diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-06 16:51:16 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-13 22:21:25 +1100 |
| commit | df13102f82f1c8d0a1f43505275bf18246d7f9a0 (patch) | |
| tree | 4d0d79e97e481ef5d863b8927431fbcbfb375b87 /arch/powerpc/kernel/process.c | |
| parent | fb2d9505c0dbd4f5e00db70f7ca0ca7a3d75ca63 (diff) | |
| download | linux-df13102f82f1c8d0a1f43505275bf18246d7f9a0.tar.gz | |
powerpc/process: Constify the number of insns printed by show instructions functions.
instructions_to_print var is assigned value 16 and there is no
way to change it.
This patch replaces it by a constant.
Reviewed-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 050f1136f5873..0ed8d0968515f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1258,17 +1258,16 @@ 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)) @@ -1301,17 +1300,17 @@ 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)); /* * Make sure the NIP points at userspace, not kernel text/data or * elsewhere. */ - if (!__access_ok(pc, instructions_to_print * sizeof(int), USER_DS)) { + if (!__access_ok(pc, NR_INSN_TO_PRINT * sizeof(int), USER_DS)) { pr_info("%s[%d]: Bad NIP, not dumping instructions.\n", current->comm, current->pid); return; |