A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

vio: create routines for inc,dec vio dring indexes

Browse source 
Both sunvdc and sunvnet implemented distinct functionality for incrementing
and decrementing dring indexes. Create common functions for use by both
from the sunvnet versions, which were chosen since they will still work
correctly in case a non power of two ring size is used.

Signed-off-by: Dwight Engen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Dwight Engen 2014-12-11 12:26:15 -05:00 • committed by David S. Miller
commit fe47c3c262
3 changed files with 25 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/block/sunvdc.c
View file

@ -269,7 +269,7 @@ static void vdc_end_one(struct vdc_port *port, struct vio_dring_state *dr,
ldc_unmap(port->vio.lp, desc->cookies, desc->ncookies);
desc->hdr.state = VIO_DESC_FREE;
dr->cons = (index + 1) & (VDC_TX_RING_SIZE - 1);
dr->cons = vio_dring_next(dr, index);
req = rqe->req;
if (req == NULL) {
@ -472,7 +472,7 @@ static int __send_request(struct request *req)
printk(KERN_ERR PFX "vdc_tx_trigger() failure, err=%d\n", err);
} else {
port->req_id++;
dr->prod = (dr->prod + 1) & (VDC_TX_RING_SIZE - 1);
dr->prod = vio_dring_next(dr, dr->prod);
}
return err;
@ -626,7 +626,7 @@ static int generic_request(struct vdc_port *port, u8 op, void *buf, int len)
err = __vdc_tx_trigger(port);
if (err >= 0) {
port->req_id++;
dr->prod = (dr->prod + 1) & (VDC_TX_RING_SIZE - 1);
dr->prod = vio_dring_next(dr, dr->prod);
spin_unlock_irqrestore(&port->vio.lock, flags);
wait_for_completion(&comp.com);