Commit dd6dbe8d authored by Daniel W. S. Almeida's avatar Daniel W. S. Almeida Committed by Mauro Carvalho Chehab
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media: vidtv: extract the initial CRC value to into a #define 



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

Extract it into a #define to avoid repetition.

Signed-off-by: default avatarDaniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 9215f6bb

drivers/media/test-drivers/vidtv/vidtv_psi.c

+4 −3
Original line number Diff line number Diff line
@@ -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) ?