summaryrefslogtreecommitdiff
path: root/lib/bch.c
diff options
context:
space:
mode:
authorMiquel Raynal <miquel.raynal@bootlin.com>2020-05-19 10:45:42 +0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2020-05-24 21:48:11 +0300
commitc8ae3f744ddca0da164bcacee42d1d4b6fe7027d (patch)
treeaaaaa5e5f1707d9b89310f4e4340fac33299b8d2 /lib/bch.c
parentf0689802850beaf02dab79029a60eafdc617697f (diff)
downloadlinux-c8ae3f744ddca0da164bcacee42d1d4b6fe7027d.tar.xz
lib/bch: Rework a little bit the exported function names
There are four exported functions, all suffixed by _bch, which is clearly not the norm. Let's rename them by prefixing them with bch_ instead. This is a mechanical change: init_bch -> bch_init free_bch -> bch_free encode_bch -> bch_encode decode_bch -> bch_decode Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-2-miquel.raynal@bootlin.com
Diffstat (limited to 'lib/bch.c')
-rw-r--r--lib/bch.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/lib/bch.c b/lib/bch.c
index 052d3fb753a0..1091841ac716 100644
--- a/lib/bch.c
+++ b/lib/bch.c
@@ -23,15 +23,15 @@
* This library provides runtime configurable encoding/decoding of binary
* Bose-Chaudhuri-Hocquenghem (BCH) codes.
*
- * Call init_bch to get a pointer to a newly allocated bch_control structure for
+ * Call bch_init to get a pointer to a newly allocated bch_control structure for
* the given m (Galois field order), t (error correction capability) and
* (optional) primitive polynomial parameters.
*
- * Call encode_bch to compute and store ecc parity bytes to a given buffer.
- * Call decode_bch to detect and locate errors in received data.
+ * Call bch_encode to compute and store ecc parity bytes to a given buffer.
+ * Call bch_decode to detect and locate errors in received data.
*
* On systems supporting hw BCH features, intermediate results may be provided
- * to decode_bch in order to skip certain steps. See decode_bch() documentation
+ * to bch_decode in order to skip certain steps. See bch_decode() documentation
* for details.
*
* Option CONFIG_BCH_CONST_PARAMS can be used to force fixed values of
@@ -115,9 +115,9 @@ struct gf_poly_deg1 {
};
/*
- * same as encode_bch(), but process input data one byte at a time
+ * same as bch_encode(), but process input data one byte at a time
*/
-static void encode_bch_unaligned(struct bch_control *bch,
+static void bch_encode_unaligned(struct bch_control *bch,
const unsigned char *data, unsigned int len,
uint32_t *ecc)
{
@@ -174,7 +174,7 @@ static void store_ecc8(struct bch_control *bch, uint8_t *dst,
}
/**
- * encode_bch - calculate BCH ecc parity of data
+ * bch_encode - calculate BCH ecc parity of data
* @bch: BCH control structure
* @data: data to encode
* @len: data length in bytes
@@ -187,7 +187,7 @@ static void store_ecc8(struct bch_control *bch, uint8_t *dst,
* The exact number of computed ecc parity bits is given by member @ecc_bits of
* @bch; it may be less than m*t for large values of t.
*/
-void encode_bch(struct bch_control *bch, const uint8_t *data,
+void bch_encode(struct bch_control *bch, const uint8_t *data,
unsigned int len, uint8_t *ecc)
{
const unsigned int l = BCH_ECC_WORDS(bch)-1;
@@ -215,7 +215,7 @@ void encode_bch(struct bch_control *bch, const uint8_t *data,
m = ((unsigned long)data) & 3;
if (m) {
mlen = (len < (4-m)) ? len : 4-m;
- encode_bch_unaligned(bch, data, mlen, bch->ecc_buf);
+ bch_encode_unaligned(bch, data, mlen, bch->ecc_buf);
data += mlen;
len -= mlen;
}
@@ -255,13 +255,13 @@ void encode_bch(struct bch_control *bch, const uint8_t *data,
/* process last unaligned bytes */
if (len)
- encode_bch_unaligned(bch, data, len, bch->ecc_buf);
+ bch_encode_unaligned(bch, data, len, bch->ecc_buf);
/* store ecc parity bytes into original parity buffer */
if (ecc)
store_ecc8(bch, ecc, bch->ecc_buf);
}
-EXPORT_SYMBOL_GPL(encode_bch);
+EXPORT_SYMBOL_GPL(bch_encode);
static inline int modulo(struct bch_control *bch, unsigned int v)
{
@@ -952,7 +952,7 @@ static int chien_search(struct bch_control *bch, unsigned int len,
#endif /* USE_CHIEN_SEARCH */
/**
- * decode_bch - decode received codeword and find bit error locations
+ * bch_decode - decode received codeword and find bit error locations
* @bch: BCH control structure
* @data: received data, ignored if @calc_ecc is provided
* @len: data length in bytes, must always be provided
@@ -966,22 +966,22 @@ static int chien_search(struct bch_control *bch, unsigned int len,
* invalid parameters were provided
*
* Depending on the available hw BCH support and the need to compute @calc_ecc
- * separately (using encode_bch()), this function should be called with one of
+ * separately (using bch_encode()), this function should be called with one of
* the following parameter configurations -
*
* by providing @data and @recv_ecc only:
- * decode_bch(@bch, @data, @len, @recv_ecc, NULL, NULL, @errloc)
+ * bch_decode(@bch, @data, @len, @recv_ecc, NULL, NULL, @errloc)
*
* by providing @recv_ecc and @calc_ecc:
- * decode_bch(@bch, NULL, @len, @recv_ecc, @calc_ecc, NULL, @errloc)
+ * bch_decode(@bch, NULL, @len, @recv_ecc, @calc_ecc, NULL, @errloc)
*
* by providing ecc = recv_ecc XOR calc_ecc:
- * decode_bch(@bch, NULL, @len, NULL, ecc, NULL, @errloc)
+ * bch_decode(@bch, NULL, @len, NULL, ecc, NULL, @errloc)
*
* by providing syndrome results @syn:
- * decode_bch(@bch, NULL, @len, NULL, NULL, @syn, @errloc)
+ * bch_decode(@bch, NULL, @len, NULL, NULL, @syn, @errloc)
*
- * Once decode_bch() has successfully returned with a positive value, error
+ * Once bch_decode() has successfully returned with a positive value, error
* locations returned in array @errloc should be interpreted as follows -
*
* if (errloc[n] >= 8*len), then n-th error is located in ecc (no need for
@@ -993,7 +993,7 @@ static int chien_search(struct bch_control *bch, unsigned int len,
* Note that this function does not perform any data correction by itself, it
* merely indicates error locations.
*/
-int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
+int bch_decode(struct bch_control *bch, const uint8_t *data, unsigned int len,
const uint8_t *recv_ecc, const uint8_t *calc_ecc,
const unsigned int *syn, unsigned int *errloc)
{
@@ -1012,7 +1012,7 @@ int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
/* compute received data ecc into an internal buffer */
if (!data || !recv_ecc)
return -EINVAL;
- encode_bch(bch, data, len, NULL);
+ bch_encode(bch, data, len, NULL);
} else {
/* load provided calculated ecc */
load_ecc8(bch, bch->ecc_buf, calc_ecc);
@@ -1053,7 +1053,7 @@ int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
}
return (err >= 0) ? err : -EBADMSG;
}
-EXPORT_SYMBOL_GPL(decode_bch);
+EXPORT_SYMBOL_GPL(bch_decode);
/*
* generate Galois field lookup tables
@@ -1236,7 +1236,7 @@ finish:
}
/**
- * init_bch - initialize a BCH encoder/decoder
+ * bch_init - initialize a BCH encoder/decoder
* @m: Galois field order, should be in the range 5-15
* @t: maximum error correction capability, in bits
* @prim_poly: user-provided primitive polynomial (or 0 to use default)
@@ -1246,17 +1246,17 @@ finish:
*
* This initialization can take some time, as lookup tables are built for fast
* encoding/decoding; make sure not to call this function from a time critical
- * path. Usually, init_bch() should be called on module/driver init and
- * free_bch() should be called to release memory on exit.
+ * path. Usually, bch_init() should be called on module/driver init and
+ * bch_free() should be called to release memory on exit.
*
* You may provide your own primitive polynomial of degree @m in argument
- * @prim_poly, or let init_bch() use its default polynomial.
+ * @prim_poly, or let bch_init() use its default polynomial.
*
- * Once init_bch() has successfully returned a pointer to a newly allocated
+ * Once bch_init() has successfully returned a pointer to a newly allocated
* BCH control structure, ecc length in bytes is given by member @ecc_bytes of
* the structure.
*/
-struct bch_control *init_bch(int m, int t, unsigned int prim_poly)
+struct bch_control *bch_init(int m, int t, unsigned int prim_poly)
{
int err = 0;
unsigned int i, words;
@@ -1347,16 +1347,16 @@ struct bch_control *init_bch(int m, int t, unsigned int prim_poly)
return bch;
fail:
- free_bch(bch);
+ bch_free(bch);
return NULL;
}
-EXPORT_SYMBOL_GPL(init_bch);
+EXPORT_SYMBOL_GPL(bch_init);
/**
- * free_bch - free the BCH control structure
+ * bch_free - free the BCH control structure
* @bch: BCH control structure to release
*/
-void free_bch(struct bch_control *bch)
+void bch_free(struct bch_control *bch)
{
unsigned int i;
@@ -1377,7 +1377,7 @@ void free_bch(struct bch_control *bch)
kfree(bch);
}
}
-EXPORT_SYMBOL_GPL(free_bch);
+EXPORT_SYMBOL_GPL(bch_free);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ivan Djelic <ivan.djelic@parrot.com>");