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lib/string_helpers: switch to use BIT() macro

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Patch series "lib/string_helpers: get rid of ugly *_escape_mem_ascii()", v3.

Get rid of ugly *_escape_mem_ascii() API since it's not flexible and has
the only single user.  Provide better approach based on usage of the
string_escape_mem() with appropriate flags.

Test cases has been expanded accordingly to cover new functionality.

This patch (of 15):

Switch to use BIT() macro for flag definitions.  No changes implied.

Link: https://lkml.kernel.org/r/20210504180819.73127-1-andriy.shevchenko@linux.intel.com
Link: https://lkml.kernel.org/r/20210504180819.73127-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2021-06-30 18:55:05 -07:00 committed by Linus Torvalds
parent 92aeda50d4
commit 994b69703e
1 changed files with 11 additions and 10 deletions
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21
include/linux/string_helpers.h
View file

@ -2,6 +2,7 @@
#ifndef _LINUX_STRING_HELPERS_H_
#define _LINUX_STRING_HELPERS_H_
#include <linux/bits.h>
#include <linux/ctype.h>
#include <linux/types.h>
@ -18,10 +19,10 @@ enum string_size_units {
void string_get_size(u64 size, u64 blk_size, enum string_size_units units,
char *buf, int len);
#define UNESCAPE_SPACE 0x01
#define UNESCAPE_OCTAL 0x02
#define UNESCAPE_HEX 0x04
#define UNESCAPE_SPECIAL 0x08
#define UNESCAPE_SPACE BIT(0)
#define UNESCAPE_OCTAL BIT(1)
#define UNESCAPE_HEX BIT(2)
#define UNESCAPE_SPECIAL BIT(3)
#define UNESCAPE_ANY \
(UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
@ -42,15 +43,15 @@ static inline int string_unescape_any_inplace(char *buf)
return string_unescape_any(buf, buf, 0);
}
#define ESCAPE_SPACE 0x01
#define ESCAPE_SPECIAL 0x02
#define ESCAPE_NULL 0x04
#define ESCAPE_OCTAL 0x08
#define ESCAPE_SPACE BIT(0)
#define ESCAPE_SPECIAL BIT(1)
#define ESCAPE_NULL BIT(2)
#define ESCAPE_OCTAL BIT(3)
#define ESCAPE_ANY \
(ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL)
#define ESCAPE_NP 0x10
#define ESCAPE_NP BIT(4)
#define ESCAPE_ANY_NP (ESCAPE_ANY | ESCAPE_NP)
#define ESCAPE_HEX 0x20
#define ESCAPE_HEX BIT(5)
int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
unsigned int flags, const char *only);