PCI: Constify label attribute_group structures
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 930 320 0 1250 4e2 drivers/pci/pci-label.o File size After adding 'const': text data bss dec hex filename 1058 192 0 1250 4ca drivers/pci/pci-label.o Signed-off-by: NArvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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