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PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio()

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[ Upstream commit 726dabfde6aa35a4f1508e235ae37edbbf9fbc65 ]

Functions copying from/to IO addresses should use the
memcpy_fromio()/memcpy_toio() API rather than plain memcpy().

Fix the issue detected through the sparse tool.

Fixes: 349e7a85b25f ("PCI: endpoint: functions: Add an EP function to test PCI")
Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
[lorenzo.pieralisi@arm.com: updated log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
CC: Niklas Cassel <niklas.cassel@axis.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
CC: linux-pci@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wen Yang 2019-02-11 17:04:00 +08:00 committed by Greg Kroah-Hartman
parent 36f3abf8c0
commit 7020a36d86
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/endpoint/functions/pci-epf-test.c
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@ -177,7 +177,7 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test)
goto err_map_addr;
}
memcpy(buf, src_addr, reg->size);
memcpy_fromio(buf, src_addr, reg->size);
crc32 = crc32_le(~0, buf, reg->size);
if (crc32 != reg->checksum)
@ -231,7 +231,7 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test)
get_random_bytes(buf, reg->size);
reg->checksum = crc32_le(~0, buf, reg->size);
memcpy(dst_addr, buf, reg->size);
memcpy_toio(dst_addr, buf, reg->size);
/*
* wait 1ms inorder for the write to complete. Without this delay L3