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media: vidtv: psi: extract descriptor chaining code into a helper 

The code to append a descriptor to the end of a chain is repeated
throughout the psi generator code. Extract it into its own helper
function to avoid cluttering.

Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Daniel W. S. Almeida 2020-10-31 16:05:50 +01:00 committed by Mauro Carvalho Chehab
parent 7a7899f6f5
commit 84306c96b1
1 changed files with 15 additions and 34 deletions
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49
drivers/media/test-drivers/vidtv/vidtv_psi.c
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@ -314,6 +314,16 @@ static u32 table_section_crc32_write_into(struct crc32_write_args args)
return nbytes;
}
static void vidtv_psi_desc_chain(struct vidtv_psi_desc *head, struct vidtv_psi_desc *desc)
{
if (head) {
while (head->next)
head = head->next;
head->next = desc;
}
}
struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc *head,
enum service_type service_type,
char *service_name,
@ -345,12 +355,7 @@ struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc
if (provider_name && provider_name_len)
desc->provider_name = kstrdup(provider_name, GFP_KERNEL);
if (head) {
while (head->next)
head = head->next;
head->next = (struct vidtv_psi_desc *)desc;
}
vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
return desc;
}
@ -376,13 +381,7 @@ struct vidtv_psi_desc_registration
additional_ident_info,
additional_info_len);
if (head) {
while (head->next)
head = head->next;
head->next = (struct vidtv_psi_desc *)desc;
}
vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
return desc;
}
@ -401,13 +400,7 @@ struct vidtv_psi_desc_network_name
if (network_name && network_name_len)
desc->network_name = kstrdup(network_name, GFP_KERNEL);
if (head) {
while (head->next)
head = head->next;
head->next = (struct vidtv_psi_desc *)desc;
}
vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
return desc;
}
@ -445,13 +438,7 @@ struct vidtv_psi_desc_service_list
desc->length = length;
desc->service_list = head_e;
if (head) {
while (head->next)
head = head->next;
head->next = (struct vidtv_psi_desc *)desc;
}
vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
return desc;
}
@ -490,13 +477,7 @@ struct vidtv_psi_desc_short_event
if (text && text_len)
desc->text = kstrdup(text, GFP_KERNEL);
if (head) {
while (head->next)
head = head->next;
head->next = (struct vidtv_psi_desc *)desc;
}
vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc);
return desc;
}