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compression: Use correct value for nibble_index

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Previously, we were setting this to the wrong value and overwriting
existing output data.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This commit is contained in:
Joseph Sutton 2022-03-07 20:09:40 +13:00 committed by Andrew Bartlett
parent f8feac11cb
commit 7fab9f90e8
2 changed files with 2 additions and 3 deletions
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4
lib/compression/lzxpress.c
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@ -151,10 +151,10 @@ ssize_t lzxpress_compress(const uint8_t *uncompressed,
match_len -= 7;
if (!nibble_index) {
nibble_index = compressed_pos;
nibble_index = compressed_pos + metadata_size;
__CHECK_BYTES(max_compressed_size, compressed_pos + metadata_size, sizeof(uint8_t));
compressed[compressed_pos + metadata_size] = MIN(match_len, 15);
compressed[nibble_index] = MIN(match_len, 15);
metadata_size += sizeof(uint8_t);
} else {
__CHECK_BYTES(max_compressed_size, nibble_index, sizeof(uint8_t));

1
selftest/knownfail.d/lzxpress
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@ -1,3 +1,2 @@
samba4.local.compression.lzxpress4
samba4.local.compression.lzxpress5
samba4.local.compression.lzxpress6