PCI/MSI: Rename "struct msi_chip" to "struct msi_controller"

"msi_chip" isn't very descriptive, so rename it to "msi_controller".  That
tells a little more about what it does and is already used in device tree
bindings.

No functional change.

[bhelgaas: changelog, change *only* the struct name so it's reviewable]
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

14 files changed, 40 insertions, 38 deletions

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 3e238cd049e6..4e202375e027 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -129,7 +129,7 @@ static void armada_370_xp_free_msi(int hwirq)
         mutex_unlock(&msi_used_lock);
 }
 
-static int armada_370_xp_setup_msi_irq(struct msi_chip *chip,
+static int armada_370_xp_setup_msi_irq(struct msi_controller *chip,
                                        struct pci_dev *pdev,
                                        struct msi_desc *desc)
 {
@@ -160,7 +160,7 @@ static int armada_370_xp_setup_msi_irq(struct msi_chip *chip,
         return 0;
 }
 
-static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip,
+static void armada_370_xp_teardown_msi_irq(struct msi_controller *chip,
                                            unsigned int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
@@ -195,7 +195,7 @@ static const struct irq_domain_ops armada_370_xp_msi_irq_ops = {
 static int armada_370_xp_msi_init(struct device_node *node,
                                   phys_addr_t main_int_phys_base)
 {
-        struct msi_chip *msi_chip;
+        struct msi_controller *msi_chip;
         u32 reg;
         int ret;
 
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
index 8882b467be95..88471d3d98cd 100644
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -236,7 +236,7 @@ EXPORT_SYMBOL_GPL(of_pci_get_host_bridge_resources);
 static LIST_HEAD(of_pci_msi_chip_list);
 static DEFINE_MUTEX(of_pci_msi_chip_mutex);
 
-int of_pci_msi_chip_add(struct msi_chip *chip)
+int of_pci_msi_chip_add(struct msi_controller *chip)
 {
         if (!of_property_read_bool(chip->of_node, "msi-controller"))
                 return -EINVAL;
@@ -249,7 +249,7 @@ int of_pci_msi_chip_add(struct msi_chip *chip)
 }
 EXPORT_SYMBOL_GPL(of_pci_msi_chip_add);
 
-void of_pci_msi_chip_remove(struct msi_chip *chip)
+void of_pci_msi_chip_remove(struct msi_controller *chip)
 {
         mutex_lock(&of_pci_msi_chip_mutex);
         list_del(&chip->list);
@@ -257,9 +257,9 @@ void of_pci_msi_chip_remove(struct msi_chip *chip)
 }
 EXPORT_SYMBOL_GPL(of_pci_msi_chip_remove);
 
-struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node)
+struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node)
 {
-        struct msi_chip *c;
+        struct msi_controller *c;
 
         mutex_lock(&of_pci_msi_chip_mutex);
         list_for_each_entry(c, &of_pci_msi_chip_list, list) {
diff --git a/drivers/pci/host/pci-keystone-dw.c b/drivers/pci/host/pci-keystone-dw.c
index 34086ce88e8e..ac3d08c42770 100644
--- a/drivers/pci/host/pci-keystone-dw.c
+++ b/drivers/pci/host/pci-keystone-dw.c
@@ -205,7 +205,7 @@ const struct irq_domain_ops ks_dw_pcie_msi_domain_ops = {
         .map = ks_dw_pcie_msi_map,
 };
 
-int ks_dw_pcie_msi_host_init(struct pcie_port *pp, struct msi_chip *chip)
+int ks_dw_pcie_msi_host_init(struct pcie_port *pp, struct msi_controller *chip)
 {
         struct keystone_pcie *ks_pcie = to_keystone_pcie(pp);
         int i;
diff --git a/drivers/pci/host/pci-keystone.h b/drivers/pci/host/pci-keystone.h
index 1fc1fceede9e..478d932b602d 100644
--- a/drivers/pci/host/pci-keystone.h
+++ b/drivers/pci/host/pci-keystone.h
@@ -55,4 +55,4 @@ void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
 void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
 void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
 int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
-                struct msi_chip *chip);
+                struct msi_controller *chip);
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index b1315e197ffb..cf907fec0652 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -99,7 +99,7 @@ struct mvebu_pcie_port;
 struct mvebu_pcie {
         struct platform_device *pdev;
         struct mvebu_pcie_port *ports;
-        struct msi_chip *msi;
+        struct msi_controller *msi;
         struct resource io;
         char io_name[30];
         struct resource realio;
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 3d43874319be..5529de7328ba 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -238,7 +238,7 @@
         )
 
 struct tegra_msi {
-        struct msi_chip chip;
+        struct msi_controller chip;
         DECLARE_BITMAP(used, INT_PCI_MSI_NR);
         struct irq_domain *domain;
         unsigned long pages;
@@ -259,7 +259,7 @@ struct tegra_pcie_soc_data {
         bool has_gen2;
 };
 
-static inline struct tegra_msi *to_tegra_msi(struct msi_chip *chip)
+static inline struct tegra_msi *to_tegra_msi(struct msi_controller *chip)
 {
         return container_of(chip, struct tegra_msi, chip);
 }
@@ -1283,8 +1283,8 @@ static irqreturn_t tegra_pcie_msi_irq(int irq, void *data)
         return processed > 0 ? IRQ_HANDLED : IRQ_NONE;
 }
 
-static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
-                               struct msi_desc *desc)
+static int tegra_msi_setup_irq(struct msi_controller *chip,
+                               struct pci_dev *pdev, struct msi_desc *desc)
 {
         struct tegra_msi *msi = to_tegra_msi(chip);
         struct msi_msg msg;
@@ -1313,7 +1313,8 @@ static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
         return 0;
 }
 
-static void tegra_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+static void tegra_msi_teardown_irq(struct msi_controller *chip,
+                                   unsigned int irq)
 {
         struct tegra_msi *msi = to_tegra_msi(chip);
         struct irq_data *d = irq_get_irq_data(irq);
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index dfed00aa3ac0..f4decad80ee4 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -276,7 +276,7 @@ no_valid_irq:
         return -ENOSPC;
 }
 
-static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
+static int dw_msi_setup_irq(struct msi_controller *chip, struct pci_dev *pdev,
                         struct msi_desc *desc)
 {
         int irq, pos;
@@ -303,7 +303,7 @@ static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
         return 0;
 }
 
-static void dw_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+static void dw_msi_teardown_irq(struct msi_controller *chip, unsigned int irq)
 {
         struct irq_data *data = irq_get_irq_data(irq);
         struct msi_desc *msi = irq_data_get_msi(data);
@@ -312,7 +312,7 @@ static void dw_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
         clear_irq_range(pp, irq, 1, data->hwirq);
 }
 
-static struct msi_chip dw_pcie_msi_chip = {
+static struct msi_controller dw_pcie_msi_chip = {
         .setup_irq = dw_msi_setup_irq,
         .teardown_irq = dw_msi_teardown_irq,
 };
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index c6256751daff..d0bbd276840d 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -73,7 +73,7 @@ struct pcie_host_ops {
         u32 (*get_msi_addr)(struct pcie_port *pp);
         u32 (*get_msi_data)(struct pcie_port *pp, int pos);
         void (*scan_bus)(struct pcie_port *pp);
-        int (*msi_host_init)(struct pcie_port *pp, struct msi_chip *chip);
+        int (*msi_host_init)(struct pcie_port *pp, struct msi_controller *chip);
 };
 
 int dw_pcie_cfg_read(void __iomem *addr, int where, int size, u32 *val);
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 61158e03ab5f..b986c51d4df3 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -111,14 +111,14 @@
 struct rcar_msi {
         DECLARE_BITMAP(used, INT_PCI_MSI_NR);
         struct irq_domain *domain;
-        struct msi_chip chip;
+        struct msi_controller chip;
         unsigned long pages;
         struct mutex lock;
         int irq1;
         int irq2;
 };
 
-static inline struct rcar_msi *to_rcar_msi(struct msi_chip *chip)
+static inline struct rcar_msi *to_rcar_msi(struct msi_controller *chip)
 {
         return container_of(chip, struct rcar_msi, chip);
 }
@@ -622,7 +622,7 @@ static irqreturn_t rcar_pcie_msi_irq(int irq, void *data)
         return IRQ_HANDLED;
 }
 
-static int rcar_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
+static int rcar_msi_setup_irq(struct msi_controller *chip, struct pci_dev *pdev,
                               struct msi_desc *desc)
 {
         struct rcar_msi *msi = to_rcar_msi(chip);
@@ -652,7 +652,7 @@ static int rcar_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
         return 0;
 }
 
-static void rcar_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+static void rcar_msi_teardown_irq(struct msi_controller *chip, unsigned int irq)
 {
         struct rcar_msi *msi = to_rcar_msi(chip);
         struct irq_data *d = irq_get_irq_data(irq);
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index ccc496b33a97..f41bc601b7b0 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -335,7 +335,8 @@ static int xilinx_pcie_assign_msi(struct xilinx_pcie_port *port)
  * @chip: MSI Chip descriptor
  * @irq: MSI IRQ to destroy
  */
-static void xilinx_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+static void xilinx_msi_teardown_irq(struct msi_controller *chip,
+                                    unsigned int irq)
 {
         xilinx_pcie_destroy_msi(irq);
 }
@@ -348,7 +349,7 @@ static void xilinx_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
  *
  * Return: '0' on success and error value on failure
  */
-static int xilinx_pcie_msi_setup_irq(struct msi_chip *chip,
+static int xilinx_pcie_msi_setup_irq(struct msi_controller *chip,
                                      struct pci_dev *pdev,
                                      struct msi_desc *desc)
 {
@@ -380,7 +381,7 @@ static int xilinx_pcie_msi_setup_irq(struct msi_chip *chip,
 }
 
 /* MSI Chip Descriptor */
-static struct msi_chip xilinx_pcie_msi_chip = {
+static struct msi_controller xilinx_pcie_msi_chip = {
         .setup_irq = xilinx_pcie_msi_setup_irq,
         .teardown_irq = xilinx_msi_teardown_irq,
 };
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d9a92cf6a6d6..0260f3933211 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -32,7 +32,7 @@ int pci_msi_ignore_mask;
 
 int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 {
-        struct msi_chip *chip = dev->bus->msi;
+        struct msi_controller *chip = dev->bus->msi;
         int err;
 
         if (!chip || !chip->setup_irq)
@@ -49,7 +49,7 @@ int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 
 void __weak arch_teardown_msi_irq(unsigned int irq)
 {
-        struct msi_chip *chip = irq_get_chip_data(irq);
+        struct msi_controller *chip = irq_get_chip_data(irq);
 
         if (!chip || !chip->teardown_irq)
                 return;
diff --git a/include/linux/msi.h b/include/linux/msi.h
index efad12742e45..6704991b0174 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -65,15 +65,15 @@ void arch_restore_msi_irqs(struct pci_dev *dev);
 void default_teardown_msi_irqs(struct pci_dev *dev);
 void default_restore_msi_irqs(struct pci_dev *dev);
 
-struct msi_chip {
+struct msi_controller {
         struct module *owner;
         struct device *dev;
         struct device_node *of_node;
         struct list_head list;
 
-        int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev,
+        int (*setup_irq)(struct msi_controller *chip, struct pci_dev *dev,
                          struct msi_desc *desc);
-        void (*teardown_irq)(struct msi_chip *chip, unsigned int irq);
+        void (*teardown_irq)(struct msi_controller *chip, unsigned int irq);
 };
 
 #endif /* LINUX_MSI_H */
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 1fd207e7a847..ce0e5abeb454 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -59,13 +59,13 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
 #endif
 
 #if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
-int of_pci_msi_chip_add(struct msi_chip *chip);
-void of_pci_msi_chip_remove(struct msi_chip *chip);
-struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node);
+int of_pci_msi_chip_add(struct msi_controller *chip);
+void of_pci_msi_chip_remove(struct msi_controller *chip);
+struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
 #else
-static inline int of_pci_msi_chip_add(struct msi_chip *chip) { return -EINVAL; }
-static inline void of_pci_msi_chip_remove(struct msi_chip *chip) { }
-static inline struct msi_chip *
+static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
+static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
+static inline struct msi_controller *
 of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
 #endif
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5be8db45e368..90a5fdec6b9f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -449,7 +449,7 @@ struct pci_bus {
         struct resource busn_res;       /* bus numbers routed to this bus */
 
         struct pci_ops  *ops;           /* configuration access functions */
-        struct msi_chip *msi;           /* MSI controller */
+        struct msi_controller *msi;     /* MSI controller */
         void            *sysdata;       /* hook for sys-specific extension */
         struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */