Johan Hovold 1e1f461ea5 PCI/ASPM: Add pci_enable_link_state_locked() ...

commit 718ab82266 upstream.

Add pci_enable_link_state_locked() for enabling link states that can be
used in contexts where a pci_bus_sem read lock is already held (e.g. from
pci_walk_bus()).

This helper will be used to fix a couple of potential deadlocks where
the current helper is called with the lock already held, hence the CC
stable tag.

Fixes: f492edb40b ("PCI: vmd: Add quirk to configure PCIe ASPM and LTR")
Link: https://lore.kernel.org/r/20231128081512.19387-2-johan+linaro@kernel.org
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
[bhelgaas: include helper name in subject, commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: <stable@vger.kernel.org>	# 6.3
Cc: Michael Bottini <michael.a.bottini@linux.intel.com>
Cc: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-12-20 17:01:53 +01:00

..

acpi

ACPI: PM: Add acpi_device_fix_up_power_children() function

2023-12-03 07:33:07 +01:00

asm-generic

Merge tag 'hyperv-fixes-signed-20231009' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2023-10-10 11:01:21 -07:00

clocksource

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crypto

Merge tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2023-08-29 11:23:29 -07:00

drm

drm/atomic-helpers: Invoke end_fb_access while owning plane state

2023-12-13 18:45:25 +01:00

dt-bindings

Merge tag 'iommu-updates-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2023-09-01 16:54:25 -07:00

keys

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kunit

Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-08-29 14:53:51 -07:00

kvm

KVM: arm64: timers: Correctly handle TGE flip with CNTPOFF_EL2

2023-10-12 16:55:21 +01:00

linux

PCI/ASPM: Add pci_enable_link_state_locked()

2023-12-20 17:01:53 +01:00

math-emu

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media

media: ipu-bridge: increase sensor_name size

2023-11-28 17:19:46 +00:00

memory

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misc

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net

net/sched: act_ct: Take per-cb reference to tcf_ct_flow_table

2023-12-20 17:01:47 +01:00

pcmcia

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ras

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rdma

RDMA/core: Fix umem iterator when PAGE_SIZE is greater then HCA pgsz

2023-12-13 18:45:16 +01:00

rv

rv: Set variable 'da_mon_##name' to static

2023-09-01 21:00:00 -04:00

scsi

scsi: sd: Fix system start for ATA devices

2023-12-08 08:52:17 +01:00

soc

firmware: tegra: Add suspend hook and reset BPMP IPC early on resume

2023-11-20 11:59:16 +01:00

sound

ASoC: soc-dai: add flag to mute and unmute stream during trigger

2023-11-28 17:20:04 +00:00

target

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trace

rxrpc: Fix RTT determination to use any ACK as a source

2023-12-03 07:33:02 +01:00

uapi

fuse: Rename DIRECT_IO_RELAX to DIRECT_IO_ALLOW_MMAP

2023-12-20 17:01:51 +01:00

ufs

Merge branch 'fixes' into misc

2023-09-02 08:25:19 +01:00

vdso

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video

fbdev: stifb: Make the STI next font pointer a 32-bit signed offset

2023-11-28 17:19:58 +00:00

xen

arm/xen: remove lazy mode related definitions

2023-09-19 07:04:49 +02:00