lkml.org 
[lkml]   [2015]   [Oct]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 12/12] iommu/amd: Remove find_last_devid_on_pci()
Date
From: Joerg Roedel <jroedel@suse.de>

The value read from the PCI header is not reliable, so
remove this code.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/amd_iommu_init.c | 19 -------------------
1 file changed, 19 deletions(-)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index e3afa37..65674104 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -408,20 +408,6 @@ static inline int ivhd_entry_length(u8 *ivhd)
}

/*
- * This function reads the last device id the IOMMU has to handle from the PCI
- * capability header for this IOMMU
- */
-static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr)
-{
- u32 cap;
-
- cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
- update_last_devid(PCI_DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
-
- return 0;
-}
-
-/*
* After reading the highest device id from the IOMMU PCI capability header
* this function looks if there is a higher device id defined in the ACPI table
*/
@@ -433,11 +419,6 @@ static int __init find_last_devid_from_ivhd(struct ivhd_header *h)
p += sizeof(*h);
end += h->length;

- find_last_devid_on_pci(PCI_BUS_NUM(h->devid),
- PCI_SLOT(h->devid),
- PCI_FUNC(h->devid),
- h->cap_ptr);
-
while (p < end) {
dev = (struct ivhd_entry *)p;
switch (dev->type) {
--
1.9.1


\
 
 \ /
  Last update: 2015-10-20 17:41    [W:0.059 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site