From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Praveen Talari <praveen.talari@oss.qualcomm.com>,
Mark Brown <broonie@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org,
linux-kernel@vger.kernel.org, bjorn.andersson@oss.qualcomm.com,
dmitry.baryshkov@oss.qualcomm.com
Cc: prasad.sodagudi@oss.qualcomm.com,
mukesh.savaliya@oss.qualcomm.com, quic_vtanuku@quicinc.com,
aniket.randive@oss.qualcomm.com,
chandana.chiluveru@oss.qualcomm.com,
jyothi.seerapu@oss.qualcomm.com
Subject: Re: [PATCH v1 3/3] spi: geni-qcom: Add target abort support
Date: Thu, 29 Jan 2026 12:42:50 +0100 [thread overview]
Message-ID: <7c0883eb-3147-4b83-908b-b5c0ff909481@oss.qualcomm.com> (raw)
In-Reply-To: <700e3ce3-776f-4ee7-86e2-40608deffc0d@oss.qualcomm.com>
On 1/28/26 5:28 PM, Praveen Talari wrote:
> Hi Konrad
>
> On 1/27/2026 6:51 PM, Konrad Dybcio wrote:
>> On 1/22/26 4:10 PM, Praveen Talari wrote:
>>> SPI target mode currently lacks a mechanism to gracefully abort ongoing
>>> transfers when the client or core needs to cancel active transactions.
>>>
>>> Implement spi_geni_target_abort() to handle aborting SPI target
>>> operations when the client and core want to cancel ongoing transfers.
>>> This provides a mechanism for graceful termination of active SPI
>>> transactions in target mode.
>>>
>>> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
>>> ---
>>> drivers/spi/spi-geni-qcom.c | 14 ++++++++++++++
>>> 1 file changed, 14 insertions(+)
>>>
>>> diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
>>> index e5320e2fb834..231fd31de048 100644
>>> --- a/drivers/spi/spi-geni-qcom.c
>>> +++ b/drivers/spi/spi-geni-qcom.c
>>> @@ -1009,6 +1009,17 @@ static irqreturn_t geni_spi_isr(int irq, void *data)
>>> return IRQ_HANDLED;
>>> }
>>> +static int spi_geni_target_abort(struct spi_controller *spi)
>>> +{
>>> + if (!spi->cur_msg)
>>> + return 0;
>>> +
>>> + handle_se_timeout(spi, spi->cur_msg);
>>
>> I can't help but notice this function never even dereferences this
>> argument
>
> Yes, you’re correct. Since the argument is never dereferenced, it is safe to pass either cur_msg or NULL here.
Would you like to send a patch removing the unused argument?
Konrad
next prev parent reply other threads:[~2026-01-29 11:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 15:10 [PATCH v1 0/3] Improve SPI target mode support and error handling Praveen Talari
2026-01-22 15:10 ` [PATCH v1 1/3] spi: geni-qcom: Improve target mode allocation by using proper allocation functions Praveen Talari
2026-01-27 13:15 ` Konrad Dybcio
2026-01-28 16:32 ` Praveen Talari
2026-01-29 11:42 ` Konrad Dybcio
2026-01-29 15:45 ` Praveen Talari
2026-01-30 11:22 ` Konrad Dybcio
2026-01-22 15:10 ` [PATCH v1 2/3] spi: geni-qcom: Fix abort sequence execution for serial engine errors Praveen Talari
2026-01-27 13:17 ` Konrad Dybcio
2026-01-28 16:22 ` Praveen Talari
2026-01-29 11:48 ` Konrad Dybcio
2026-01-29 15:49 ` Praveen Talari
2026-01-29 15:10 ` [PATCH " Markus Elfring
2026-01-22 15:10 ` [PATCH v1 3/3] spi: geni-qcom: Add target abort support Praveen Talari
2026-01-27 13:21 ` Konrad Dybcio
2026-01-28 16:28 ` Praveen Talari
2026-01-29 11:42 ` Konrad Dybcio [this message]
2026-01-29 15:50 ` Praveen Talari
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