+ lib-string_helpers-switch-to-use-bit-macro.patch added to -mm tree

+ lib-string_helpers-switch-to-use-bit-macro.patch added to -mm tree

[akpm]

The patch titled
     Subject: lib/string_helpers: switch to use BIT() macro
has been added to the -mm tree.  Its filename is
     lib-string_helpers-switch-to-use-bit-macro.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/lib-string_helpers-switch-to-use-bit-macro.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/lib-string_helpers-switch-to-use-bit-macro.patch

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------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: lib/string_helpers: switch to use BIT() macro

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>
---

 include/linux/string_helpers.h |   21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

--- a/include/linux/string_helpers.h~lib-string_helpers-switch-to-use-bit-macro
+++ a/include/linux/string_helpers.h
@@ -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_in
 	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);
_

Patches currently in -mm which might be from andriy.shevchenko@linux.intel.com are

lib-string_helpers-switch-to-use-bit-macro.patch
lib-string_helpers-move-escape_np-check-inside-else-branch-in-a-loop.patch
lib-string_helpers-drop-indentation-level-in-string_escape_mem.patch
lib-string_helpers-introduce-escape_na-for-escaping-non-ascii.patch
lib-string_helpers-introduce-escape_nap-to-escape-non-ascii-and-non-printable.patch
lib-string_helpers-allow-to-append-additional-characters-to-be-escaped.patch
lib-test-string_helpers-print-flags-in-hexadecimal-format.patch
lib-test-string_helpers-get-rid-of-trailing-comma-in-terminators.patch
lib-test-string_helpers-add-test-cases-for-new-features.patch
maintainers-add-myself-as-designated-reviewer-for-generic-string-library.patch
seq_file-introduce-seq_escape_mem.patch
seq_file-add-seq_escape_str-as-replica-of-string_escape_str.patch
seq_file-convert-seq_escape-to-use-seq_escape_str.patch
nfsd-avoid-non-flexible-api-in-seq_quote_mem.patch
seq_file-drop-unused-_escape_mem_ascii.patch