s390: use the correct count for __iowrite64_copy()

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[ Upstream commit 723a2cc8d6 ]

The signature for __iowrite64_copy() requires the number of 64 bit
quantities, not bytes. Multiple by 8 to get to a byte length before
invoking zpci_memcpy_toio()

Fixes: 87bc359b98 ("s390/pci: speed up __iowrite64_copy by using pci store block insn")
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/0-v1-9223d11a7662+1d7785-s390_iowrite64_jgg@nvidia.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jason Gunthorpe 2024-02-16 20:48:14 -04:00 • committed by Greg Kroah-Hartman

parent 0a32395fd1

commit ef6566d10c

1 changed files with 1 additions and 1 deletions

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arch/s390/pci/pci.c

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