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| author | Maya Nakamura <m.maya.nakamura@gmail.com> | 2019-03-01 06:59:02 +0000 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2019-03-01 11:45:10 +0000 |
| commit | 9bc1174280ddf7693e8c29a8f1743809e987ac37 (patch) | |
| tree | 1d4238e1f2a422a8f7fe9683617f106b61db5311 | |
| parent | 6ae91579061c25f70e4301619ffd16e1b6b5defb (diff) | |
| download | linux-9bc1174280ddf7693e8c29a8f1743809e987ac37.tar.gz | |
PCI: hv: Replace hv_vp_set with hv_vpset
Remove a duplicate definition of VP set (hv_vp_set) and use the common definition (hv_vpset) that is used in other places. Change the order of the members in struct hv_pcibus_device so that the declaration of retarget_msi_interrupt_params is the last member. Struct hv_vpset, which contains a flexible array, is nested two levels deep in struct hv_pcibus_device via retarget_msi_interrupt_params. Add a comment that retarget_msi_interrupt_params should be the last member of struct hv_pcibus_device. Signed-off-by: Maya Nakamura <m.maya.nakamura@gmail.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 73862eef09ec..d71695db1ba0 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -393,12 +393,6 @@ struct hv_interrupt_entry { #define HV_VP_SET_BANK_COUNT_MAX 5 /* current implementation limit */ -struct hv_vp_set { - u64 format; /* 0 (HvGenericSetSparse4k) */ - u64 valid_banks; - u64 masks[HV_VP_SET_BANK_COUNT_MAX]; -}; - /* * flags for hv_device_interrupt_target.flags */ @@ -410,7 +404,7 @@ struct hv_device_interrupt_target { u32 flags; union { u64 vp_mask; - struct hv_vp_set vp_set; + struct hv_vpset vp_set; }; }; @@ -460,12 +454,16 @@ struct hv_pcibus_device { struct msi_controller msi_chip; struct irq_domain *irq_domain; - /* hypercall arg, must not cross page boundary */ - struct retarget_msi_interrupt retarget_msi_interrupt_params; - spinlock_t retarget_msi_interrupt_lock; struct workqueue_struct *wq; + + /* hypercall arg, must not cross page boundary */ + struct retarget_msi_interrupt retarget_msi_interrupt_params; + + /* + * Don't put anything here: retarget_msi_interrupt_params must be last + */ }; /* @@ -955,12 +953,13 @@ static void hv_irq_unmask(struct irq_data *data) */ params->int_target.flags |= HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET; - params->int_target.vp_set.valid_banks = + params->int_target.vp_set.valid_bank_mask = (1ull << HV_VP_SET_BANK_COUNT_MAX) - 1; /* * var-sized hypercall, var-size starts after vp_mask (thus - * vp_set.format does not count, but vp_set.valid_banks does). + * vp_set.format does not count, but vp_set.valid_bank_mask + * does). */ var_size = 1 + HV_VP_SET_BANK_COUNT_MAX; @@ -974,7 +973,7 @@ static void hv_irq_unmask(struct irq_data *data) goto exit_unlock; } - params->int_target.vp_set.masks[cpu_vmbus / 64] |= + params->int_target.vp_set.bank_contents[cpu_vmbus / 64] |= (1ULL << (cpu_vmbus & 63)); } } else { |