From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
praan@google.com, kevin.tian@intel.com, smostafa@google.com,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, jamien@nvidia.com
Subject: Re: [PATCH v9 09/12] iommu/arm-smmu-v3-kdump: Implement is_attach_deferred()
Date: Sat, 22 Aug 2026 17:02:26 -0300 [thread overview]
Message-ID: <20260822200226.GO244917@nvidia.com> (raw)
In-Reply-To: <aonng6MDJ/s/MRuE@nvidia.com>
On Sat, Aug 22, 2026 at 11:16:35AM -0700, Nicolin Chen wrote:
> On Fri, Aug 21, 2026 at 08:15:26PM -0300, Jason Gunthorpe wrote:
> > > @@ -1276,6 +1292,12 @@ arm_smmu_kdump_adopt_deferred_l2_strtab(struct arm_smmu_device *smmu, u32 sid,
> > > {
> > > return -EOPNOTSUPP;
> > > }
> > > +
> > > +static inline bool
> > > +arm_smmu_kdump_is_attach_deferred(struct arm_smmu_master *master)
> > > +{
> > > + return false;
> > > +}
> >
> >
> > ?
>
> This is for !CONFIG_CRASH_DUMP case. I think we need it.
Hmm, I am testing b4 review.. I had written
#define arm_smmu_kdump_is_attach_deferred NULL
?
And I now realize b4 review drops lines starting with a #
Jason
next prev parent reply other threads:[~2026-08-22 20:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-21 19:48 [PATCH v9 00/12] iommu/arm-smmu-v3: Adopt the crashed kernel's stream table for kdump Nicolin Chen
2026-07-21 19:48 ` [PATCH v9 01/12] iommu/arm-smmu-v3: Do not enable EVTQ/PRIQ interrupts in kdump kernel Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-08-22 18:12 ` Nicolin Chen
2026-07-21 19:48 ` [PATCH v9 02/12] iommu/arm-smmu-v3: Skip EVTQ/PRIQ setup " Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-08-22 18:22 ` Nicolin Chen
2026-07-21 19:48 ` [PATCH v9 03/12] iommu/arm-smmu-v3: Add strtab parse helpers to a new arm-smmu-v3-kexec.c Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-07-21 19:48 ` [PATCH v9 04/12] iommu/arm-smmu-v3: Destroy vmid_map ida via devres Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-07-21 19:48 ` [PATCH v9 05/12] iommu/arm-smmu-v3: Add ARM_SMMU_OPT_KDUMP_ADOPT for kdump kernel Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-07-21 19:48 ` [PATCH v9 06/12] iommu/arm-smmu-v3-kexec: Add a CD table parse helper Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-07-21 19:48 ` [PATCH v9 07/12] iommu/arm-smmu-v3-kexec: Add ASID/VMID reservation helpers Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-08-22 2:07 ` Nicolin Chen
2026-08-22 18:51 ` Nicolin Chen
2026-08-22 19:59 ` Jason Gunthorpe
2026-08-22 20:21 ` Nicolin Chen
2026-07-21 19:48 ` [PATCH v9 08/12] iommu/arm-smmu-v3-kdump: Reserve crashed kernel's ASIDs and VMIDs Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-08-22 18:14 ` Nicolin Chen
2026-07-21 19:48 ` [PATCH v9 09/12] iommu/arm-smmu-v3-kdump: Implement is_attach_deferred() Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-08-22 18:16 ` Nicolin Chen
2026-08-22 20:02 ` Jason Gunthorpe [this message]
2026-08-22 20:26 ` Nicolin Chen
2026-08-25 20:08 ` Konstantin Ryabitsev
2026-07-21 21:38 ` [PATCH v9 10/12] iommu/arm-smmu-v3: Retain CR0_SMMUEN during kdump device reset Nicolin Chen
2026-07-21 21:38 ` [PATCH v9 11/12] iommu/arm-smmu-v3: Skip RMR bypass for kdump adoption Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
2026-07-21 21:38 ` [PATCH v9 12/12] iommu/arm-smmu-v3: Detect ARM_SMMU_OPT_KDUMP_ADOPT in probe() Nicolin Chen
2026-08-21 23:15 ` Jason Gunthorpe
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