* @state: for use by whichever driver currently owns the message
* @resources: for resource management when the SPI message is processed
* @prepared: spi_prepare_message was called for the this message
- * @t: for use with spi_message_alloc() when message and transfers have
- * been allocated together
*
* A @spi_message is used to execute an atomic sequence of data transfers,
* each represented by a struct spi_transfer. The sequence is "atomic"
/* List of spi_res resources when the SPI message is processed */
struct list_head resources;
-
- /* For embedding transfers into the memory of the message */
- struct spi_transfer t[];
};
static inline void spi_message_init_no_memset(struct spi_message *m)
*/
static inline struct spi_message *spi_message_alloc(unsigned ntrans, gfp_t flags)
{
- struct spi_message *m;
+ struct spi_message_with_transfers {
+ struct spi_message m;
+ struct spi_transfer t[];
+ } *mwt;
+ unsigned i;
+
+ mwt = kzalloc(struct_size(mwt, t, ntrans), flags);
+ if (!mwt)
+ return NULL;
- m = kzalloc(struct_size(m, t, ntrans), flags);
- if (m) {
- unsigned i;
+ spi_message_init_no_memset(&mwt->m);
+ for (i = 0; i < ntrans; i++)
+ spi_message_add_tail(&mwt->t[i], &mwt->m);
- spi_message_init_no_memset(m);
- for (i = 0; i < ntrans; i++)
- spi_message_add_tail(&m->t[i], m);
- }
- return m;
+ return &mwt->m;
}
static inline void spi_message_free(struct spi_message *m)