diff options
author | David Kozub <zub@linux.fjfi.cvut.cz> | 2019-02-14 01:16:00 +0100 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2019-04-06 11:09:12 -0600 |
commit | b68f09ecdeaa7d59397429cb95aa83f02b9bd107 (patch) | |
tree | cdfda946e4e8bcb35b2fd8db2b3cf5b672cc85e3 /block/sed-opal.c | |
parent | 7d9b62ae2a7db6dfa218999b7dd65517a6f9cfb7 (diff) |
block: sed-opal: reuse response_get_token to decrease code duplication
response_get_token had already been in place, its functionality had
been duplicated within response_get_{u64,bytestring} with the same error
handling. Unify the handling by reusing response_get_token within the
other functions.
Co-authored-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz>
Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Reviewed-by: Scott Bauer <sbauer@plzdonthack.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/sed-opal.c')
-rw-r--r-- | block/sed-opal.c | 46 |
1 files changed, 15 insertions, 31 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c index 3f368b14efd9..5cb8034b53c8 100644 --- a/block/sed-opal.c +++ b/block/sed-opal.c @@ -883,27 +883,19 @@ static size_t response_get_string(const struct parsed_resp *resp, int n, const char **store) { u8 skip; - const struct opal_resp_tok *token; + const struct opal_resp_tok *tok; *store = NULL; - if (!resp) { - pr_debug("Response is NULL\n"); - return 0; - } - - if (n >= resp->num) { - pr_debug("Response has %d tokens. Can't access %d\n", - resp->num, n); + tok = response_get_token(resp, n); + if (IS_ERR(tok)) return 0; - } - token = &resp->toks[n]; - if (token->type != OPAL_DTA_TOKENID_BYTESTRING) { + if (tok->type != OPAL_DTA_TOKENID_BYTESTRING) { pr_debug("Token is not a byte string!\n"); return 0; } - switch (token->width) { + switch (tok->width) { case OPAL_WIDTH_TINY: case OPAL_WIDTH_SHORT: skip = 1; @@ -919,37 +911,29 @@ static size_t response_get_string(const struct parsed_resp *resp, int n, return 0; } - *store = token->pos + skip; - return token->len - skip; + *store = tok->pos + skip; + return tok->len - skip; } static u64 response_get_u64(const struct parsed_resp *resp, int n) { - if (!resp) { - pr_debug("Response is NULL\n"); - return 0; - } + const struct opal_resp_tok *tok; - if (n >= resp->num) { - pr_debug("Response has %d tokens. Can't access %d\n", - resp->num, n); + tok = response_get_token(resp, n); + if (IS_ERR(tok)) return 0; - } - if (resp->toks[n].type != OPAL_DTA_TOKENID_UINT) { - pr_debug("Token is not unsigned it: %d\n", - resp->toks[n].type); + if (tok->type != OPAL_DTA_TOKENID_UINT) { + pr_debug("Token is not unsigned int: %d\n", tok->type); return 0; } - if (!(resp->toks[n].width == OPAL_WIDTH_TINY || - resp->toks[n].width == OPAL_WIDTH_SHORT)) { - pr_debug("Atom is not short or tiny: %d\n", - resp->toks[n].width); + if (tok->width != OPAL_WIDTH_TINY && tok->width != OPAL_WIDTH_SHORT) { + pr_debug("Atom is not short or tiny: %d\n", tok->width); return 0; } - return resp->toks[n].stored.u; + return tok->stored.u; } static bool response_token_matches(const struct opal_resp_tok *token, u8 match) |