[PATCH v2 2/2] powerpc/process: Constify the number of insns printed by show instructions functions.
From: Christophe Leroy
Date: Thu Sep 06 2018 - 04:51:19 EST
instructions_to_print var is assigned value 16 and there is no
way to change it.
This patch replaces it by a constant.
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
arch/powerpc/kernel/process.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 31d5d8a2ead6..c9a77512d0a8 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1260,17 +1260,16 @@ struct task_struct *__switch_to(struct task_struct *prev,
return last;
}
-static int instructions_to_print = 16;
+#define NR_INSN_TO_PRINT 16
static void show_instructions(struct pt_regs *regs)
{
int i;
- unsigned long pc = regs->nip - (instructions_to_print * 3 / 4 *
- sizeof(int));
+ unsigned long pc = regs->nip - (NR_INSN_TO_PRINT * 3 / 4 * sizeof(int));
printk("Instruction dump:");
- for (i = 0; i < instructions_to_print; i++) {
+ for (i = 0; i < NR_INSN_TO_PRINT; i++) {
int instr;
if (!(i % 8))
@@ -1303,11 +1302,11 @@ static void show_instructions(struct pt_regs *regs)
void show_user_instructions(struct pt_regs *regs)
{
unsigned long pc;
- int n = instructions_to_print;
+ int n = NR_INSN_TO_PRINT;
struct seq_buf s;
char buf[96]; /* enough for 8 times 9 + 2 chars */
- pc = regs->nip - (instructions_to_print * 3 / 4 * sizeof(int));
+ pc = regs->nip - (NR_INSN_TO_PRINT * 3 / 4 * sizeof(int));
seq_buf_init(&s, buf, sizeof(buf));
--
2.13.3