Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH] x86/alternatives: Add pr_fmt() to debug macros | Date | Mon, 15 Jun 2020 19:53:15 +0200 |
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From: Borislav Petkov <bp@suse.de>
... in order to have debug output prefixed with the pr_fmt text "SMP alternatives:" which allows easy grepping:
$ dmesg | grep "SMP alternatives" [ 0.167783] SMP alternatives: alt table ffffffff8272c780, -> ffffffff8272fd6e [ 0.168620] SMP alternatives: feat: 3*32+16, old: (x86_64_start_kernel+0x37/0x73 \ (ffffffff826093f7) len: 5), repl: (ffffffff8272fd6e, len: 5), pad: 0 [ 0.170103] SMP alternatives: ffffffff826093f7: old_insn: e8 54 a8 da fe [ 0.171184] SMP alternatives: ffffffff8272fd6e: rpl_insn: e8 cd 3e c8 fe ...
No functional changes.
Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/kernel/alternative.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 8fd39ff74a49..9e7dc37a8627 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -53,7 +53,7 @@ __setup("noreplace-smp", setup_noreplace_smp); #define DPRINTK(fmt, args...) \ do { \ if (debug_alternative) \ - printk(KERN_DEBUG "%s: " fmt "\n", __func__, ##args); \ + printk(KERN_DEBUG pr_fmt(fmt) "\n", ##args); \ } while (0) #define DUMP_BYTES(buf, len, fmt, args...) \ @@ -64,7 +64,7 @@ do { \ if (!(len)) \ break; \ \ - printk(KERN_DEBUG fmt, ##args); \ + printk(KERN_DEBUG pr_fmt(fmt), ##args); \ for (j = 0; j < (len) - 1; j++) \ printk(KERN_CONT "%02hhx ", buf[j]); \ printk(KERN_CONT "%02hhx\n", buf[j]); \ -- 2.21.0
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