8 Jun
2018
8 Jun
'18
10:32 a.m.
On Fri, 2018-06-08 at 00:51 -0700, Ranjani Sridharan wrote:
/* atomically increment num channels in use */__sync_fetch_and_add(&dma->num_channels_busy, 1);Cant see where this is defined so this wont compile ? Please see arch/atomic.h for atomic arithmetic.
I have a question here:
Can I cast a uint32_t * to atomic_t * and then pass it to the atomic_add() function? Will it still be a atomic operation?
Why do you need to do this ? atomic_t can be used like a uint32_t within your code already.
Liam