Instead of expecting the bloblist total size to be the same as the pre-allocated buffer size, practically we are more interested in whether the pre-allocated buffer size is bigger than the bloblist total size.
Signed-off-by: Raymond Mao raymond.mao@linaro.org Reviewed-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- Changes in v2 - New patch file created for v2. Changes in v4 - Update function header of bloblist_check().
common/bloblist.c | 2 +- include/bloblist.h | 9 +++++---- test/bloblist.c | 2 +- 3 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/common/bloblist.c b/common/bloblist.c index 980b1ddbcb..26b0ba33b1 100644 --- a/common/bloblist.c +++ b/common/bloblist.c @@ -384,7 +384,7 @@ int bloblist_check(ulong addr, uint size) return log_msg_ret("Bad magic", -ENOENT); if (hdr->version != BLOBLIST_VERSION) return log_msg_ret("Bad version", -EPROTONOSUPPORT); - if (!hdr->total_size || (size && hdr->total_size != size)) + if (!hdr->total_size || (size && hdr->total_size > size)) return log_msg_ret("Bad total size", -EFBIG); if (hdr->used_size > hdr->total_size) return log_msg_ret("Bad used size", -ENOENT); diff --git a/include/bloblist.h b/include/bloblist.h index f7e800f681..cc78259e5a 100644 --- a/include/bloblist.h +++ b/include/bloblist.h @@ -348,12 +348,13 @@ int bloblist_new(ulong addr, uint size, uint flags, uint align_log2); * bloblist_check() - Check if a bloblist exists * * @addr: Address of bloblist - * @size: Expected size of blobsize, or 0 to detect the size + * @size: Reserved space size for blobsize, or 0 to use the total size * Return: 0 if OK, -ENOENT if the magic number doesn't match (indicating that - * there problem is no bloblist at the given address), -EPROTONOSUPPORT + * there problem is no bloblist at the given address) or any fields for header + * size, used size and total size do not match, -EPROTONOSUPPORT * if the version does not match, -EIO if the checksum does not match, - * -EFBIG if the expected size does not match the detected size, -ENOSPC - * if the size is not large enough to hold the headers + * -EFBIG if the reserved space size is small than the total size or total size + * is 0 */ int bloblist_check(ulong addr, uint size);
diff --git a/test/bloblist.c b/test/bloblist.c index 17d9dd03d0..7dab9addf8 100644 --- a/test/bloblist.c +++ b/test/bloblist.c @@ -207,7 +207,7 @@ static int bloblist_test_checksum(struct unit_test_state *uts) hdr->flags++;
hdr->total_size--; - ut_asserteq(-EFBIG, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE)); + ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE)); hdr->total_size++;
hdr->spare++;