genirq/irqdomain: Rename early argument of irq_domain_activate_irq()

The 'early' argument of irq_domain_activate_irq() is actually used to
denote reservation mode. To avoid confusion, rename it before abuse
happens.

No functional change.

Fixes: 72491643469a ("genirq/irqdomain: Update irq_domain_ops.activate() signature")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Alexandru Chirvasitu <achirvasub@gmail.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Mikael Pettersson <mikpelinux@gmail.com>
Cc: Josh Poulson <jopoulso@microsoft.com>
Cc: Mihai Costache <v-micos@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-pci@vger.kernel.org
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Simon Xiao <sixiao@microsoft.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Jork Loeser <Jork.Loeser@microsoft.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: devel@linuxdriverproject.org
Cc: KY Srinivasan <kys@microsoft.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Sakari Ailus <sakari.ailus@intel.com>,
Cc: linux-media@vger.kernel.org

13 files changed, 29 insertions, 28 deletions

diff --git a/arch/x86/include/asm/irqdomain.h b/arch/x86/include/asm/irqdomain.h
index 139feef467f7..c066ffae222b 100644
--- a/arch/x86/include/asm/irqdomain.h
+++ b/arch/x86/include/asm/irqdomain.h
@@ -44,7 +44,7 @@ extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
                               unsigned int nr_irqs);
 extern int mp_irqdomain_activate(struct irq_domain *domain,
-                                 struct irq_data *irq_data, bool early);
+                                 struct irq_data *irq_data, bool reserve);
 extern void mp_irqdomain_deactivate(struct irq_domain *domain,
                                     struct irq_data *irq_data);
 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h
index 84b9ec0c1bc0..22647a642e98 100644
--- a/arch/x86/include/asm/trace/irq_vectors.h
+++ b/arch/x86/include/asm/trace/irq_vectors.h
@@ -283,34 +283,34 @@ TRACE_EVENT(vector_alloc_managed,
 DECLARE_EVENT_CLASS(vector_activate,
 
         TP_PROTO(unsigned int irq, bool is_managed, bool can_reserve,
-                 bool early),
+                 bool reserve),
 
-        TP_ARGS(irq, is_managed, can_reserve, early),
+        TP_ARGS(irq, is_managed, can_reserve, reserve),
 
         TP_STRUCT__entry(
                 __field(        unsigned int,   irq             )
                 __field(        bool,           is_managed      )
                 __field(        bool,           can_reserve     )
-                __field(        bool,           early           )
+                __field(        bool,           reserve         )
         ),
 
         TP_fast_assign(
                 __entry->irq            = irq;
                 __entry->is_managed     = is_managed;
                 __entry->can_reserve    = can_reserve;
-                __entry->early          = early;
+                __entry->reserve        = reserve;
         ),
 
-        TP_printk("irq=%u is_managed=%d can_reserve=%d early=%d",
+        TP_printk("irq=%u is_managed=%d can_reserve=%d reserve=%d",
                   __entry->irq, __entry->is_managed, __entry->can_reserve,
-                  __entry->early)
+                  __entry->reserve)
 );
 
 #define DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(name)                          \
 DEFINE_EVENT_FN(vector_activate, name,                                  \
         TP_PROTO(unsigned int irq, bool is_managed,                     \
-                 bool can_reserve, bool early),                         \
-        TP_ARGS(irq, is_managed, can_reserve, early), NULL, NULL);      \
+                 bool can_reserve, bool reserve),                       \
+        TP_ARGS(irq, is_managed, can_reserve, reserve), NULL, NULL);    \
 
 DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_activate);
 DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_deactivate);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 201579dc5242..8a7963421460 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2988,7 +2988,7 @@ void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
 }
 
 int mp_irqdomain_activate(struct irq_domain *domain,
-                          struct irq_data *irq_data, bool early)
+                          struct irq_data *irq_data, bool reserve)
 {
         unsigned long flags;
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 1e969dba0476..52c85c8147e9 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -399,21 +399,21 @@ static int activate_managed(struct irq_data *irqd)
 }
 
 static int x86_vector_activate(struct irq_domain *dom, struct irq_data *irqd,
-                               bool early)
+                               bool reserve)
 {
         struct apic_chip_data *apicd = apic_chip_data(irqd);
         unsigned long flags;
         int ret = 0;
 
         trace_vector_activate(irqd->irq, apicd->is_managed,
-                              apicd->can_reserve, early);
+                              apicd->can_reserve, reserve);
 
         /* Nothing to do for fixed assigned vectors */
         if (!apicd->can_reserve && !apicd->is_managed)
                 return 0;
 
         raw_spin_lock_irqsave(&vector_lock, flags);
-        if (early || irqd_is_managed_and_shutdown(irqd))
+        if (reserve || irqd_is_managed_and_shutdown(irqd))
                 vector_assign_managed_shutdown(irqd);
         else if (apicd->is_managed)
                 ret = activate_managed(irqd);
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index 5f6fd860820a..e4cb9f4cde8a 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -128,7 +128,7 @@ static void uv_domain_free(struct irq_domain *domain, unsigned int virq,
  * on the specified blade to allow the sending of MSIs to the specified CPU.
  */
 static int uv_domain_activate(struct irq_domain *domain,
-                              struct irq_data *irq_data, bool early)
+                              struct irq_data *irq_data, bool reserve)
 {
         uv_program_mmr(irqd_cfg(irq_data), irq_data->chip_data);
         return 0;
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index 2313af82fad3..acd59113e08b 100644
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -139,7 +139,7 @@ static int xgene_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
 
 static int xgene_gpio_sb_domain_activate(struct irq_domain *d,
                                          struct irq_data *irq_data,
-                                         bool early)
+                                         bool reserve)
 {
         struct xgene_gpio_sb *priv = d->host_data;
         u32 gpio = HWIRQ_TO_GPIO(priv, irq_data->hwirq);
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 7d5eb004091d..97baf88d9505 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -4184,7 +4184,7 @@ static void amd_ir_update_irte(struct irq_data *irqd, struct amd_iommu *iommu,
                                struct irq_cfg *cfg);
 
 static int irq_remapping_activate(struct irq_domain *domain,
-                                  struct irq_data *irq_data, bool early)
+                                  struct irq_data *irq_data, bool reserve)
 {
         struct amd_ir_data *data = irq_data->chip_data;
         struct irq_2_irte *irte_info = &data->irq_2_irte;
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 76a193c7fcfc..66f69af2c219 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -1397,7 +1397,7 @@ static void intel_irq_remapping_free(struct irq_domain *domain,
 }
 
 static int intel_irq_remapping_activate(struct irq_domain *domain,
-                                        struct irq_data *irq_data, bool early)
+                                        struct irq_data *irq_data, bool reserve)
 {
         intel_ir_reconfigure_irte(irq_data, true);
         return 0;
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 4039e64cd342..06f025fd5726 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -2303,7 +2303,7 @@ static int its_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 }
 
 static int its_irq_domain_activate(struct irq_domain *domain,
-                                   struct irq_data *d, bool early)
+                                   struct irq_data *d, bool reserve)
 {
         struct its_device *its_dev = irq_data_get_irq_chip_data(d);
         u32 event = its_get_event_id(d);
@@ -2818,7 +2818,7 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
 }
 
 static int its_vpe_irq_domain_activate(struct irq_domain *domain,
-                                       struct irq_data *d, bool early)
+                                       struct irq_data *d, bool reserve)
 {
         struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
         struct its_node *its;
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index a276c61be217..e62ab087bfd8 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -290,7 +290,7 @@ static int stm32_gpio_domain_translate(struct irq_domain *d,
 }
 
 static int stm32_gpio_domain_activate(struct irq_domain *d,
-                                      struct irq_data *irq_data, bool early)
+                                      struct irq_data *irq_data, bool reserve)
 {
         struct stm32_gpio_bank *bank = d->host_data;
         struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent);
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index a34355d19546..48c7e86bb556 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -113,7 +113,7 @@ struct irq_domain_ops {
                      unsigned int nr_irqs, void *arg);
         void (*free)(struct irq_domain *d, unsigned int virq,
                      unsigned int nr_irqs);
-        int (*activate)(struct irq_domain *d, struct irq_data *irqd, bool early);
+        int (*activate)(struct irq_domain *d, struct irq_data *irqd, bool reserve);
         void (*deactivate)(struct irq_domain *d, struct irq_data *irq_data);
         int (*translate)(struct irq_domain *d, struct irq_fwspec *fwspec,
                          unsigned long *out_hwirq, unsigned int *out_type);
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 07d08ca701ec..ab19371eab9b 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -440,7 +440,7 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear)
 #endif /* !CONFIG_GENERIC_PENDING_IRQ */
 
 #if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY)
-static inline int irq_domain_activate_irq(struct irq_data *data, bool early)
+static inline int irq_domain_activate_irq(struct irq_data *data, bool reserve)
 {
         irqd_set_activated(data);
         return 0;
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 4f4f60015e8a..62068ad46930 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1693,7 +1693,7 @@ static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
         }
 }
 
-static int __irq_domain_activate_irq(struct irq_data *irqd, bool early)
+static int __irq_domain_activate_irq(struct irq_data *irqd, bool reserve)
 {
         int ret = 0;
 
@@ -1702,9 +1702,9 @@ static int __irq_domain_activate_irq(struct irq_data *irqd, bool early)
 
                 if (irqd->parent_data)
                         ret = __irq_domain_activate_irq(irqd->parent_data,
-                                                        early);
+                                                        reserve);
                 if (!ret && domain->ops->activate) {
-                        ret = domain->ops->activate(domain, irqd, early);
+                        ret = domain->ops->activate(domain, irqd, reserve);
                         /* Rollback in case of error */
                         if (ret && irqd->parent_data)
                                 __irq_domain_deactivate_irq(irqd->parent_data);
@@ -1716,17 +1716,18 @@ static int __irq_domain_activate_irq(struct irq_data *irqd, bool early)
 /**
  * irq_domain_activate_irq - Call domain_ops->activate recursively to activate
  *                           interrupt
- * @irq_data:   outermost irq_data associated with interrupt
+ * @irq_data:   Outermost irq_data associated with interrupt
+ * @reserve:    If set only reserve an interrupt vector instead of assigning one
  *
  * This is the second step to call domain_ops->activate to program interrupt
  * controllers, so the interrupt could actually get delivered.
  */
-int irq_domain_activate_irq(struct irq_data *irq_data, bool early)
+int irq_domain_activate_irq(struct irq_data *irq_data, bool reserve)
 {
         int ret = 0;
 
         if (!irqd_is_activated(irq_data))
-                ret = __irq_domain_activate_irq(irq_data, early);
+                ret = __irq_domain_activate_irq(irq_data, reserve);
         if (!ret)
                 irqd_set_activated(irq_data);
         return ret;