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selftests/vm/pkeys: fix pkey_disable_clear()

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Currently, pkey_disable_clear() sets the specified bits instead clearing
them.  This has been dead code up to now because its only callers i.e.
pkey_access/write_allow() are also unused.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Link: http://lkml.kernel.org/r/1f70bca60330a85dca42c3cd98212bb1cdf5a076.1585646528.git.sandipan@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ram Pai 2020-06-04 16:51:58 -07:00 committed by Linus Torvalds
parent 0c416bcaef
commit 11551801a7
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/vm/protection_keys.c
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@ -418,7 +418,7 @@ void pkey_disable_clear(int pkey, int flags)
pkey, pkey, pkey_rights); pkey, pkey, pkey_rights);
pkey_assert(pkey_rights >= 0); pkey_assert(pkey_rights >= 0);
pkey_rights |= flags; pkey_rights &= ~flags;
ret = hw_pkey_set(pkey, pkey_rights, 0); ret = hw_pkey_set(pkey, pkey_rights, 0);
shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, pkey, pkey_rights); shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, pkey, pkey_rights);
@ -431,7 +431,7 @@ void pkey_disable_clear(int pkey, int flags)
dprintf1("%s(%d) pkey_reg: 0x%016llx\n", __func__, dprintf1("%s(%d) pkey_reg: 0x%016llx\n", __func__,
pkey, read_pkey_reg()); pkey, read_pkey_reg());
if (flags) if (flags)
assert(read_pkey_reg() > orig_pkey_reg); assert(read_pkey_reg() < orig_pkey_reg);
} }
void pkey_write_allow(int pkey) void pkey_write_allow(int pkey)