* [PATCH] mpt3sas: Improvised loop logic
@ 2023-10-20 10:58 Ranjan Kumar
2023-10-25 2:35 ` Martin K. Petersen
2023-10-30 15:34 ` Martin K. Petersen
0 siblings, 2 replies; 3+ messages in thread
From: Ranjan Kumar @ 2023-10-20 10:58 UTC (permalink / raw)
To: linux-scsi, martin.petersen
Cc: sathya.prakash, sreekanth.reddy, Ranjan Kumar, stable
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The loop continues to iterate until the count reaches 30,
even after receiving the correct value.That is fixed by
breaking when non-zero value is read.
Fixes: 4ca10f3e3174 ("mpt3sas: Perform additional retries if doorbell read returns 0")
Cc: stable@vger.kernel.org
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 61a32bf00747..a75f670bf551 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -223,8 +223,8 @@ _base_readl_ext_retry(const void __iomem *addr)
for (i = 0 ; i < 30 ; i++) {
ret_val = readl(addr);
- if (ret_val == 0)
- continue;
+ if (ret_val != 0)
+ break;
}
return ret_val;
--
2.31.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] mpt3sas: Improvised loop logic
2023-10-20 10:58 [PATCH] mpt3sas: Improvised loop logic Ranjan Kumar
@ 2023-10-25 2:35 ` Martin K. Petersen
2023-10-30 15:34 ` Martin K. Petersen
1 sibling, 0 replies; 3+ messages in thread
From: Martin K. Petersen @ 2023-10-25 2:35 UTC (permalink / raw)
To: Ranjan Kumar
Cc: linux-scsi, martin.petersen, sathya.prakash, sreekanth.reddy,
stable
Ranjan,
> The loop continues to iterate until the count reaches 30, even after
> receiving the correct value.That is fixed by breaking when non-zero
> value is read.
Applied to 6.7/scsi-staging, thanks!
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] mpt3sas: Improvised loop logic
2023-10-20 10:58 [PATCH] mpt3sas: Improvised loop logic Ranjan Kumar
2023-10-25 2:35 ` Martin K. Petersen
@ 2023-10-30 15:34 ` Martin K. Petersen
1 sibling, 0 replies; 3+ messages in thread
From: Martin K. Petersen @ 2023-10-30 15:34 UTC (permalink / raw)
To: linux-scsi, Ranjan Kumar
Cc: Martin K . Petersen, sathya.prakash, sreekanth.reddy, stable
On Fri, 20 Oct 2023 16:28:49 +0530, Ranjan Kumar wrote:
> The loop continues to iterate until the count reaches 30,
> even after receiving the correct value.That is fixed by
> breaking when non-zero value is read.
>
>
Applied to 6.7/scsi-queue, thanks!
[1/1] mpt3sas: Improvised loop logic
https://git.kernel.org/mkp/scsi/c/3c978492c333
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 3+ messages in thread
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