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[PATCH] kernel-doc for lib/crc*.c

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Make kernel-doc corrections & additions to lib/crc*.c.  Add crc functions to
kernel-api.tmpl in DocBook.

Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Randy Dunlap 2006-06-25 05:48:59 -07:00 • committed by Linus Torvalds
commit 2f72100c01
4 changed files with 36 additions and 40 deletions
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54
lib/crc32.c
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@ -42,20 +42,21 @@ MODULE_AUTHOR("Matt Domsch <[email protected]>");
MODULE_DESCRIPTION("Ethernet CRC32 calculations");
MODULE_LICENSE("GPL");
/**
* crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
* @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p: pointer to buffer over which CRC is run
* @len: length of buffer @p
*/
u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len);
#if CRC_LE_BITS == 1
/*
* In fact, the table-based code will work in this case, but it can be
* simplified by inlining the table in ?: form.
*/
/**
* crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
* @crc - seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p - pointer to buffer over which CRC is run
* @len - length of buffer @p
*
*/
u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
{
int i;
@ -68,14 +69,6 @@ u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
}
#else /* Table-based approach */
/**
* crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
* @crc - seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p - pointer to buffer over which CRC is run
* @len - length of buffer @p
*
*/
u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
{
# if CRC_LE_BITS == 8
@ -145,20 +138,21 @@ u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
}
#endif
/**
* crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
* @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p: pointer to buffer over which CRC is run
* @len: length of buffer @p
*/
u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len);
#if CRC_BE_BITS == 1
/*
* In fact, the table-based code will work in this case, but it can be
* simplified by inlining the table in ?: form.
*/
/**
* crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
* @crc - seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p - pointer to buffer over which CRC is run
* @len - length of buffer @p
*
*/
u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len)
{
int i;
@ -173,14 +167,6 @@ u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len)
}
#else /* Table-based approach */
/**
* crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
* @crc - seed value for computation. ~0 for Ethernet, sometimes 0 for
* other uses, or the previous crc32 value if computing incrementally.
* @p - pointer to buffer over which CRC is run
* @len - length of buffer @p
*
*/
u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len)
{
# if CRC_BE_BITS == 8
@ -249,6 +235,10 @@ u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len)
}
#endif
/**
* bitreverse - reverse the order of bits in a u32 value
* @x: value to be bit-reversed
*/
u32 bitreverse(u32 x)
{
x = (x >> 16) | (x << 16);