Thread (6 messages) 6 messages, 4 authors, 2007-08-29

Re: [PATCH] Prefix each line of multiline printk(KERN_<level> "foo\nbar") with KERN_<level>

From: Mike Frysinger <hidden>
Date: 2007-08-26 10:54:25
Also in: linux-acpi, linux-ide, linux-mips, linux-mm, linux-scsi, lkml

On 8/26/07, Geert Uytterhoeven [off-list ref] wrote:
On Fri, 24 Aug 2007, Joe Perches wrote:
quoted
Corrected printk calls with multiple output lines which
did not correctly preface each line with KERN_<level>

Fixed uses of some single lines with too many KERN_<level>
quoted
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -547,7 +547,8 @@ static void ecard_check_lockup(struct irq_desc *desc)
      if (last == jiffies) {
              lockup += 1;
              if (lockup > 1000000) {
-                     printk(KERN_ERR "\nInterrupt lockup detected - "
+                     printk(KERN_ERR "\n"
+                            KERN_ERR "Interrupt lockup detected - "
                             "disabling all expansion card interrupts\n");

                      desc->chip->mask(IRQ_EXPANSIONCARD);
What's the purpose of having lines printed with e.g. `KERN_ERR "\n"' only?
Shouldn't these just be removed?

Usually lines starting with `\n' are continuations, but given some other
module may call printk() in between, there's no guarantee continuations
appear on the same line.
erm, i thought the prink lock was grabbed per-buffer, not per-line ...
so yes, if the function calls were like printk(KERN_ERR "\n");
printk(KERN_ERR "..."); things could be broken up, but this is on
function call, so it shouldnt ...
-mike
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