From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH 2/2] PCI: Cleanup accessor macros formatting
Date: Mon, 29 Apr 2024 12:47:07 +0300 [thread overview]
Message-ID: <20240429094707.2529-2-ilpo.jarvinen@linux.intel.com> (raw)
In-Reply-To: <20240429094707.2529-1-ilpo.jarvinen@linux.intel.com>
Cleanup formatting of PCI accessor macros:
- Put return statements on own line
- Add a few empty lines for better readability
- Align macro continuation backslashes
- Correct function call argument indentation level
- Reorder variable declarations to reverse xmas tree
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/pci/access.c | 36 +++++++++++++++++++++++++-----------
1 file changed, 25 insertions(+), 11 deletions(-)
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 6449056b57dd..4962a841fa35 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -36,10 +36,13 @@ DEFINE_RAW_SPINLOCK(pci_lock);
int noinline pci_bus_read_config_##size \
(struct pci_bus *bus, unsigned int devfn, int pos, type *value) \
{ \
- int res; \
unsigned long flags; \
u32 data = 0; \
- if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \
+ int res; \
+ \
+ if (PCI_##size##_BAD) \
+ return PCIBIOS_BAD_REGISTER_NUMBER; \
+ \
pci_lock_config(flags); \
res = bus->ops->read(bus, devfn, pos, len, &data); \
if (res) \
@@ -47,6 +50,7 @@ int noinline pci_bus_read_config_##size \
else \
*value = (type)data; \
pci_unlock_config(flags); \
+ \
return res; \
}
@@ -54,12 +58,16 @@ int noinline pci_bus_read_config_##size \
int noinline pci_bus_write_config_##size \
(struct pci_bus *bus, unsigned int devfn, int pos, type value) \
{ \
- int res; \
unsigned long flags; \
- if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER; \
+ int res; \
+ \
+ if (PCI_##size##_BAD) \
+ return PCIBIOS_BAD_REGISTER_NUMBER; \
+ \
pci_lock_config(flags); \
res = bus->ops->write(bus, devfn, pos, len, value); \
pci_unlock_config(flags); \
+ \
return res; \
}
@@ -216,24 +224,27 @@ static noinline void pci_wait_cfg(struct pci_dev *dev)
}
/* Returns 0 on success, negative values indicate error. */
-#define PCI_USER_READ_CONFIG(size, type) \
+#define PCI_USER_READ_CONFIG(size, type) \
int pci_user_read_config_##size \
(struct pci_dev *dev, int pos, type *val) \
{ \
int ret = PCIBIOS_SUCCESSFUL; \
u32 data = -1; \
+ \
if (PCI_##size##_BAD) \
return -EINVAL; \
- raw_spin_lock_irq(&pci_lock); \
+ \
+ raw_spin_lock_irq(&pci_lock); \
if (unlikely(dev->block_cfg_access)) \
pci_wait_cfg(dev); \
ret = dev->bus->ops->read(dev->bus, dev->devfn, \
- pos, sizeof(type), &data); \
- raw_spin_unlock_irq(&pci_lock); \
+ pos, sizeof(type), &data); \
+ raw_spin_unlock_irq(&pci_lock); \
if (ret) \
PCI_SET_ERROR_RESPONSE(val); \
else \
*val = (type)data; \
+ \
return pcibios_err_to_errno(ret); \
} \
EXPORT_SYMBOL_GPL(pci_user_read_config_##size);
@@ -244,14 +255,17 @@ int pci_user_write_config_##size \
(struct pci_dev *dev, int pos, type val) \
{ \
int ret = PCIBIOS_SUCCESSFUL; \
+ \
if (PCI_##size##_BAD) \
return -EINVAL; \
- raw_spin_lock_irq(&pci_lock); \
+ \
+ raw_spin_lock_irq(&pci_lock); \
if (unlikely(dev->block_cfg_access)) \
pci_wait_cfg(dev); \
ret = dev->bus->ops->write(dev->bus, dev->devfn, \
- pos, sizeof(type), val); \
- raw_spin_unlock_irq(&pci_lock); \
+ pos, sizeof(type), val); \
+ raw_spin_unlock_irq(&pci_lock); \
+ \
return pcibios_err_to_errno(ret); \
} \
EXPORT_SYMBOL_GPL(pci_user_write_config_##size);
--
2.39.2
next prev parent reply other threads:[~2024-04-29 9:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 9:47 [PATCH 1/2] PCI/ERR: Cleanup misleading indentation inside if conditions Ilpo Järvinen
2024-04-29 9:47 ` Ilpo Järvinen [this message]
2024-04-29 15:49 ` [PATCH 2/2] PCI: Cleanup accessor macros formatting Bjorn Helgaas
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