From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
"Daniel W. S. Almeida" <dwlsalmeida@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org
Subject: [PATCH 24/31] media: vidtv: cleanup PAT write function
Date: Tue, 24 Nov 2020 12:06:20 +0100 [thread overview]
Message-ID: <ed8a1649e444d96d10f04f2659842cacc45ddc68.1606215584.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1606215584.git.mchehab+huawei@kernel.org>
Avoid initializing the structs multiple times and pass the
PAT struct as a pointer, instead of a var.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/media/test-drivers/vidtv/vidtv_mux.c | 2 +-
drivers/media/test-drivers/vidtv/vidtv_psi.c | 57 ++++++++++----------
drivers/media/test-drivers/vidtv/vidtv_psi.h | 2 +-
3 files changed, 32 insertions(+), 29 deletions(-)
diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.c b/drivers/media/test-drivers/vidtv/vidtv_mux.c
index 0cf784c09024..200a8000603f 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_mux.c
+++ b/drivers/media/test-drivers/vidtv/vidtv_mux.c
@@ -173,7 +173,7 @@ static u32 vidtv_mux_push_si(struct vidtv_mux *m)
pat_args.offset = m->mux_buf_offset;
pat_args.continuity_counter = &pat_ctx->cc;
- m->mux_buf_offset += vidtv_psi_pat_write_into(pat_args);
+ m->mux_buf_offset += vidtv_psi_pat_write_into(&pat_args);
for (i = 0; i < m->si.pat->num_pmt; ++i) {
pmt_pid = vidtv_psi_pmt_get_pid(m->si.pmt_secs[i],
diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.c b/drivers/media/test-drivers/vidtv/vidtv_psi.c
index 1bc13b0d5fc6..29f35d5faf25 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_psi.c
+++ b/drivers/media/test-drivers/vidtv/vidtv_psi.c
@@ -961,57 +961,60 @@ struct vidtv_psi_table_pat *vidtv_psi_pat_table_init(u16 transport_stream_id)
return pat;
}
-u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args args)
+u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args)
{
- struct vidtv_psi_table_pat_program *p = args.pat->program;
- struct header_write_args h_args = {};
- struct psi_write_args psi_args = {};
- struct crc32_write_args c_args = {};
- const u16 pat_pid = VIDTV_PAT_PID;
+ struct vidtv_psi_table_pat_program *p = args->pat->program;
+ struct header_write_args h_args = {
+ .dest_buf = args->buf,
+ .dest_offset = args->offset,
+ .pid = VIDTV_PAT_PID,
+ .h = &args->pat->header,
+ .continuity_counter = args->continuity_counter,
+ .dest_buf_sz = args->buf_sz,
+ };
+ struct psi_write_args psi_args = {
+ .dest_buf = args->buf,
+ .pid = VIDTV_PAT_PID,
+ .new_psi_section = false,
+ .continuity_counter = args->continuity_counter,
+ .is_crc = false,
+ .dest_buf_sz = args->buf_sz,
+ };
+ struct crc32_write_args c_args = {
+ .dest_buf = args->buf,
+ .pid = VIDTV_PAT_PID,
+ .dest_buf_sz = args->buf_sz,
+ };
u32 crc = INITIAL_CRC;
u32 nbytes = 0;
- vidtv_psi_pat_table_update_sec_len(args.pat);
+ vidtv_psi_pat_table_update_sec_len(args->pat);
- h_args.dest_buf = args.buf;
- h_args.dest_offset = args.offset;
- h_args.h = &args.pat->header;
- h_args.pid = pat_pid;
- h_args.continuity_counter = args.continuity_counter;
- h_args.dest_buf_sz = args.buf_sz;
h_args.crc = &crc;
nbytes += vidtv_psi_table_header_write_into(&h_args);
/* note that the field 'u16 programs' is not really part of the PAT */
- psi_args.dest_buf = args.buf;
- psi_args.pid = pat_pid;
- psi_args.new_psi_section = false;
- psi_args.continuity_counter = args.continuity_counter;
- psi_args.is_crc = false;
- psi_args.dest_buf_sz = args.buf_sz;
- psi_args.crc = &crc;
+ psi_args.crc = &crc;
while (p) {
/* copy the PAT programs */
psi_args.from = p;
/* skip the pointer */
psi_args.len = sizeof(*p) -
- sizeof(struct vidtv_psi_table_pat_program *);
- psi_args.dest_offset = args.offset + nbytes;
+ sizeof(struct vidtv_psi_table_pat_program *);
+ psi_args.dest_offset = args->offset + nbytes;
+ psi_args.continuity_counter = args->continuity_counter;
nbytes += vidtv_psi_ts_psi_write_into(&psi_args);
p = p->next;
}
- c_args.dest_buf = args.buf;
- c_args.dest_offset = args.offset + nbytes;
+ c_args.dest_offset = args->offset + nbytes;
+ c_args.continuity_counter = args->continuity_counter;
c_args.crc = cpu_to_be32(crc);
- c_args.pid = pat_pid;
- c_args.continuity_counter = args.continuity_counter;
- c_args.dest_buf_sz = args.buf_sz;
/* Write the CRC32 at the end */
nbytes += table_section_crc32_write_into(&c_args);
diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.h b/drivers/media/test-drivers/vidtv/vidtv_psi.h
index 1bf0103e6840..ba5c91a0d387 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_psi.h
+++ b/drivers/media/test-drivers/vidtv/vidtv_psi.h
@@ -556,7 +556,7 @@ struct vidtv_psi_pat_write_args {
* equal to the size of the PAT, since more space is needed for TS headers during TS
* encapsulation.
*/
-u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args args);
+u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args);
/**
* struct vidtv_psi_sdt_write_args - Arguments for writing a SDT table
--
2.28.0
next prev parent reply other threads:[~2020-11-24 11:07 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-24 11:05 [PATCH 00/31] vidtv: address several issues at the driver Mauro Carvalho Chehab
2020-11-24 11:05 ` [PATCH 01/31] media: vidtv: reorganize includes Mauro Carvalho Chehab
2020-11-24 11:05 ` [PATCH 02/31] media: vidtv: add error checks Mauro Carvalho Chehab
2020-11-24 11:05 ` [PATCH 03/31] media: vidtv: don't use recursive functions Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 04/31] media: vidtv: fix the name of the program Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 05/31] media: vidtv: fix the tone generator logic Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 06/31] media: vidtv: fix some notes at the tone generator Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 07/31] media: vidtv: avoid data copy when initializing the multiplexer Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 08/31] media: vidtv: avoid copying data for PES structs Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 09/31] media: vidtv: do some cleanups at the driver Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 10/31] media: vidtv: remove some unused functions Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 11/31] media: vidtv: pre-initialize mux arrays Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 12/31] media: vidtv: cleanup null packet initialization logic Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 13/31] media: vidtv: improve EIT data Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 14/31] media: vidtv: fix the network ID range Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 15/31] media: vidtv: properly fill EIT service_id Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 16/31] media: vidtv: add a PID entry for the NIT table Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 17/31] media: vidtv: fix service type Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 18/31] media: vidtv: fix service_id at SDT table Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 19/31] media: vidtv: add date to the current event Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 20/31] media: vidtv: simplify PSI write function Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 21/31] media: vidtv: simplify the crc writing logic Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 22/31] media: vidtv: cleanup PSI descriptor write function Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 23/31] media: vidtv: cleanup PSI table header function Mauro Carvalho Chehab
2020-11-24 11:06 ` Mauro Carvalho Chehab [this message]
2020-11-24 11:06 ` [PATCH 25/31] media: vidtv: cleanup PMT write table function Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 26/31] media: vidtv: simplify SDT write function Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 27/31] media: vidtv: simplify NIT " Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 28/31] media: vidtv: simplify EIT " Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 29/31] media: vidtv.rst: update vidtv documentation Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 30/31] media: vidtv.rst: add kernel-doc markups Mauro Carvalho Chehab
2020-11-24 11:06 ` [PATCH 31/31] media: vidtv: cleanup a few coding style issues Mauro Carvalho Chehab
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