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Varun Sethi
5a9137a66b
iommu/fsl: Fix warning resulting from adding PCI device twice
iommu_group_get_for_dev determines the iommu group for the PCI device and adds
the device to the group.
In the PAMU driver we were again adding the device to the same group without checking
if the device already had an iommu group. This resulted in the following warning.
sysfs: cannot create duplicate filename '/devices/ffe200000.pcie/pci0000:00/0000:00:00.0/iommu_group'
------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:31
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-00002-g7505cea-dirty #126
task: c0000001fe0a0000 ti: c0000001fe044000 task.ti: c0000001fe044000
NIP: c00000000018879c LR: c000000000188798 CTR: c00000000001ea50
REGS: c0000001fe047040 TRAP: 0700 Not tainted (3.17.0-rc3-00002-g7505cea-dirty)
MSR: 0000000080029000 <CE,EE,ME> CR: 24ad8e22 XER: 20000000
SOFTE: 1
GPR00: c000000000188798 c0000001fe0472c0 c0000000009a52e0 0000000000000065
GPR04: 0000000000000001 0000000000000000 3a30303a00000000 0000000027000000
GPR08: 2f696f6d00000000 c0000000008d3830 c0000000009b3938 c0000000009bb3d0
GPR12: 0000000028ad8e24 c00000000fff4000 c00000000000205c 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000008a4c70
GPR24: c0000000007e9010 c0000001fe0140a8 ffffffffffffffef 0000000000000001
GPR28: c0000001fe22ebb8 c0000000007e9010 c00000000090bf10 c0000001fe220000
NIP [c00000000018879c] .sysfs_warn_dup+0x74/0xa4
LR [c000000000188798] .sysfs_warn_dup+0x70/0xa4
Call Trace:
[c0000001fe0472c0] [c000000000188798] .sysfs_warn_dup+0x70/0xa4 (unreliable)
[c0000001fe047350] [c000000000188d34] .sysfs_do_create_link_sd.clone.2+0x168/0x174
[c0000001fe047400] [c0000000004b3cf8] .iommu_group_add_device+0x78/0x244
[c0000001fe0474b0] [c0000000004b6964] .fsl_pamu_add_device+0x88/0x1a8
[c0000001fe047570] [c0000000004b3960] .iommu_bus_notifier+0xdc/0x15c
[c0000001fe047600] [c000000000059848] .notifier_call_chain+0x8c/0xe8
[c0000001fe0476a0] [c000000000059d04] .__blocking_notifier_call_chain+0x58/0x84
[c0000001fe047750] [c00000000036619c] .device_add+0x464/0x5c8
[c0000001fe047820] [c000000000300ebc] .pci_device_add+0x14c/0x17c
[c0000001fe0478c0] [c000000000300fbc] .pci_scan_single_device+0xd0/0xf4
[c0000001fe047970] [c00000000030104c] .pci_scan_slot+0x6c/0x18c
[c0000001fe047a10] [c00000000030226c] .pci_scan_child_bus+0x40/0x114
[c0000001fe047ac0] [c000000000021974] .pcibios_scan_phb+0x240/0x2c8
[c0000001fe047b70] [c00000000085a970] .pcibios_init+0x64/0xc8
[c0000001fe047c00] [c000000000001884] .do_one_initcall+0xbc/0x224
[c0000001fe047d00] [c000000000852d50] .kernel_init_freeable+0x14c/0x21c
[c0000001fe047db0] [c000000000002078] .kernel_init+0x1c/0xfa4
[c0000001fe047e30] [c000000000000884] .ret_from_kernel_thread+0x58/0xd4
Instruction dump:
7c7f1b79 4182001c 7fe4fb78 7f83e378 38a01000 4bffc905 60000000 7c641b78
e87e8008 7fa5eb78 48482ff5 60000000 <0fe00000> 7fe3fb78 4bf7bd39 60000000
Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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11 years ago |
| .. |
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Kconfig
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Merge branches 'x86/vt-d', 'x86/amd', 'arm/omap', 'ppc/pamu', 'arm/smmu', 'arm/exynos' and 'core' into next
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11 years ago |
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Makefile
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Merge branches 'x86/vt-d', 'x86/amd', 'arm/omap', 'ppc/pamu', 'arm/smmu', 'arm/exynos' and 'core' into next
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11 years ago |
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amd_iommu.c
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iommu/amd: Fix cleanup_domain for mass device removal
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11 years ago |
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amd_iommu_init.c
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iommu/amd: Add sysfs support
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11 years ago |
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amd_iommu_proto.h
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…
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amd_iommu_types.h
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Merge branches 'x86/vt-d', 'x86/amd', 'arm/omap', 'ppc/pamu', 'arm/smmu', 'arm/exynos' and 'core' into next
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11 years ago |
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amd_iommu_v2.c
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iommu/amd: Fix 2 typos in comments
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11 years ago |
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arm-smmu.c
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iommu/arm-smmu: fix corner cases in address size calculations
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11 years ago |
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dmar.c
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iommu/vt-d: Check return value of acpi_bus_get_device()
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11 years ago |
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exynos-iommu.c
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iommu: Constify struct iommu_ops
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11 years ago |
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fsl_pamu.c
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Merge branches 'x86/vt-d', 'x86/amd', 'arm/omap', 'ppc/pamu', 'arm/smmu', 'arm/exynos' and 'core' into next
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11 years ago |
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fsl_pamu.h
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…
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fsl_pamu_domain.c
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iommu/fsl: Fix warning resulting from adding PCI device twice
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11 years ago |
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fsl_pamu_domain.h
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…
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intel-iommu.c
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iommu/vt-d: Defer domain removal if device is assigned to a driver
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11 years ago |
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intel_irq_remapping.c
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iommu/vt-d: Fix race setting IRQ CPU affinity while freeing IRQ
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11 years ago |
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iommu-sysfs.c
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iommu: Fix compile error in iommu-sysfs.c
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11 years ago |
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iommu-traces.c
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…
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iommu.c
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iommu/core: Make iommu_group_get_for_dev() more robust
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11 years ago |
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iova.c
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iommu/vt-d: Update IOMMU state when memory hotplug happens
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11 years ago |
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ipmmu-vmsa.c
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iommu: Constify struct iommu_ops
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11 years ago |
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irq_remapping.c
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x86: irq_remapping: Use irq_alloc/free_hwirq()
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11 years ago |
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irq_remapping.h
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…
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msm_iommu.c
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iommu: Constify struct iommu_ops
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11 years ago |
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msm_iommu.h
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…
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msm_iommu_dev.c
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iommu/msm: Use devm_ioremap_resource to simplify code
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11 years ago |
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msm_iommu_hw-8xxx.h
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…
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of_iommu.c
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…
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omap-iommu-debug.c
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iommu/omap: Remove virtual memory manager
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11 years ago |
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omap-iommu.c
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Merge branches 'x86/vt-d', 'x86/amd', 'arm/omap', 'ppc/pamu', 'arm/smmu', 'arm/exynos' and 'core' into next
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11 years ago |
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omap-iommu.h
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iommu/omap: Remove virtual memory manager
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11 years ago |
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omap-iommu2.c
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iommu/omap: Enable bus-error back on supported iommus
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11 years ago |
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omap-iopgtable.h
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iommu/omap: Move to_iommu definition from omap-iopgtable.h
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11 years ago |
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shmobile-iommu.c
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iommu: Constify struct iommu_ops
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11 years ago |
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shmobile-ipmmu.c
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iommu/shmobile: Use devm_ioremap_resource()
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11 years ago |
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shmobile-ipmmu.h
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iommu/shmobile: Turn the flush_lock mutex into a spinlock
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11 years ago |
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tegra-gart.c
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iommu: Constify struct iommu_ops
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11 years ago |
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tegra-smmu.c
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ARM: SoC cleanups for 3.17
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11 years ago |
