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PCI/checkpatch: Deprecate DEFINE_PCI_DEVICE_TABLE

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Prefer use of the direct definition of struct pci_device_id instead of
indirection via macro DEFINE_PCI_DEVICE_TABLE.

Update the PCI documentation to deprecate DEFINE_PCI_DEVICE_TABLE.  Update
checkpatch adding --fix option.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
This commit is contained in:
Joe Perches 2013-12-13 11:36:22 -07:00 committed by Bjorn Helgaas
parent 5b764b834e
commit 92e112fdbb
3 changed files with 12 additions and 8 deletions
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6
Documentation/PCI/pci.txt
View File

@ -123,8 +123,10 @@ initialization with a pointer to a structure describing the driver
The ID table is an array of struct pci_device_id entries ending with an
all-zero entry; use of the macro DEFINE_PCI_DEVICE_TABLE is the preferred
method of declaring the table. Each entry consists of:
all-zero entry. Definitions with static const are generally preferred.
Use of the deprecated macro DEFINE_PCI_DEVICE_TABLE should be avoided.
Each entry consists of:
vendor,device Vendor and device ID to match (or PCI_ANY_ID)

3
include/linux/pci.h
View File

@ -634,8 +634,7 @@ struct pci_driver {
* DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
* @_table: device table name
*
* This macro is used to create a struct pci_device_id array (a device table)
* in a generic manner.
* This macro is deprecated and should not be used in new code.
*/
#define DEFINE_PCI_DEVICE_TABLE(_table) \
const struct pci_device_id _table[]

11
scripts/checkpatch.pl
View File

@ -2634,10 +2634,13 @@ sub process {
$herecurr);
}
# check for declarations of struct pci_device_id
if ($line =~ /\bstruct\s+pci_device_id\s+\w+\s*\[\s*\]\s*\=\s*\{/) {
WARN("DEFINE_PCI_DEVICE_TABLE",
"Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr);
# check for uses of DEFINE_PCI_DEVICE_TABLE
if ($line =~ /\bDEFINE_PCI_DEVICE_TABLE\s*\(\s*(\w+)\s*\)\s*=/) {
if (WARN("DEFINE_PCI_DEVICE_TABLE",
"Prefer struct pci_device_id over deprecated DEFINE_PCI_DEVICE_TABLE\n" . $herecurr) &&
$fix) {
$fixed[$linenr - 1] =~ s/\b(?:static\s+|)DEFINE_PCI_DEVICE_TABLE\s*\(\s*(\w+)\s*\)\s*=\s*/static const struct pci_device_id $1\[\] = /;
}
}
# check for new typedefs, only function parameters and sparse annotations