[PATCH v1 3/4] powerpc: Rename probe_kernel_read_inst()

@@ -177,7 +177,6 @@ static inline char *__ppc_inst_as_str(char str[PPC_INST_STR_LEN], struct ppc_ins
 	__str;				\
 })
 
-int probe_kernel_read_inst(struct ppc_inst *inst,
-			   struct ppc_inst *src);
+int copy_from_kernel_nofault_inst(struct ppc_inst *inst, struct ppc_inst *src);
 
 #endif /* _ASM_POWERPC_INST_H */

@@ -311,7 +311,7 @@ int fix_alignment(struct pt_regs *regs)
 	CHECK_FULL_REGS(regs);
 
 	if (is_kernel_addr(regs->nip))
-		r = probe_kernel_read_inst(&instr, (void *)regs->nip);
+		r = copy_from_kernel_nofault_inst(&instr, (void *)regs->nip);
 	else
 		r = __get_user_instr(instr, (void __user *)regs->nip);
 

@@ -68,7 +68,7 @@ ftrace_modify_code(unsigned long ip, struct ppc_inst old, struct ppc_inst new)
 	 */
 
 	/* read the text we want to modify */
-	if (probe_kernel_read_inst(&replaced, (void *)ip))
+	if (copy_from_kernel_nofault_inst(&replaced, (void *)ip))
 		return -EFAULT;
 
 	/* Make sure it is what we expect it to be */

@@ -130,7 +130,7 @@ __ftrace_make_nop(struct module *mod,
 	struct ppc_inst op, pop;
 
 	/* read where this goes */
-	if (probe_kernel_read_inst(&op, (void *)ip)) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)ip)) {
 		pr_err("Fetching opcode failed.\n");
 		return -EFAULT;
 	}

@@ -164,7 +164,7 @@ __ftrace_make_nop(struct module *mod,
 	/* When using -mkernel_profile there is no load to jump over */
 	pop = ppc_inst(PPC_INST_NOP);
 
-	if (probe_kernel_read_inst(&op, (void *)(ip - 4))) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)(ip - 4))) {
 		pr_err("Fetching instruction at %lx failed.\n", ip - 4);
 		return -EFAULT;
 	}

@@ -197,7 +197,7 @@ __ftrace_make_nop(struct module *mod,
 	 * Check what is in the next instruction. We can see ld r2,40(r1), but
 	 * on first pass after boot we will see mflr r0.
 	 */
-	if (probe_kernel_read_inst(&op, (void *)(ip + 4))) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)(ip + 4))) {
 		pr_err("Fetching op failed.\n");
 		return -EFAULT;
 	}

@@ -349,7 +349,7 @@ static int setup_mcount_compiler_tramp(unsigned long tramp)
 			return -1;
 
 	/* New trampoline -- read where this goes */
-	if (probe_kernel_read_inst(&op, (void *)tramp)) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)tramp)) {
 		pr_debug("Fetching opcode failed.\n");
 		return -1;
 	}

@@ -399,7 +399,7 @@ static int __ftrace_make_nop_kernel(struct dyn_ftrace *rec, unsigned long addr)
 	struct ppc_inst op;
 
 	/* Read where this goes */
-	if (probe_kernel_read_inst(&op, (void *)ip)) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)ip)) {
 		pr_err("Fetching opcode failed.\n");
 		return -EFAULT;
 	}

@@ -526,10 +526,10 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 	struct module *mod = rec->arch.mod;
 
 	/* read where this goes */
-	if (probe_kernel_read_inst(op, ip))
+	if (copy_from_kernel_nofault_inst(op, ip))
 		return -EFAULT;
 
-	if (probe_kernel_read_inst(op + 1, ip + 4))
+	if (copy_from_kernel_nofault_inst(op + 1, ip + 4))
 		return -EFAULT;
 
 	if (!expected_nop_sequence(ip, op[0], op[1])) {

@@ -592,7 +592,7 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 	unsigned long ip = rec->ip;
 
 	/* read where this goes */
-	if (probe_kernel_read_inst(&op, (void *)ip))
+	if (copy_from_kernel_nofault_inst(&op, (void *)ip))
 		return -EFAULT;
 
 	/* It should be pointing to a nop */

@@ -648,7 +648,7 @@ static int __ftrace_make_call_kernel(struct dyn_ftrace *rec, unsigned long addr)
 	}
 
 	/* Make sure we have a nop */
-	if (probe_kernel_read_inst(&op, ip)) {
+	if (copy_from_kernel_nofault_inst(&op, ip)) {
 		pr_err("Unable to read ftrace location %p\n", ip);
 		return -EFAULT;
 	}

@@ -726,7 +726,7 @@ __ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
 	}
 
 	/* read where this goes */
-	if (probe_kernel_read_inst(&op, (void *)ip)) {
+	if (copy_from_kernel_nofault_inst(&op, (void *)ip)) {
 		pr_err("Fetching opcode failed.\n");
 		return -EFAULT;
 	}

@@ -8,8 +8,7 @@
 #include <asm/inst.h>
 #include <asm/ppc-opcode.h>
 
-int probe_kernel_read_inst(struct ppc_inst *inst,
-			   struct ppc_inst *src)
+int copy_from_kernel_nofault_inst(struct ppc_inst *inst, struct ppc_inst *src)
 {
 	unsigned int val, suffix;
 	int err;