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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

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Pull bprintf() removal from Steven Rostedt:

 - Remove unused bprintf() function, that was added with the rest of the
   "bin-printf" functions.

   These are functions that are used by trace_printk() that allows to
   quickly save the format and arguments into the ring buffer without
   the expensive processing of converting numbers to ASCII. Then on
   output, at a much later time, the ring buffer is read and the string
   processing occurs then. The bprintf() was added for consistency but
   was never used. It can be safely removed.

* tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  printf: Remove unused 'bprintf'
This commit is contained in:
Linus Torvalds
2024-12-01 13:10:51 -08:00
parent f788b5ef1c f69e63756f
commit 88862eeb47
2 changed files with 0 additions and 24 deletions
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1
include/linux/string.h
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@@ -335,7 +335,6 @@ int __sysfs_match_string(const char * const *array, size_t n, const char *s);
#ifdef CONFIG_BINARY_PRINTF
int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf);
int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
#endif
extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,

23
lib/vsprintf.c
View File

@@ -3428,29 +3428,6 @@ out:
}
EXPORT_SYMBOL_GPL(bstr_printf);
/**
* bprintf - Parse a format string and place args' binary value in a buffer
* @bin_buf: The buffer to place args' binary value
* @size: The size of the buffer(by words(32bits), not characters)
* @fmt: The format string to use
* @...: Arguments for the format string
*
* The function returns the number of words(u32) written
* into @bin_buf.
*/
int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...)
{
va_list args;
int ret;
va_start(args, fmt);
ret = vbin_printf(bin_buf, size, fmt, args);
va_end(args);
return ret;
}
EXPORT_SYMBOL_GPL(bprintf);
#endif /* CONFIG_BINARY_PRINTF */
/**