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samples/kprobe: convert the printk to pr_info/pr_err

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We prefer to use the pr_* to print out the log now, this patch converts
the printk to pr_info.  In the error path, use the pr_err to replace the
printk.

Link: http://lkml.kernel.org/r/1464143083-3877-1-git-send-email-shijie.huang@arm.com
Signed-off-by: Huang Shijie <shijie.huang@arm.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steve Capper <steve.capper@arm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Huang Shijie 2016-08-03 13:46:03 -07:00 committed by Linus Torvalds
parent 00085f1efa
commit e708c1488b
1 changed files with 12 additions and 17 deletions
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29
samples/kprobes/kprobe_example.c
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@ -27,23 +27,19 @@ static struct kprobe kp = {
static int handler_pre(struct kprobe *p, struct pt_regs *regs)
{
#ifdef CONFIG_X86
printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, ip = %lx,"
" flags = 0x%lx\n",
pr_info("<%s> pre_handler: p->addr = 0x%p, ip = %lx, flags = 0x%lx\n",
p->symbol_name, p->addr, regs->ip, regs->flags);
#endif
#ifdef CONFIG_PPC
printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, nip = 0x%lx,"
" msr = 0x%lx\n",
pr_info("<%s> pre_handler: p->addr = 0x%p, nip = 0x%lx, msr = 0x%lx\n",
p->symbol_name, p->addr, regs->nip, regs->msr);
#endif
#ifdef CONFIG_MIPS
printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, epc = 0x%lx,"
" status = 0x%lx\n",
pr_info("<%s> pre_handler: p->addr = 0x%p, epc = 0x%lx, status = 0x%lx\n",
p->symbol_name, p->addr, regs->cp0_epc, regs->cp0_status);
#endif
#ifdef CONFIG_TILEGX
printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx,"
" ex1 = 0x%lx\n",
pr_info("<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx, ex1 = 0x%lx\n",
p->symbol_name, p->addr, regs->pc, regs->ex1);
#endif
#ifdef CONFIG_ARM64
@ -61,19 +57,19 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs,
unsigned long flags)
{
#ifdef CONFIG_X86
printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, flags = 0x%lx\n",
pr_info("<%s> post_handler: p->addr = 0x%p, flags = 0x%lx\n",
p->symbol_name, p->addr, regs->flags);
#endif
#ifdef CONFIG_PPC
printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, msr = 0x%lx\n",
pr_info("<%s> post_handler: p->addr = 0x%p, msr = 0x%lx\n",
p->symbol_name, p->addr, regs->msr);
#endif
#ifdef CONFIG_MIPS
printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n",
pr_info("<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n",
p->symbol_name, p->addr, regs->cp0_status);
#endif
#ifdef CONFIG_TILEGX
printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
pr_info("<%s> post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
p->symbol_name, p->addr, regs->ex1);
#endif
#ifdef CONFIG_ARM64
@ -89,8 +85,7 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs,
*/
static int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr)
{
printk(KERN_INFO "fault_handler: p->addr = 0x%p, trap #%dn",
p->addr, trapnr);
pr_info("fault_handler: p->addr = 0x%p, trap #%dn", p->addr, trapnr);
/* Return 0 because we don't handle the fault. */
return 0;
}
@ -104,17 +99,17 @@ static int __init kprobe_init(void)
ret = register_kprobe(&kp);
if (ret < 0) {
printk(KERN_INFO "register_kprobe failed, returned %d\n", ret);
pr_err("register_kprobe failed, returned %d\n", ret);
return ret;
}
printk(KERN_INFO "Planted kprobe at %p\n", kp.addr);
pr_info("Planted kprobe at %p\n", kp.addr);
return 0;
}
static void __exit kprobe_exit(void)
{
unregister_kprobe(&kp);
printk(KERN_INFO "kprobe at %p unregistered\n", kp.addr);
pr_info("kprobe at %p unregistered\n", kp.addr);
}
module_init(kprobe_init)