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| author | Vasily Gorbik <gor@linux.ibm.com> | 2019-10-22 17:37:51 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-10-31 17:20:52 +0100 |
| commit | d3baaeb5ae0870973bfe0f6aaed887b894d5e560 (patch) | |
| tree | 222d5f0bd4a0f32053a5ef796e403f1322f1051a /arch/s390/kernel/early.c | |
| parent | f653e29bc2d94ae6b6f470145c630d1ba0d856d2 (diff) | |
| download | linux-d3baaeb5ae0870973bfe0f6aaed887b894d5e560.tar.gz linux-d3baaeb5ae0870973bfe0f6aaed887b894d5e560.tar.bz2 linux-d3baaeb5ae0870973bfe0f6aaed887b894d5e560.zip | |
s390: avoid double handling of "noexec" option
"noexec" option is already parsed during startup and its value is
exposed via noexec_disabled variable. Simply reuse that value during
machine facilities detection.
Suggested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/early.c')
| -rw-r--r-- | arch/s390/kernel/early.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index b432d63d0b37..2e99e01e4f62 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -238,7 +238,7 @@ static __init void detect_machine_facilities(void) S390_lowcore.machine_flags |= MACHINE_FLAG_VX; __ctl_set_bit(0, 17); } - if (test_facility(130)) { + if (test_facility(130) && !noexec_disabled) { S390_lowcore.machine_flags |= MACHINE_FLAG_NX; __ctl_set_bit(0, 20); } @@ -268,21 +268,6 @@ static int __init disable_vector_extension(char *str) } early_param("novx", disable_vector_extension); -static int __init noexec_setup(char *str) -{ - bool enabled; - int rc; - - rc = kstrtobool(str, &enabled); - if (!rc && !enabled) { - /* Disable no-execute support */ - S390_lowcore.machine_flags &= ~MACHINE_FLAG_NX; - __ctl_clear_bit(0, 20); - } - return rc; -} -early_param("noexec", noexec_setup); - static int __init cad_setup(char *str) { bool enabled; |