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authorJulian Braha <julianbraha@gmail.com>2026-03-31 00:45:49 +0300
committerBjorn Helgaas <bhelgaas@google.com>2026-03-31 01:21:46 +0300
commit7010f13acd3828056e50badb5138bf9ca21ddd8f (patch)
tree21e8f731b4b6a7be82bec0e2798a3584ac4380fb
parent47e2a338222c902dc44f4f6e29eb236a68600ef4 (diff)
downloadlinux-7010f13acd3828056e50badb5138bf9ca21ddd8f.tar.xz
PCI: Clean up dead code in Kconfig
There is already an 'if PCI' condition wrapping several config options, e.g., PCI_DOMAINS and VGA_ARB, making the 'depends on PCI' statement for each of these a duplicate dependency (dead code). Leave the outer 'if PCI...endif' and remove the individual 'depends on PCI' statement from each option. This dead code was found by kconfirm, a static analysis tool for Kconfig. Signed-off-by: Julian Braha <julianbraha@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/20260330214549.16157-1-julianbraha@gmail.com
-rw-r--r--drivers/pci/Kconfig12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index e3f848ffb52a..33c88432b728 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -31,7 +31,6 @@ if PCI
config PCI_DOMAINS
bool
- depends on PCI
config PCI_DOMAINS_GENERIC
bool
@@ -255,7 +254,7 @@ config PCI_DYNAMIC_OF_NODES
choice
prompt "PCI Express hierarchy optimization setting"
default PCIE_BUS_DEFAULT
- depends on PCI && EXPERT
+ depends on EXPERT
help
MPS (Max Payload Size) and MRRS (Max Read Request Size) are PCIe
device parameters that affect performance and the ability to
@@ -272,20 +271,17 @@ choice
config PCIE_BUS_TUNE_OFF
bool "Tune Off"
- depends on PCI
help
Use the BIOS defaults; don't touch MPS at all. This is the same
as booting with 'pci=pcie_bus_tune_off'.
config PCIE_BUS_DEFAULT
bool "Default"
- depends on PCI
help
Default choice; ensure that the MPS matches upstream bridge.
config PCIE_BUS_SAFE
bool "Safe"
- depends on PCI
help
Use largest MPS that boot-time devices support. If you have a
closed system with no possibility of adding new devices, this
@@ -294,7 +290,6 @@ config PCIE_BUS_SAFE
config PCIE_BUS_PERFORMANCE
bool "Performance"
- depends on PCI
help
Use MPS and MRRS for best performance. Ensure that a given
device's MPS is no larger than its parent MPS, which allows us to
@@ -303,7 +298,6 @@ config PCIE_BUS_PERFORMANCE
config PCIE_BUS_PEER2PEER
bool "Peer2peer"
- depends on PCI
help
Set MPS = 128 for all devices. MPS configuration effected by the
other options could cause the MPS on one root port to be
@@ -317,7 +311,7 @@ endchoice
config VGA_ARB
bool "VGA Arbitration" if EXPERT
default y
- depends on (PCI && !S390)
+ depends on !S390
select SCREEN_INFO if X86
help
Some "legacy" VGA devices implemented on PCI typically have the same
@@ -340,4 +334,4 @@ source "drivers/pci/endpoint/Kconfig"
source "drivers/pci/switch/Kconfig"
source "drivers/pci/pwrctrl/Kconfig"
-endif
+endif # PCI