PCI: aardvark: Cleanup
Bjorn Helgaas
maintainerv2 cover PCI: aardvark: Cleanup
Add local "dev" pointers to reduce repetition of things like "&pdev->dev" and remove unused drvdata.
Changes from v1:
I dropped the following because they added a lot of churn for questionable benefit:
PCI: aardvark: Name private struct pointer "advk" consistently
PCI: aardvark: Reorder accessor functions
PCI: aardvark: Swap order of advk_write() reg/val arguments
---
Bjorn Helgaas (2):
PCI: aardvark: Add local struct device pointers
PCI: aardvark: Remove unused platform data
drivers/pci/host/pci-aardvark.c | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-)
Bjorn Helgaas
maintainerPATCH v2 1/2 PCI: aardvark: Add local struct device pointers
Use a local "struct device *dev" for brevity and consistency with other drivers. No functional change intended.
--- drivers/pci/host/pci-aardvark.c | 38 ++++++++++++++++++++------------------ 1 file changed, 20 insertions(+), 18 deletions(-)
drivers/pci/host/pci-aardvark.c +20 -18
@@ -230,20 +230,20 @@ static int advk_pcie_link_up(struct advk_pcie *pcie)static int advk_pcie_wait_for_link (struct advk_pcie *pcie) { +struct device *dev = &pcie->pdev->dev;int retries;/* check if the link is up or not */ for (retries =0 ; retries <LINK_WAIT_MAX_RETRIES ; retries++) {if (advk_pcie_link_up (pcie)) { -dev_info (&pcie->pdev->dev,"link up\n" ); +dev_info (dev,"link up\n" );return 0 ; }usleep_range (LINK_WAIT_USLEEP_MIN ,LINK_WAIT_USLEEP_MAX ); } -dev_err (&pcie->pdev->dev,"link never came up\n" ); - +dev_err (dev,"link never came up\n" );return -ETIMEDOUT ; }
@@ -376,6 +376,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)static void advk_pcie_check_pio_status (struct advk_pcie *pcie) { +struct device *dev = &pcie->pdev->dev;u32 reg;unsigned int status;char *strcomp_status, *str_posted;
@@ -407,12 +408,13 @@ static void advk_pcie_check_pio_status(struct advk_pcie *pcie)else str_posted ="Posted" ; -dev_err (&pcie->pdev->dev,"%s PIO Response Status: %s, %#x @ %#x\n" , +dev_err (dev,"%s PIO Response Status: %s, %#x @ %#x\n" , str_posted, strcomp_status, reg,advk_readl (pcie,PIO_ADDR_LS )); }static int advk_pcie_wait_pio (struct advk_pcie *pcie) { +struct device *dev = &pcie->pdev->dev;unsigned long timeout; timeout = jiffies +msecs_to_jiffies (PIO_TIMEOUT_MS );
@@ -426,7 +428,7 @@ static int advk_pcie_wait_pio(struct advk_pcie *pcie)return 0 ; } -dev_err (&pcie->pdev->dev,"config read/write timed out\n" ); +dev_err (dev,"config read/write timed out\n" );return -ETIMEDOUT ; }
@@ -560,10 +562,11 @@ static int advk_pcie_alloc_msi(struct advk_pcie *pcie)static void advk_pcie_free_msi (struct advk_pcie *pcie,int hwirq) { +struct device *dev = &pcie->pdev->dev; +mutex_lock (&pcie->msi_used_lock);if (!test_bit (hwirq, pcie->msi_irq_in_use)) -dev_err (&pcie->pdev->dev,"trying to free unused MSI#%d\n" , - hwirq); +dev_err (dev,"trying to free unused MSI#%d\n" , hwirq);else clear_bit (hwirq, pcie->msi_irq_in_use);mutex_unlock (&pcie->msi_used_lock);
@@ -910,6 +913,7 @@ out_release_res:static int advk_pcie_probe (struct platform_device *pdev) { +struct device *dev = &pdev->dev;struct advk_pcie *pcie;struct resource *res;struct pci_bus *bus, *child;
@@ -917,8 +921,7 @@ static int advk_pcie_probe(struct platform_device *pdev)struct device_node *msi_node;int ret, irq; - pcie =devm_kzalloc (&pdev->dev,sizeof (struct advk_pcie ), -GFP_KERNEL ); + pcie =devm_kzalloc (dev,sizeof (struct advk_pcie ),GFP_KERNEL );if (!pcie)return -ENOMEM ;
@@ -926,22 +929,22 @@ static int advk_pcie_probe(struct platform_device *pdev)platform_set_drvdata (pdev, pcie); res =platform_get_resource (pdev,IORESOURCE_MEM ,0 ); - pcie->base =devm_ioremap_resource (&pdev->dev, res); + pcie->base =devm_ioremap_resource (dev, res);if (IS_ERR (pcie->base))return PTR_ERR (pcie->base); irq =platform_get_irq (pdev,0 ); - ret =devm_request_irq (&pdev->dev, irq, advk_pcie_irq_handler, + ret =devm_request_irq (dev, irq, advk_pcie_irq_handler,IRQF_SHARED |IRQF_NO_THREAD ,"advk-pcie" , pcie);if (ret) { -dev_err (&pdev->dev,"Failed to register interrupt\n" ); +dev_err (dev,"Failed to register interrupt\n" );return ret; } ret =advk_pcie_parse_request_of_pci_ranges (pcie);if (ret) { -dev_err (&pdev->dev,"Failed to parse resources\n" ); +dev_err (dev,"Failed to parse resources\n" );return ret; }
@@ -949,24 +952,24 @@ static int advk_pcie_probe(struct platform_device *pdev) ret =advk_pcie_init_irq_domain (pcie);if (ret) { -dev_err (&pdev->dev,"Failed to initialize irq\n" ); +dev_err (dev,"Failed to initialize irq\n" );return ret; } ret =advk_pcie_init_msi_irq_domain (pcie);if (ret) { -dev_err (&pdev->dev,"Failed to initialize irq\n" ); +dev_err (dev,"Failed to initialize irq\n" );advk_pcie_remove_irq_domain (pcie);return ret; } - msi_node =of_parse_phandle (pdev->dev.of_node,"msi-parent" ,0 ); + msi_node =of_parse_phandle (dev->of_node,"msi-parent" ,0 );if (msi_node) msi =of_pci_find_msi_chip_by_node (msi_node);else msi =NULL ; - bus =pci_scan_root_bus_msi (&pdev->dev,0 , &advk_pcie_ops, + bus =pci_scan_root_bus_msi (dev,0 , &advk_pcie_ops, pcie, &pcie->resources, &pcie->msi);if (!bus) {advk_pcie_remove_msi_irq_domain (pcie);
@@ -980,7 +983,6 @@ static int advk_pcie_probe(struct platform_device *pdev)pcie_bus_configure_settings (child);pci_bus_add_devices (bus); -return 0 ; }
Bjorn Helgaas
maintainerPATCH v2 2/2 PCI: aardvark: Remove unused platform data
In reply to Bjorn HelgaasThe aardvark driver never uses the platform drvdata pointer, so don't bother setting it. No functional change intended.
--- drivers/pci/host/pci-aardvark.c | 1 - 1 file changed, 1 deletion(-)
drivers/pci/host/pci-aardvark.c +0 -1
@@ -926,7 +926,6 @@ static int advk_pcie_probe(struct platform_device *pdev)return -ENOMEM ; pcie->pdev = pdev; -platform_set_drvdata (pdev, pcie); res =platform_get_resource (pdev,IORESOURCE_MEM ,0 ); pcie->base =devm_ioremap_resource (dev, res);
Bjorn Helgaas
Appliedv2 cover PCI: aardvark: Cleanup
In reply to Bjorn HelgaasQuoted 10 lines · Bjorn Helgaas
Add local "dev" pointers to reduce repetition of things like "
&pdev->dev" and remove unused drvdata.Changes from v1:
I dropped the following because they added a lot of churn for questionable benefit:
PCI: aardvark: Name private struct pointer "advk" consistently
PCI: aardvark: Reorder accessor functions
PCI: aardvark: Swap order ofadvk_write()reg/val arguments
Quoted 5 lines
---
Bjorn Helgaas (2):
PCI: aardvark: Add local struct device pointers
PCI: aardvark: Remove unused platform data
I applied these to pci/host-aardvark for v4.9. I hope to ask Linus to pull them tomorrow, so if you see any issues, let me know soon.