From: Nicolin Chen <nicolinc@nvidia.com>
To: Pranjal Shrivastava <praan@google.com>
Cc: <will@kernel.org>, <robin.murphy@arm.com>, <jgg@nvidia.com>,
<joro@8bytes.org>, <kees@kernel.org>, <baolu.lu@linux.intel.com>,
<kevin.tian@intel.com>, <miko.lenczewski@arm.com>,
<smostafa@google.com>, <linux-arm-kernel@lists.infradead.org>,
<iommu@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
<stable@vger.kernel.org>, <jamien@nvidia.com>
Subject: Re: [PATCH rc v6 3/7] iommu/arm-smmu-v3: Do not enable EVTQ/PRIQ interrupts in kdump kernel
Date: Mon, 29 Jun 2026 22:36:18 -0700 [thread overview]
Message-ID: <akNV0vxHEgiuZSEZ@nvidia.com> (raw)
In-Reply-To: <akNM5peYovV3GdV4@google.com>
On Tue, Jun 30, 2026 at 04:58:14AM +0000, Pranjal Shrivastava wrote:
> is_kdump_kernel() ? 0 : IRQF_ONESHOT, note that devm_request_irq is just:
>
> static inline int __must_check
> devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler,
> unsigned long irqflags, const char *devname, void *dev_id)
> {
> return devm_request_threaded_irq(dev, irq, handler, NULL, irqflags | IRQF_COND_ONESHOT,
> devname, dev_id);
> }
>
> Not a strong opinion though, just suggesting a way to remove the if.
I've thought about that but kept the if-else on purpose:
- Using two ternaries doesn't seem a common practice to me.
- request_threaded_irq doesn't read as clean as request_irq
for GERROR to use -- one could wonder why "threaded".
Thanks
Nicolin
next prev parent reply other threads:[~2026-06-30 5:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 17:03 [PATCH rc v6 0/7] iommu/arm-smmu-v3: Fix device crash on kdump kernel Nicolin Chen
2026-05-20 17:03 ` [PATCH rc v6 1/7] iommu/arm-smmu-v3: Add arm_smmu_kdump_adopt_strtab() for kdump Nicolin Chen
2026-06-28 23:00 ` Pranjal Shrivastava
2026-06-29 4:01 ` Nicolin Chen
2026-05-20 17:03 ` [PATCH rc v6 2/7] iommu/arm-smmu-v3: Implement is_attach_deferred() " Nicolin Chen
2026-06-28 23:06 ` Pranjal Shrivastava
2026-05-20 17:03 ` [PATCH rc v6 3/7] iommu/arm-smmu-v3: Do not enable EVTQ/PRIQ interrupts in kdump kernel Nicolin Chen
2026-06-29 8:48 ` Pranjal Shrivastava
2026-06-30 4:14 ` Nicolin Chen
2026-06-30 4:58 ` Pranjal Shrivastava
2026-06-30 5:00 ` Pranjal Shrivastava
2026-06-30 5:36 ` Nicolin Chen [this message]
2026-05-20 17:03 ` [PATCH rc v6 4/7] iommu/arm-smmu-v3: Skip EVTQ/PRIQ setup " Nicolin Chen
2026-06-29 15:15 ` Pranjal Shrivastava
2026-06-30 4:17 ` Nicolin Chen
2026-06-30 5:01 ` Pranjal Shrivastava
2026-05-20 17:03 ` [PATCH rc v6 5/7] iommu/arm-smmu-v3: Retain CR0_SMMUEN during kdump device reset Nicolin Chen
2026-06-29 16:24 ` Pranjal Shrivastava
2026-05-20 17:03 ` [PATCH rc v6 6/7] iommu/arm-smmu-v3: Skip RMR bypass for kdump adoption Nicolin Chen
2026-06-29 16:28 ` Pranjal Shrivastava
2026-05-20 17:03 ` [PATCH rc v6 7/7] iommu/arm-smmu-v3: Detect ARM_SMMU_OPT_KDUMP_ADOPT in probe() Nicolin Chen
2026-06-29 16:40 ` Pranjal Shrivastava
2026-06-30 4:19 ` Nicolin Chen
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