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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-04-20 17:05:13 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-04-20 17:05:13 +0300 |
| commit | 7a258ff04f9d5fe549fed6d03931a0236587047e (patch) | |
| tree | 6b164332c2a3983d972cc4dc47af3fce6cc5dc32 /arch/arm/mm/nommu.c | |
| parent | 382bd4de61827dbaaf5fb4fb7b1f4be4a86505e7 (diff) | |
| parent | f61143c45077df4fa78e2f1ba455a00bbe1d5b8c (diff) | |
| download | linux-7a258ff04f9d5fe549fed6d03931a0236587047e.tar.xz | |
Merge branch 'linus' into irq/core
Pick up upstream fixes to avoid conflicts with pending patches.
Diffstat (limited to 'arch/arm/mm/nommu.c')
| -rw-r--r-- | arch/arm/mm/nommu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index 3b5c7aaf9c76..33a45bd96860 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -303,7 +303,10 @@ static inline void set_vbar(unsigned long val) */ static inline bool security_extensions_enabled(void) { - return !!cpuid_feature_extract(CPUID_EXT_PFR1, 4); + /* Check CPUID Identification Scheme before ID_PFR1 read */ + if ((read_cpuid_id() & 0x000f0000) == 0x000f0000) + return !!cpuid_feature_extract(CPUID_EXT_PFR1, 4); + return 0; } static unsigned long __init setup_vectors_base(void) |