diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2011-09-30 14:45:40 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-10-24 03:20:49 +0000 |
| commit | 635a2b3f3e561278cb5b837ea305e50e3fa7f063 (patch) | |
| tree | 5247707ab19c1f766b9fadb12adf06587fbcd8aa /drivers/target/tcm_fc/tfc_conf.c | |
| parent | f2b56afd406b455fba339a35f43bfc4ada198073 (diff) | |
tcm_fc: remove custom hex_to_bin in ft_parse_wwn
This patch converts ft_parse_wwn() to use hex_to_bin() instead of custom
conversion code.
(Andy: Re-add missing strict && isupper(c) check)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/tcm_fc/tfc_conf.c')
| -rw-r--r-- | drivers/target/tcm_fc/tfc_conf.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index b30eace70d35..5f770412ca40 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -31,6 +31,7 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/configfs.h> +#include <linux/kernel.h> #include <linux/ctype.h> #include <asm/unaligned.h> #include <scsi/scsi.h> @@ -70,10 +71,10 @@ static ssize_t ft_parse_wwn(const char *name, u64 *wwn, int strict) { const char *cp; char c; - u32 nibble; u32 byte = 0; u32 pos = 0; u32 err; + int val; *wwn = 0; for (cp = name; cp < &name[FT_NAMELEN - 1]; cp++) { @@ -94,13 +95,10 @@ static ssize_t ft_parse_wwn(const char *name, u64 *wwn, int strict) return cp - name; } err = 3; - if (isdigit(c)) - nibble = c - '0'; - else if (isxdigit(c) && (islower(c) || !strict)) - nibble = tolower(c) - 'a' + 10; - else + val = hex_to_bin(c); + if (val < 0 || (strict && isupper(c))) goto fail; - *wwn = (*wwn << 4) | nibble; + *wwn = (*wwn << 4) | val; } err = 4; fail: |