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Subject[PATCH 03/11] dynamic_debug: replace if (verbose) pr_info with macro vpr_info
Date
From: Jim Cromie <jim.cromie@gmail.com>

use new macro to declutter code, reduce indenting.
dont use pr_debug in lib/dynamic_debug.c, replace with vpr_info.
Disregard checkpatch warning about complex macro arg; there are
plenty of examples in include/*
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
lib/dynamic_debug.c | 79 ++++++++++++++++++++++-----------------------------
1 files changed, 34 insertions(+), 45 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 310c753..563e5fc 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -107,20 +107,22 @@ static char *ddebug_describe_flags(struct _ddebug *dp, char *buf,
return buf;
}

-#define vpr_info_dq(q, msg) \
-do { \
- if (verbose) \
- /* trim last char off format print */ \
- pr_info("%s: func=\"%s\" file=\"%s\" " \
- "module=\"%s\" format=\"%.*s\" " \
- "lineno=%u-%u", \
- msg, \
- q->function ? q->function : "", \
- q->filename ? q->filename : "", \
- q->module ? q->module : "", \
- (int)(q->format ? strlen(q->format) - 1 : 0), \
- q->format ? q->format : "", \
- q->first_lineno, q->last_lineno); \
+#define vpr_info(fmt, ...) \
+ if (verbose) do { pr_info(fmt, ##__VA_ARGS__); } while (0)
+
+#define vpr_info_dq(q, msg) \
+do { \
+ /* trim last char off format print */ \
+ vpr_info("%s: func=\"%s\" file=\"%s\" " \
+ "module=\"%s\" format=\"%.*s\" " \
+ "lineno=%u-%u", \
+ msg, \
+ q->function ? q->function : "", \
+ q->filename ? q->filename : "", \
+ q->module ? q->module : "", \
+ (int)(q->format ? strlen(q->format) - 1 : 0), \
+ q->format ? q->format : "", \
+ q->first_lineno, q->last_lineno); \
} while (0)

/*
@@ -180,12 +182,11 @@ static int ddebug_change(const struct ddebug_query *query,
if (newflags == dp->flags)
continue;
dp->flags = newflags;
- if (verbose)
- pr_info("changed %s:%d [%s]%s =%s\n",
- trim_prefix(dp->filename), dp->lineno,
- dt->mod_name, dp->function,
- ddebug_describe_flags(dp, flagbuf,
- sizeof(flagbuf)));
+ vpr_info("changed %s:%d [%s]%s =%s\n",
+ trim_prefix(dp->filename), dp->lineno,
+ dt->mod_name, dp->function,
+ ddebug_describe_flags(dp, flagbuf,
+ sizeof(flagbuf)));
}
}
mutex_unlock(&ddebug_lock);
@@ -410,8 +411,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
default:
return -EINVAL;
}
- if (verbose)
- pr_info("op='%c'\n", op);
+ vpr_info("op='%c'\n", op);

for ( ; *str ; ++str) {
for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
@@ -423,8 +423,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
if (i < 0)
return -EINVAL;
}
- if (verbose)
- pr_info("flags=0x%x\n", flags);
+ vpr_info("flags=0x%x\n", flags);

/* calculate final *flagsp, *maskp according to mask and op */
switch (op) {
@@ -441,8 +440,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
*flagsp = 0;
break;
}
- if (verbose)
- pr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
+ vpr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
return 0;
}

@@ -487,8 +485,7 @@ static int ddebug_exec_queries(char *query)
if (!query || !*query || *query == '#')
continue;

- if (verbose)
- pr_info("query %d: \"%s\"\n", i, query);
+ vpr_info("query %d: \"%s\"\n", i, query);

rc = ddebug_exec_query(query);
if (rc < 0) {
@@ -653,8 +650,7 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
return -EFAULT;
}
tmpbuf[len] = '\0';
- if (verbose)
- pr_info("read %d bytes from userspace\n", (int)len);
+ vpr_info("read %d bytes from userspace\n", (int)len);

ret = ddebug_exec_queries(tmpbuf);
kfree(tmpbuf);
@@ -717,8 +713,7 @@ static void *ddebug_proc_start(struct seq_file *m, loff_t *pos)
struct _ddebug *dp;
int n = *pos;

- if (verbose)
- pr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);
+ vpr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);

mutex_lock(&ddebug_lock);

@@ -742,9 +737,8 @@ static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
struct ddebug_iter *iter = m->private;
struct _ddebug *dp;

- if (verbose)
- pr_info("called m=%p p=%p *pos=%lld\n",
- m, p, (unsigned long long)*pos);
+ vpr_info("called m=%p p=%p *pos=%lld\n",
+ m, p, (unsigned long long)*pos);

if (p == SEQ_START_TOKEN)
dp = ddebug_iter_first(iter);
@@ -766,8 +760,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
struct _ddebug *dp = p;
char flagsbuf[10];

- if (verbose)
- pr_info("called m=%p p=%p\n", m, p);
+ vpr_info("called m=%p p=%p\n", m, p);

if (p == SEQ_START_TOKEN) {
seq_puts(m,
@@ -791,8 +784,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
*/
static void ddebug_proc_stop(struct seq_file *m, void *p)
{
- if (verbose)
- pr_info("called m=%p p=%p\n", m, p);
+ vpr_info("called m=%p p=%p\n", m, p);
mutex_unlock(&ddebug_lock);
}

@@ -815,8 +807,7 @@ static int ddebug_proc_open(struct inode *inode, struct file *file)
struct ddebug_iter *iter;
int err;

- if (verbose)
- pr_info("called\n");
+ vpr_info("called\n");

iter = kzalloc(sizeof(*iter), GFP_KERNEL);
if (iter == NULL)
@@ -866,8 +857,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
list_add_tail(&dt->link, &ddebug_tables);
mutex_unlock(&ddebug_lock);

- if (verbose)
- pr_info("%u debug prints in module %s\n", n, dt->mod_name);
+ vpr_info("%u debug prints in module %s\n", n, dt->mod_name);
return 0;
}
EXPORT_SYMBOL_GPL(ddebug_add_module);
@@ -888,8 +878,7 @@ int ddebug_remove_module(const char *mod_name)
struct ddebug_table *dt, *nextdt;
int ret = -ENOENT;

- if (verbose)
- pr_info("removing module \"%s\"\n", mod_name);
+ vpr_info("removing module \"%s\"\n", mod_name);

mutex_lock(&ddebug_lock);
list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
--
1.7.7.6


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