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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-07-09 08:59:32 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-20 22:57:58 +1000 |
| commit | a4678d4b477c3d2901f101986ca01406f3b7eaea (patch) | |
| tree | 4ac51568c4bbbb1906620bc37e74c99e94694403 /arch/powerpc/mm | |
| parent | a24204c307962214996627e3f4caa8772b9b0cf4 (diff) | |
| download | linux-a4678d4b477c3d2901f101986ca01406f3b7eaea.tar.gz linux-a4678d4b477c3d2901f101986ca01406f3b7eaea.tar.bz2 linux-a4678d4b477c3d2901f101986ca01406f3b7eaea.zip | |
powerpc/book3s64/pkeys: Simplify pkey disable branch
Make the default value FALSE (pkey enabled) and set to TRUE when we
find the total number of keys supported to be zero.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200709032946.881753-10-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/pkeys.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c index e2bf93901bd0..8bdb56ce8b43 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -12,7 +12,7 @@ #include <linux/pkeys.h> #include <linux/of_device.h> -DEFINE_STATIC_KEY_TRUE(pkey_disabled); +DEFINE_STATIC_KEY_FALSE(pkey_disabled); int pkeys_total; /* Total pkeys as per device tree */ u32 initial_allocation_mask; /* Bits set for the initially allocated keys */ /* @@ -113,9 +113,8 @@ static int pkey_initialize(void) /* scan the device tree for pkey feature */ pkeys_total = scan_pkey_feature(); - if (pkeys_total) - static_branch_disable(&pkey_disabled); - else { + if (!pkeys_total) { + /* No support for pkey. Mark it disabled */ static_branch_enable(&pkey_disabled); return 0; } |