2021-03-08 08:47:21

by Pawel Laszczak

Subject: [PATCH v2] usb: cdnsp: Fixes incorrect value in ISOC TRB

From: Pawel Laszczak <[email protected]>

Fixes issue with priority of operator. Operator "|" priority is
higher then "? :".
To improve the readability the operator "? :" has been replaced with
"if ()" statement.

Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Signed-off-by: Pawel Laszczak <[email protected]>

---
Changelog:
v2:
- changed the commit log
- added separate "if" statement to improve readability

drivers/usb/cdns3/cdnsp-ring.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
index e15e13ba27dc..b23f09a68427 100644
--- a/drivers/usb/cdns3/cdnsp-ring.c
+++ b/drivers/usb/cdns3/cdnsp-ring.c
@@ -2198,7 +2198,10 @@ static int cdnsp_queue_isoc_tx(struct cdnsp_device *pdev,
* inverted in the first TDs isoc TRB.
*/
field = TRB_TYPE(TRB_ISOC) | TRB_TLBPC(last_burst_pkt) |
- start_cycle ? 0 : 1 | TRB_SIA | TRB_TBC(burst_count);
+ TRB_SIA | TRB_TBC(burst_count);
+
+ if (!start_cycle)
+ field |= TRB_CYCLE;

/* Fill the rest of the TRB fields, and remaining normal TRBs. */
for (i = 0; i < trbs_per_td; i++) {
--
2.25.1

2021-03-08 08:47:29

by Greg Kroah-Hartman

Subject: Re: [PATCH v2] usb: cdnsp: Fixes incorrect value in ISOC TRB

On Mon, Mar 08, 2021 at 08:31:03AM +0100, Pawel Laszczak wrote:
> From: Pawel Laszczak <[email protected]>
>
> Fixes issue with priority of operator. Operator "|" priority is
> higher then "? :".
> To improve the readability the operator "? :" has been replaced with
> "if ()" statement.
>
> Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
> Signed-off-by: Pawel Laszczak <[email protected]>
>
> ---
> Changelog:
> v2:
> - changed the commit log
> - added separate "if" statement to improve readability
>
> drivers/usb/cdns3/cdnsp-ring.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
> index e15e13ba27dc..b23f09a68427 100644
> --- a/drivers/usb/cdns3/cdnsp-ring.c
> +++ b/drivers/usb/cdns3/cdnsp-ring.c
> @@ -2198,7 +2198,10 @@ static int cdnsp_queue_isoc_tx(struct cdnsp_device *pdev,
> * inverted in the first TDs isoc TRB.
> */
> field = TRB_TYPE(TRB_ISOC) | TRB_TLBPC(last_burst_pkt) |
> - start_cycle ? 0 : 1 | TRB_SIA | TRB_TBC(burst_count);
> + TRB_SIA | TRB_TBC(burst_count);
> +
> + if (!start_cycle)
> + field |= TRB_CYCLE;

Thank you for the change:

Reviewed-by: Greg Kroah-Hartman <[email protected]>