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Subject[PATCH 3/5] kprobes: constify check_kprobe_address_safe and friends
Date
Constify the parameters of lookup functions.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---
arch/x86/kernel/kprobes-opt.c | 8 ++++----
kernel/kprobes.c | 2 +-
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/kprobes-opt.c b/arch/x86/kernel/kprobes-opt.c
index c5e410e..5876966 100644
--- a/arch/x86/kernel/kprobes-opt.c
+++ b/arch/x86/kernel/kprobes-opt.c
@@ -192,7 +192,7 @@ static int __kprobes copy_optimized_instructions(u8 *dest, u8 *src)
}

/* Check whether insn is indirect jump */
-static int __kprobes insn_is_indirect_jump(struct insn *insn)
+static int __kprobes insn_is_indirect_jump(const struct insn *insn)
{
return ((insn->opcode.bytes[0] == 0xff &&
(X86_MODRM_REG(insn->modrm.value) & 6) == 4) || /* Jump */
@@ -200,7 +200,7 @@ static int __kprobes insn_is_indirect_jump(struct insn *insn)
}

/* Check whether insn jumps into specified address range */
-static int insn_jump_into_range(struct insn *insn, unsigned long start, int len)
+static int insn_jump_into_range(const struct insn *insn, unsigned long start, int len)
{
unsigned long target = 0;

@@ -278,7 +278,7 @@ static int __kprobes can_optimize(unsigned long paddr)
}

/* Check optimized_kprobe can actually be optimized. */
-int __kprobes arch_check_optimized_kprobe(struct optimized_kprobe *op)
+int __kprobes arch_check_optimized_kprobe(const struct optimized_kprobe *op)
{
int i;
struct kprobe *p;
@@ -294,7 +294,7 @@ int __kprobes arch_check_optimized_kprobe(struct optimized_kprobe *op)

/* Check the addr is within the optimized instructions. */
int __kprobes
-arch_within_optimized_kprobe(struct optimized_kprobe *op, unsigned long addr)
+arch_within_optimized_kprobe(const struct optimized_kprobe *op, unsigned long addr)
{
return ((unsigned long)op->kp.addr <= addr &&
(unsigned long)op->kp.addr + op->optinsn.size > addr);
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 098f396..7daddb0 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1402,7 +1402,7 @@ static inline int check_kprobe_rereg(struct kprobe *p)
return ret;
}

-static __kprobes int check_kprobe_address_safe(struct kprobe *p,
+static __kprobes int check_kprobe_address_safe(const struct kprobe *p,
struct module **probed_mod)
{
int ret = 0;
--
1.8.1


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