[PATCH 25/25] soc: fsl: qbman: qman: Remove unused variable 'dequeue_wq'

2020-11-03 Thread Lee Jones
Fixes the following W=1 kernel build warning(s):

 drivers/soc/fsl/qbman/qman.c: In function ‘qman_shutdown_fq’:
 drivers/soc/fsl/qbman/qman.c:2700:8: warning: variable ‘dequeue_wq’ set but 
not used [-Wunused-but-set-variable]

Cc: Li Yang 
Cc: YueHaibing 
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones 
---
 drivers/soc/fsl/qbman/qman.c | 8 ++--
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index 9888a70618730..62b182c3a8b04 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -2622,7 +2622,7 @@ int qman_shutdown_fq(u32 fqid)
union qm_mc_command *mcc;
union qm_mc_result *mcr;
int orl_empty, drain = 0, ret = 0;
-   u32 channel, wq, res;
+   u32 channel, res;
u8 state;
 
p = get_affine_portal();
@@ -2655,7 +2655,7 @@ int qman_shutdown_fq(u32 fqid)
DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
/* Need to store these since the MCR gets reused */
channel = qm_fqd_get_chan(&mcr->queryfq.fqd);
-   wq = qm_fqd_get_wq(&mcr->queryfq.fqd);
+   qm_fqd_get_wq(&mcr->queryfq.fqd);
 
if (channel < qm_channel_pool1) {
channel_portal = get_portal_for_channel(channel);
@@ -2697,7 +2697,6 @@ int qman_shutdown_fq(u32 fqid)
 * to dequeue from the channel the FQ is scheduled on
 */
int found_fqrn = 0;
-   u16 dequeue_wq = 0;
 
/* Flag that we need to drain FQ */
drain = 1;
@@ -2705,11 +2704,8 @@ int qman_shutdown_fq(u32 fqid)
if (channel >= qm_channel_pool1 &&
channel < qm_channel_pool1 + 15) {
/* Pool channel, enable the bit in the portal */
-   dequeue_wq = (channel -
- qm_channel_pool1 + 1)<<4 | wq;
} else if (channel < qm_channel_pool1) {
/* Dedicated channel */
-   dequeue_wq = wq;
} else {
dev_err(dev, "Can't recover FQ 0x%x, ch: 0x%x",
fqid, channel);
-- 
2.25.1



Re: [PATCH 25/25] soc: fsl: qbman: qman: Remove unused variable 'dequeue_wq'

2020-11-23 Thread Li Yang
Hi Roy,

On Tue, Nov 3, 2020 at 9:31 AM Lee Jones  wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/soc/fsl/qbman/qman.c: In function ‘qman_shutdown_fq’:
>  drivers/soc/fsl/qbman/qman.c:2700:8: warning: variable ‘dequeue_wq’ set but 
> not used [-Wunused-but-set-variable]
>
> Cc: Li Yang 
> Cc: YueHaibing 
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Lee Jones 
> ---
>  drivers/soc/fsl/qbman/qman.c | 8 ++--
>  1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
> index 9888a70618730..62b182c3a8b04 100644
> --- a/drivers/soc/fsl/qbman/qman.c
> +++ b/drivers/soc/fsl/qbman/qman.c
> @@ -2622,7 +2622,7 @@ int qman_shutdown_fq(u32 fqid)
> union qm_mc_command *mcc;
> union qm_mc_result *mcr;
> int orl_empty, drain = 0, ret = 0;
> -   u32 channel, wq, res;
> +   u32 channel, res;
> u8 state;
>
> p = get_affine_portal();
> @@ -2655,7 +2655,7 @@ int qman_shutdown_fq(u32 fqid)
> DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
> /* Need to store these since the MCR gets reused */
> channel = qm_fqd_get_chan(&mcr->queryfq.fqd);
> -   wq = qm_fqd_get_wq(&mcr->queryfq.fqd);
> +   qm_fqd_get_wq(&mcr->queryfq.fqd);

This probably is not needed also.

>
> if (channel < qm_channel_pool1) {
> channel_portal = get_portal_for_channel(channel);
> @@ -2697,7 +2697,6 @@ int qman_shutdown_fq(u32 fqid)
>  * to dequeue from the channel the FQ is scheduled on
>  */
> int found_fqrn = 0;
> -   u16 dequeue_wq = 0;
>
> /* Flag that we need to drain FQ */
> drain = 1;
> @@ -2705,11 +2704,8 @@ int qman_shutdown_fq(u32 fqid)
> if (channel >= qm_channel_pool1 &&
> channel < qm_channel_pool1 + 15) {
> /* Pool channel, enable the bit in the portal 
> */
> -   dequeue_wq = (channel -
> - qm_channel_pool1 + 1)<<4 | wq;
> } else if (channel < qm_channel_pool1) {
> /* Dedicated channel */
> -   dequeue_wq = wq;

With these gone, these if statements seem to be redundant.  Can you
propose an additional patch to further cleanup the code here?  Thanks.

> } else {
> dev_err(dev, "Can't recover FQ 0x%x, ch: 
> 0x%x",
> fqid, channel);
> --
> 2.25.1
>