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fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void

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The seq_<foo> function return values were frequently misused.

See: commit 1f33c41c03 ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

All uses of these return values have been removed, so convert the
return types to void.

Miscellanea:

o Move seq_put_decimal_<type> and seq_escape prototypes closer the
  other seq_vprintf prototypes
o Reorder seq_putc and seq_puts to return early on overflow
o Add argument names to seq_vprintf and seq_printf
o Update the seq_escape kernel-doc
o Convert a couple of leading spaces to tabs in seq_escape

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2015-09-11 13:07:48 -07:00 • committed by Linus Torvalds
parent c9946c4208
commit 6798a8caaf
4 changed files with 45 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

19
include/linux/seq_file.h
View file

@ -114,13 +114,18 @@ int seq_open(struct file *, const struct seq_operations *);
ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
loff_t seq_lseek(struct file *, loff_t, int);
int seq_release(struct inode *, struct file *);
int seq_escape(struct seq_file *, const char *, const char *);
int seq_putc(struct seq_file *m, char c);
int seq_puts(struct seq_file *m, const char *s);
int seq_write(struct seq_file *seq, const void *data, size_t len);
__printf(2, 3) int seq_printf(struct seq_file *, const char *, ...);
__printf(2, 0) int seq_vprintf(struct seq_file *, const char *, va_list args);
__printf(2, 0)
void seq_vprintf(struct seq_file *m, const char *fmt, va_list args);
__printf(2, 3)
void seq_printf(struct seq_file *m, const char *fmt, ...);
void seq_putc(struct seq_file *m, char c);
void seq_puts(struct seq_file *m, const char *s);
void seq_put_decimal_ull(struct seq_file *m, char delimiter,
unsigned long long num);
void seq_put_decimal_ll(struct seq_file *m, char delimiter, long long num);
void seq_escape(struct seq_file *m, const char *s, const char *esc);
void seq_hex_dump(struct seq_file *m, const char *prefix_str, int prefix_type,
int rowsize, int groupsize, const void *buf, size_t len,
@ -138,10 +143,6 @@ int single_release(struct inode *, struct file *);
void *__seq_open_private(struct file *, const struct seq_operations *, int);
int seq_open_private(struct file *, const struct seq_operations *, int);
int seq_release_private(struct inode *, struct file *);
int seq_put_decimal_ull(struct seq_file *m, char delimiter,
unsigned long long num);
int seq_put_decimal_ll(struct seq_file *m, char delimiter,
long long num);
static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
{