d014..5e7c63033159 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -455,7 +455,7 @@ static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
EMIT4(0xb9040000, REG_2, BPF_REG_0);
/* Restore registers */
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;
/* Generate __s390_indirect_jump_r14 thunk */
if (test_facility(35)) {
@@ -473,7 +473,7 @@ static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
/* br %r14 */
_EMIT2(0x07fe);
- if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable &&
+ if (__is_defined(CC_USING_EXPOLINE) && !nospec_disable &&
(jit->seen & SEEN_FUNC)) {
jit->r1_thunk_ip = jit->prg;
/* 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) */
EMIT6_DISP_LH(0xe3000000, 0x0004, REG_W1, REG_0, REG_L,
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 */
EMIT6_PCREL_RILB(0xc0050000, REG_14, jit->r1_thunk_ip);
} else {
--
2.15.0
Powered by blists - more mailing lists