Group some bitfield variables to reduce hole.
On x86_64, this shrinks the size of 'struct pci_dev' by 16 bytes when
compiled with 'allmodconfig'. This goes from 3576 to 3560.
The move related to CONFIG_PCIEASPM depends on the config. But it gives
the opportunity to merge to bitfields.
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
include/linux/pci.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index c69a2cc1f412..106754757279 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -366,8 +366,8 @@ struct pci_dev {
pci_power_t current_state; /* Current operating state. In ACPI,
this is D0-D3, D0 being fully
functional, and D3 being off. */
- unsigned int imm_ready:1; /* Supports Immediate Readiness */
u8 pm_cap; /* PM capability offset */
+ unsigned int imm_ready:1; /* Supports Immediate Readiness */
unsigned int pme_support:5; /* Bitmask of states from which PME#
can be generated */
unsigned int pme_poll:1; /* Poll device's PME status bit */
@@ -392,9 +392,9 @@ struct pci_dev {
#ifdef CONFIG_PCIEASPM
struct pcie_link_state *link_state; /* ASPM link state */
+ u16 l1ss; /* L1SS Capability pointer */
unsigned int ltr_path:1; /* Latency Tolerance Reporting
supported from root to here */
- u16 l1ss; /* L1SS Capability pointer */
#endif
unsigned int pasid_no_tlp:1; /* PASID works without TLP Prefix */
unsigned int eetlp_prefix_path:1; /* End-to-End TLP Prefix */
--
2.34.1
