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[2/2] PCI: Change the type of 'rom_attr_enabled' in 'struct pci_dev'

Message ID d7a34ad369336db73145c3efbade895e792a0ad3.1687105455.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Delegated to: Bjorn Helgaas
Headers show
Series [1/2] PCI: Reorder some fields in 'struct pci_dev' | expand

Commit Message

Christophe JAILLET June 18, 2023, 4:24 p.m. UTC 
Make 'rom_attr_enabled' a single bit in a bitfield and move it close to an
existing bitfield so that they can be merged.

This field is only used in 'drivers/pci/pci-sysfs.c' to store 0 or 1.

On x86_64, this shrinks the size of 'struct pci_dev' by 8 bytes.
This goes from 3560 to 3552.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 include/linux/pci.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 106754757279..0ff7500772e6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -464,12 +464,12 @@  struct pci_dev {
 	unsigned int	no_vf_scan:1;		/* Don't scan for VFs after IOV enablement */
 	unsigned int	no_command_memory:1;	/* No PCI_COMMAND_MEMORY */
 	unsigned int	rom_bar_overlap:1;	/* ROM BAR disable broken */
+	unsigned int	rom_attr_enabled:1;	/* Display of ROM attribute enabled? */
 	pci_dev_flags_t dev_flags;
 	atomic_t	enable_cnt;	/* pci_enable_device has been called */
 
 	u32		saved_config_space[16]; /* Config space saved at suspend time */
 	struct hlist_head saved_cap_space;
-	int		rom_attr_enabled;	/* Display of ROM attribute enabled? */
 	struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
 	struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */