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media: vidtv: extract the initial CRC value to into a #define

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The same constant (0xffffffff) is used in three different functions.

Extract it into a #define to avoid repetition.

Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Daniel W. S. Almeida 2020-10-31 16:05:47 +01:00 committed by Mauro Carvalho Chehab
parent 9215f6bb47
commit dd6dbe8d7e
1 changed files with 4 additions and 3 deletions
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7
drivers/media/test-drivers/vidtv/vidtv_psi.c
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@ -31,6 +31,7 @@
#define CRC_SIZE_IN_BYTES 4
#define MAX_VERSION_NUM 32
#define INITIAL_CRC 0xffffffff
static const u32 CRC_LUT[256] = {
/* from libdvbv5 */
@ -784,7 +785,7 @@ u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args args)
/* the number of bytes written by this function */
u32 nbytes = 0;
const u16 pat_pid = VIDTV_PAT_PID;
u32 crc = 0xffffffff;
u32 crc = INITIAL_CRC;
struct vidtv_psi_table_pat_program *p = args.pat->program;
@ -974,7 +975,7 @@ u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args args)
{
/* the number of bytes written by this function */
u32 nbytes = 0;
u32 crc = 0xffffffff;
u32 crc = INITIAL_CRC;
struct vidtv_psi_desc *table_descriptor = args.pmt->descriptor;
struct vidtv_psi_table_pmt_stream *stream = args.pmt->stream;
@ -1124,7 +1125,7 @@ u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args args)
u32 nbytes = 0;
u16 sdt_pid = VIDTV_SDT_PID; /* see ETSI EN 300 468 v1.15.1 p. 11 */
u32 crc = 0xffffffff;
u32 crc = INITIAL_CRC;
struct vidtv_psi_table_sdt_service *service = args.sdt->service;
struct vidtv_psi_desc *service_desc = (args.sdt->service) ?