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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	linuxram@us.ibm.com, bauerman@linux.ibm.com
Subject: [PATCH v6 11/23] powerpc/book3s64/pkeys: Make initial_allocation_mask static
Date: Thu,  9 Jul 2020 08:59:34 +0530	[thread overview]
Message-ID: <20200709032946.881753-12-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20200709032946.881753-1-aneesh.kumar@linux.ibm.com>

initial_allocation_mask is not used outside this file.
Also mark reserved_allocation_mask and initial_allocation_mask __ro_after_init;

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
 arch/powerpc/include/asm/pkeys.h | 1 -
 arch/powerpc/mm/book3s64/pkeys.c | 7 +++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h
index 26b20061512f..dd32e30f6767 100644
--- a/arch/powerpc/include/asm/pkeys.h
+++ b/arch/powerpc/include/asm/pkeys.h
@@ -13,7 +13,6 @@
 
 DECLARE_STATIC_KEY_FALSE(pkey_disabled);
 extern int num_pkey;
-extern u32 initial_allocation_mask; /*  bits set for the initially allocated keys */
 extern u32 reserved_allocation_mask; /* bits set for reserved keys */
 
 #define ARCH_VM_PKEY_FLAGS (VM_PKEY_BIT0 | VM_PKEY_BIT1 | VM_PKEY_BIT2 | \
diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c
index 42c236bd725f..ecbbf548e08f 100644
--- a/arch/powerpc/mm/book3s64/pkeys.c
+++ b/arch/powerpc/mm/book3s64/pkeys.c
@@ -14,11 +14,14 @@
 
 DEFINE_STATIC_KEY_FALSE(pkey_disabled);
 int  num_pkey;		/* Max number of pkeys supported */
-u32  initial_allocation_mask;   /* Bits set for the initially allocated keys */
 /*
  *  Keys marked in the reservation list cannot be allocated by  userspace
  */
-u32  reserved_allocation_mask;
+u32 reserved_allocation_mask __ro_after_init;
+
+/* Bits set for the initially allocated keys */
+static u32 initial_allocation_mask __ro_after_init;
+
 static bool pkey_execute_disable_supported;
 /*
  * Even if we allocate keys with sys_pkey_alloc(), we need to make sure
-- 
2.26.2


  parent reply	other threads:[~2020-07-09  3:50 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-09  3:29 [PATCH v6 00/23] powerpc/book3s/64/pkeys: Simplify the code Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 01/23] powerpc/book3s64/pkeys: Use PVR check instead of cpu feature Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 02/23] powerpc/book3s64/pkeys: Fixup bit numbering Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 03/23] powerpc/book3s64/pkeys: pkeys are supported only on hash on book3s Aneesh Kumar K.V
2020-07-20  6:05   ` Michael Ellerman
2020-07-20  6:15     ` Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 04/23] powerpc/book3s64/pkeys: Move pkey related bits in the linux page table Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 05/23] powerpc/book3s64/pkeys: Explain key 1 reservation details Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 06/23] powerpc/book3s64/pkeys: Simplify the key initialization Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 07/23] powerpc/book3s64/pkeys: Prevent key 1 modification from userspace Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 08/23] powerpc/book3s64/pkeys: kill cpu feature key CPU_FTR_PKEY Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 09/23] powerpc/book3s64/pkeys: Simplify pkey disable branch Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 10/23] powerpc/book3s64/pkeys: Convert pkey_total to num_pkey Aneesh Kumar K.V
2020-07-09  3:29 ` Aneesh Kumar K.V [this message]
2020-07-09  3:29 ` [PATCH v6 12/23] powerpc/book3s64/pkeys: Mark all the pkeys above max pkey as reserved Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 13/23] powerpc/book3s64/pkeys: Add MMU_FTR_PKEY Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 14/23] powerpc/book3s64/kuep: Add MMU_FTR_KUEP Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 15/23] powerpc/book3s64/pkeys: Use pkey_execute_disable_supported Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 16/23] powerpc/book3s64/pkeys: Use MMU_FTR_PKEY instead of pkey_disabled static key Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 17/23] powerpc/book3s64/keys: Print information during boot Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 18/23] powerpc/book3s64/keys/kuap: Reset AMR/IAMR values on kexec Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 19/23] powerpc/book3s64/kuap: Move UAMOR setup to key init function Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 20/23] powerpc/selftest/ptrave-pkey: Rename variables to make it easier to follow code Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 21/23] powerpc/selftest/ptrace-pkey: Update the test to mark an invalid pkey correctly Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 22/23] powerpc/selftest/ptrace-pkey: Don't update expected UAMOR value Aneesh Kumar K.V
2020-07-09  3:29 ` [PATCH v6 23/23] powerpc/book3s64/pkeys: Remove is_pkey_enabled() Aneesh Kumar K.V
2020-07-24 13:24 ` [PATCH v6 00/23] powerpc/book3s/64/pkeys: Simplify the code Michael Ellerman

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