The patch titled
lib: introduce common method to convert hex digits
has been added to the -mm tree. Its filename is
lib-introduce-common-method-to-convert-hex-digits.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: lib: introduce common method to convert hex digits
From: Andy Shevchenko <ext-andriy.shevchenko@xxxxxxxxx>
hex_to_bin() is a little method which converts hex digit to its actual
value. There are plenty of places where such functionality is needed.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@xxxxxxxxx>
Cc: Tilman Schmidt <tilman@xxxxxxx>
Cc: Duncan Sands <duncan.sands@xxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: "Richard Russon (FlatCap)" <ldm@xxxxxxxxxxx>
Cc: John W. Linville <linville@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/kernel.h | 2 ++
lib/hexdump.c | 19 +++++++++++++++++++
2 files changed, 21 insertions(+)
diff -puN include/linux/kernel.h~lib-introduce-common-method-to-convert-hex-digits include/linux/kernel.h
--- a/include/linux/kernel.h~lib-introduce-common-method-to-convert-hex-digits
+++ a/include/linux/kernel.h
@@ -373,6 +373,8 @@ static inline char *pack_hex_byte(char *
return buf;
}
+extern int hex_to_bin(char ch);
+
#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif
diff -puN lib/hexdump.c~lib-introduce-common-method-to-convert-hex-digits lib/hexdump.c
--- a/lib/hexdump.c~lib-introduce-common-method-to-convert-hex-digits
+++ a/lib/hexdump.c
@@ -16,6 +16,25 @@ const char hex_asc[] = "0123456789abcdef
EXPORT_SYMBOL(hex_asc);
/**
+ * hex_to_bin - convert a hex digit to its real value
+ * @ch: ascii character represents hex digit
+ *
+ * hex_to_bin() converts one hex digit to its actual value or -1 in case of bad
+ * input.
+ */
+int hex_to_bin(char ch)
+{
+ if ((ch >= 'a') && (ch <= 'f'))
+ return ch - 'a' + 10;
+ if ((ch >= '0') && (ch <= '9'))
+ return ch - '0';
+ if ((ch >= 'A') && (ch <= 'F'))
+ return ch - 'A' + 10;
+ return -1;
+}
+EXPORT_SYMBOL(hex_to_bin);
+
+/**
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
* @len: number of bytes in the @buf
_
Patches currently in -mm which might be from ext-andriy.shevchenko@xxxxxxxxx are
linux-next.patch
lib-introduce-common-method-to-convert-hex-digits.patch
drivers-isdn-use-new-hex_to_bin-method.patch
usb-atm-speedtch-use-new-hex_to_bin-method.patch
sysctl-dont-use-own-implementation-of-hex_to_bin.patch
staging-rt2860-use-new-hex_to_bin-method.patch
fs-ldm-dont-use-own-implementation-of-hex_to_bin.patch
drivers-wireless-use-new-hex_to_bin-method.patch
drivers-acpi-dont-use-own-implementation-of-hex_to_bin.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
