From 67930995d7fb8ae7d2078822b563010b289ace2e Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 17 Jul 2015 15:27:34 -0500 Subject: [PATCH] PCI: Reduce size of ATS structure elements The extended capabilities list is linked with 12-bit pointers, and the ATS Smallest Translation Unit and Invalidate Queue Depth fields are both 5 bits. Use u16 and u8 to hold the extended capability address and the stu and qdep values. No functional change. Signed-off-by: Bjorn Helgaas Reviewed-by: Joerg Roedel --- include/linux/pci.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/pci.h b/include/linux/pci.h index 8bc16b5e4747..238b77e8ca41 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -376,9 +376,9 @@ struct pci_dev { struct pci_sriov *sriov; /* SR-IOV capability related */ struct pci_dev *physfn; /* the PF this VF is associated with */ }; - int ats_cap; /* ATS Capability offset */ - int ats_stu; /* ATS Smallest Translation Unit */ - int ats_qdep; /* ATS Invalidate Queue Depth */ + u16 ats_cap; /* ATS Capability offset */ + u8 ats_stu; /* ATS Smallest Translation Unit */ + u8 ats_qdep; /* ATS Invalidate Queue Depth */ atomic_t ats_ref_cnt; /* number of VFs with ATS enabled */ #endif phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */ -- 2.20.1