sysctl: don't use own implementation of hex_to_bin()
Remove own implementation of hex_to_bin(). Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -13,6 +13,7 @@
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#include <linux/file.h>
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#include <linux/ctype.h>
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#include <linux/netdevice.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#ifdef CONFIG_SYSCTL_SYSCALL
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@ -1124,11 +1125,6 @@ out:
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return result;
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}
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static unsigned hex_value(int ch)
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{
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return isdigit(ch) ? ch - '0' : ((ch | 0x20) - 'a') + 10;
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}
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static ssize_t bin_uuid(struct file *file,
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void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
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{
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@ -1156,7 +1152,8 @@ static ssize_t bin_uuid(struct file *file,
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if (!isxdigit(str[0]) || !isxdigit(str[1]))
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goto out;
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uuid[i] = (hex_value(str[0]) << 4) | hex_value(str[1]);
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uuid[i] = (hex_to_bin(str[0]) << 4) |
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hex_to_bin(str[1]);
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str += 2;
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if (*str == '-')
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str++;
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