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SubjectRe: [Outreachy kernel] [PATCH] staging: vc04_services: Remove typedef struct


On Fri, 22 Sep 2017, Harsha Sharma wrote:

> Remove typedef from struct as linux-kernel coding style tends to
> avoid using typedefs
>
> Done using following coccinelle semantic patch
>
> @r1@
> type T;
> @@
>
> typedef struct { ... } T;
>
> @script:python c1@
> T2;
> T << r1.T;
> @@
> if T[-2:] =="_t" or T[-2:] == "_T":
> coccinelle.T2 = T[:-2];
> else:
> coccinelle.T2 = T;
>
> print T, coccinelle.T2

Could you also convert the structure name to lowercase?

julia

>
> @r2@
> type r1.T;
> identifier c1.T2;
> @@
> -typedef
> struct
> + T2
> { ... }
> -T
> ;
>
> @r3@
> type r1.T;
> identifier c1.T2;
> @@
> -T
> +struct T2
>
> Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
> ---
> .../vc04_services/interface/vchiq_arm/vchiq_shim.c | 44 +++++++++++-----------
> 1 file changed, 22 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
> index 8af95fc..adb602d 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
> @@ -41,14 +41,14 @@
>
> #define vchiq_status_to_vchi(status) ((int32_t)status)
>
> -typedef struct {
> +struct SHIM_SERVICE {
> VCHIQ_SERVICE_HANDLE_T handle;
>
> VCHIU_QUEUE_T queue;
>
> VCHI_CALLBACK_T callback;
> void *callback_param;
> -} SHIM_SERVICE_T;
> +};
>
> /* ----------------------------------------------------------------------
> * return pointer to the mphi message driver function table
> @@ -99,7 +99,7 @@ int32_t vchi_msg_peek(VCHI_SERVICE_HANDLE_T handle,
> uint32_t *msg_size,
> VCHI_FLAGS_T flags)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_HEADER_T *header;
>
> WARN_ON((flags != VCHI_FLAGS_NONE) &&
> @@ -131,7 +131,7 @@ int32_t vchi_msg_peek(VCHI_SERVICE_HANDLE_T handle,
> ***********************************************************/
> int32_t vchi_msg_remove(VCHI_SERVICE_HANDLE_T handle)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_HEADER_T *header;
>
> header = vchiu_queue_pop(&service->queue);
> @@ -163,7 +163,7 @@ int32_t vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle,
> void *context,
> uint32_t data_size)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_STATUS_T status;
>
> while (1) {
> @@ -262,7 +262,7 @@ int32_t vchi_bulk_queue_receive(VCHI_SERVICE_HANDLE_T handle,
> VCHI_FLAGS_T flags,
> void *bulk_handle)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_BULK_MODE_T mode;
> VCHIQ_STATUS_T status;
>
> @@ -322,7 +322,7 @@ int32_t vchi_bulk_queue_transmit(VCHI_SERVICE_HANDLE_T handle,
> VCHI_FLAGS_T flags,
> void *bulk_handle)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_BULK_MODE_T mode;
> VCHIQ_STATUS_T status;
>
> @@ -384,7 +384,7 @@ int32_t vchi_msg_dequeue(VCHI_SERVICE_HANDLE_T handle,
> uint32_t *actual_msg_size,
> VCHI_FLAGS_T flags)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_HEADER_T *header;
>
> WARN_ON((flags != VCHI_FLAGS_NONE) &&
> @@ -458,7 +458,7 @@ int32_t vchi_msg_hold(VCHI_SERVICE_HANDLE_T handle,
> VCHI_FLAGS_T flags,
> VCHI_HELD_MSG_T *message_handle)
> {
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_HEADER_T *header;
>
> WARN_ON((flags != VCHI_FLAGS_NONE) &&
> @@ -579,8 +579,8 @@ int32_t vchi_disconnect(VCHI_INSTANCE_T instance_handle)
> static VCHIQ_STATUS_T shim_callback(VCHIQ_REASON_T reason,
> VCHIQ_HEADER_T *header, VCHIQ_SERVICE_HANDLE_T handle, void *bulk_user)
> {
> - SHIM_SERVICE_T *service =
> - (SHIM_SERVICE_T *)VCHIQ_GET_SERVICE_USERDATA(handle);
> + struct SHIM_SERVICE *service =
> + (struct SHIM_SERVICE *)VCHIQ_GET_SERVICE_USERDATA(handle);
>
> if (!service->callback)
> goto release;
> @@ -637,10 +637,10 @@ static VCHIQ_STATUS_T shim_callback(VCHIQ_REASON_T reason,
> return VCHIQ_SUCCESS;
> }
>
> -static SHIM_SERVICE_T *service_alloc(VCHIQ_INSTANCE_T instance,
> +static struct SHIM_SERVICE *service_alloc(VCHIQ_INSTANCE_T instance,
> SERVICE_CREATION_T *setup)
> {
> - SHIM_SERVICE_T *service = kzalloc(sizeof(SHIM_SERVICE_T), GFP_KERNEL);
> + struct SHIM_SERVICE *service = kzalloc(sizeof(struct SHIM_SERVICE), GFP_KERNEL);
>
> (void)instance;
>
> @@ -657,7 +657,7 @@ static SHIM_SERVICE_T *service_alloc(VCHIQ_INSTANCE_T instance,
> return service;
> }
>
> -static void service_free(SHIM_SERVICE_T *service)
> +static void service_free(struct SHIM_SERVICE *service)
> {
> if (service) {
> vchiu_queue_delete(&service->queue);
> @@ -670,7 +670,7 @@ int32_t vchi_service_open(VCHI_INSTANCE_T instance_handle,
> VCHI_SERVICE_HANDLE_T *handle)
> {
> VCHIQ_INSTANCE_T instance = (VCHIQ_INSTANCE_T)instance_handle;
> - SHIM_SERVICE_T *service = service_alloc(instance, setup);
> + struct SHIM_SERVICE *service = service_alloc(instance, setup);
>
> *handle = (VCHI_SERVICE_HANDLE_T)service;
>
> @@ -703,7 +703,7 @@ int32_t vchi_service_create(VCHI_INSTANCE_T instance_handle,
> VCHI_SERVICE_HANDLE_T *handle)
> {
> VCHIQ_INSTANCE_T instance = (VCHIQ_INSTANCE_T)instance_handle;
> - SHIM_SERVICE_T *service = service_alloc(instance, setup);
> + struct SHIM_SERVICE *service = service_alloc(instance, setup);
>
> *handle = (VCHI_SERVICE_HANDLE_T)service;
>
> @@ -733,7 +733,7 @@ int32_t vchi_service_create(VCHI_INSTANCE_T instance_handle,
> int32_t vchi_service_close(const VCHI_SERVICE_HANDLE_T handle)
> {
> int32_t ret = -1;
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
>
> if (service) {
> VCHIQ_STATUS_T status = vchiq_close_service(service->handle);
> @@ -751,7 +751,7 @@ int32_t vchi_service_close(const VCHI_SERVICE_HANDLE_T handle)
> int32_t vchi_service_destroy(const VCHI_SERVICE_HANDLE_T handle)
> {
> int32_t ret = -1;
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
>
> if (service) {
> VCHIQ_STATUS_T status = vchiq_remove_service(service->handle);
> @@ -772,7 +772,7 @@ int32_t vchi_service_set_option(const VCHI_SERVICE_HANDLE_T handle,
> int value)
> {
> int32_t ret = -1;
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> VCHIQ_SERVICE_OPTION_T vchiq_option;
>
> switch (option) {
> @@ -801,7 +801,7 @@ int32_t vchi_service_set_option(const VCHI_SERVICE_HANDLE_T handle,
> int32_t vchi_get_peer_version(const VCHI_SERVICE_HANDLE_T handle, short *peer_version)
> {
> int32_t ret = -1;
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
>
> if (service)
> {
> @@ -828,7 +828,7 @@ int32_t vchi_service_use(const VCHI_SERVICE_HANDLE_T handle)
> {
> int32_t ret = -1;
>
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> if (service)
> ret = vchiq_status_to_vchi(vchiq_use_service(service->handle));
> return ret;
> @@ -849,7 +849,7 @@ int32_t vchi_service_release(const VCHI_SERVICE_HANDLE_T handle)
> {
> int32_t ret = -1;
>
> - SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
> + struct SHIM_SERVICE *service = (struct SHIM_SERVICE *)handle;
> if (service)
> ret = vchiq_status_to_vchi(
> vchiq_release_service(service->handle));
> --
> 1.9.1
>
> --
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