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Filename Latest commit message Latest commit date
Wei Liu 48b5730852 PCI: hv: Return zero, not garbage, when reading PCI_INTERRUPT_PIN
commit fea93a3e5d5e6a09eb153866d2ce60ea3287a70d upstream.

The intent of the code snippet is to always return 0 for both
PCI_INTERRUPT_LINE and PCI_INTERRUPT_PIN.

The check misses PCI_INTERRUPT_PIN. This patch fixes that.

This is discovered by this call in VFIO:

    pci_read_config_byte(vdev->pdev, PCI_INTERRUPT_PIN, &pin);

The old code does not set *val to 0 because it misses the check for
PCI_INTERRUPT_PIN. Garbage is returned in that case.

Fixes: 4daace0d8c ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs")
Link: https://lore.kernel.org/linux-pci/20240701202606.129606-1-wei.liu@kernel.org
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-19 05:33:37 +02:00
arch m68k: amiga: Turn off Warp1260 interrupts during boot 2024-08-19 05:33:36 +02:00
block
certs
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:28:51 +02:00
Documentation ASoC: dt-bindings: rt5645: add cbj sleeve gpio property 2024-06-16 13:28:31 +02:00
drivers PCI: hv: Return zero, not garbage, when reading PCI_INTERRUPT_PIN 2024-08-19 05:33:37 +02:00
fs ext4: make sure the first directory block is not a hole 2024-08-19 05:33:36 +02:00
include m68k: amiga: Turn off Warp1260 interrupts during boot 2024-08-19 05:33:36 +02:00
init
ipc
kernel tick/broadcast: Make takeover of broadcast hrtimer reliable 2024-08-19 05:33:35 +02:00
lib mlxsw: spectrum_acl_erp: Fix object nesting warning 2024-08-19 05:33:28 +02:00
LICENSES
mm Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" 2024-07-18 11:40:51 +02:00
net ipv6: take care of scope when choosing the src addr 2024-08-19 05:33:35 +02:00
samples
scripts kconfig: remove wrong expr_trans_bool() 2024-07-27 10:38:29 +02:00
security
sound ASoC: max98088: Check for clk_prepare_enable() error 2024-08-19 05:33:33 +02:00
tools tools/memory-model: Fix bug in lock.cat 2024-08-19 05:33:37 +02:00
usr
virt KVM: async_pf: Cleanup kvm_setup_async_pf() 2024-05-02 16:18:32 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.281 2024-07-27 10:38:33 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.