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[PATCH] dvb: dst: remove redundant checksum calculation 

removes the redundant checksum calculation, which was also exported from the
dst.c module

Signed-off-by: Perceval Anichini <perceval.anichini@streamvision.fr>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Perceval Anichini 2005-11-08 21:35:23 -08:00 committed by Linus Torvalds
parent f5648e8a68
commit 4fbbc7ee59
1 changed files with 5 additions and 19 deletions
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24
drivers/media/dvb/bt8xx/dst_ca.c
View File

@ -69,26 +69,12 @@ static int ca_set_pid(void)
}
static int put_checksum(u8 *check_string, int length)
static void put_checksum(u8 *check_string, int length)
{
u8 i = 0, checksum = 0;
dprintk(verbose, DST_CA_DEBUG, 1, " ========================= Checksum calculation ===========================");
dprintk(verbose, DST_CA_DEBUG, 1, " String Length=[0x%02x]", length);
dprintk(verbose, DST_CA_DEBUG, 1, " String=[");
while (i < length) {
dprintk(verbose, DST_CA_DEBUG, 0, " %02x", check_string[i]);
checksum += check_string[i];
i++;
}
dprintk(verbose, DST_CA_DEBUG, 0, " ]\n");
dprintk(verbose, DST_CA_DEBUG, 1, "Sum=[%02x]\n", checksum);
check_string[length] = ~checksum + 1;
dprintk(verbose, DST_CA_DEBUG, 1, " Checksum=[%02x]", check_string[length]);
dprintk(verbose, DST_CA_DEBUG, 1, " ==========================================================================");
return 0;
dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
check_string[length] = dst_check_sum (check_string, length);
dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
}
static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)