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PCI: Add PCI_STD_NUM_BARS for the number of standard BARs

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Code that iterates over all standard PCI BARs typically uses
PCI_STD_RESOURCE_END.  However, that requires the unusual test
"i <= PCI_STD_RESOURCE_END" rather than something the typical
"i < PCI_STD_NUM_BARS".

Add a definition for PCI_STD_NUM_BARS and change loops to use the more
idiomatic C style to help avoid fencepost errors.

Link: https://lore.kernel.org/r/20190927234026.23342-1-efremov@linux.com
Link: https://lore.kernel.org/r/20190927234308.23935-1-efremov@linux.com
Link: https://lore.kernel.org/r/20190916204158.6889-3-efremov@linux.com
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sebastian Ott <sebott@linux.ibm.com>			# arch/s390/
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>	# video/fbdev/
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>	# pci/controller/dwc/
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>		# scsi/pm8001/
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>	# scsi/pm8001/
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>			# memstick/
This commit is contained in:
Denis Efremov
2019-09-28 02:43:08 +03:00
committed by Bjorn Helgaas
parent 7608158df3
commit c9c13ba428
46 changed files with 110 additions and 113 deletions
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2
include/linux/pci-epc.h
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@@ -117,7 +117,7 @@ struct pci_epc_features {
unsigned int msix_capable : 1;
u8 reserved_bar;
u8 bar_fixed_64bit;
u64 bar_fixed_size[BAR_5 + 1];
u64 bar_fixed_size[PCI_STD_NUM_BARS];
size_t align;
};