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Subject[PATCH 02/11] dynamic_debug: trim source-path prefix from dynamic_debug/control
Date
Skip past unchanging absolute source-path prefix to print a path
thats relative to kernel source's root-dir. This makes the file
easier to read without a wide screen. For example:

kernel/freezer.c:128 [freezer]cancel_freezing - " clean up: %s\012"

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
lib/dynamic_debug.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index a3b08d5..eb08a2f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -601,6 +601,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
struct ddebug_iter *iter = m->private;
struct _ddebug *dp = p;
char flagsbuf[8];
+ const int offset = strlen(__FILE__) - strlen("lib/dynamic_debug.c");

if (verbose)
printk(KERN_INFO "%s: called m=%p p=%p\n",
@@ -613,7 +614,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
}

seq_printf(m, "%s:%u [%s]%s %s \"",
- dp->filename, dp->lineno,
+ dp->filename + offset, dp->lineno,
iter->table->mod_name, dp->function,
ddebug_describe_flags(dp, flagsbuf, sizeof(flagsbuf)));
seq_escape(m, dp->format, "\t\r\n\"");
--
1.7.4.1


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