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authorMarek Behún <kabel@kernel.org>2021-10-28 20:56:53 +0200
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2021-10-29 10:25:31 +0100
commit7a41ae80bdcb17e14dd7d83239b8a0cf368f18be (patch)
tree3b9c4d9144556f0574f11cc0c1e9dcfe62c46b06 /drivers/pci/controller/pci-aardvark.c
parent2b650b7ff20eb7ea8ef9031d20fb657286ab90cc (diff)
PCI: pci-bridge-emul: Fix emulation of W1C bits
The pci_bridge_emul_conf_write() function correctly clears W1C bits in cfgspace cache, but it does not inform the underlying implementation about the clear request: the .write_op() method is given the value with these bits cleared. This is wrong if the .write_op() needs to know which bits were requested to be cleared. Fix the value to be passed into the .write_op() method to have requested W1C bits set, so that it can clear them. Both pci-bridge-emul users (mvebu and aardvark) are compatible with this change. Link: https://lore.kernel.org/r/20211028185659.20329-2-kabel@kernel.org Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org Cc: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'drivers/pci/controller/pci-aardvark.c')
0 files changed, 0 insertions, 0 deletions