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lzop: checksum reads do not need to be checksummed

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function                                             old     new   delta
do_lzo_decompress                                    404     427     +23
f_read32                                              22       -     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-04-08 13:45:04 +02:00
parent 3a7d16d488
commit 15684bf545
1 changed files with 3 additions and 3 deletions
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6
archival/lzop.c
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@ -921,7 +921,7 @@ static void write_header(header_t *h)
h->flags32 = htonl(h->flags32); /* native endianness for lzo_compress() */ h->flags32 = htonl(h->flags32); /* native endianness for lzo_compress() */
/*f_*/write32(chksum_getresult(h->flags32)); write32(chksum_getresult(h->flags32));
} }
static int read_header(header_t *h) static int read_header(header_t *h)
@ -986,7 +986,7 @@ static int read_header(header_t *h)
/* UNUSED h->len_and_name[1+l] = 0; */ /* UNUSED h->len_and_name[1+l] = 0; */
checksum = chksum_getresult(h->flags32); checksum = chksum_getresult(h->flags32);
if (f_read32() != checksum) if (read32() != checksum)
return 2; return 2;
/* skip extra field [not used yet] */ /* skip extra field [not used yet] */
@ -1002,7 +1002,7 @@ static int read_header(header_t *h)
for (k = 0; k < extra_field_len; k++) for (k = 0; k < extra_field_len; k++)
f_read(&dummy, 1); f_read(&dummy, 1);
checksum = chksum_getresult(h->flags32); checksum = chksum_getresult(h->flags32);
extra_field_checksum = f_read32(); extra_field_checksum = read32();
if (extra_field_checksum != checksum) if (extra_field_checksum != checksum)
return 3; return 3;
} }