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| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-02-11 17:04:00 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:46:19 +0100 |
| commit | 7020a36d86bc76f49fffaf3cdf668b4a781a7b4f (patch) | |
| tree | 1e20ebb924bfd7f0ed2165ad9779d82ec9b7695f | |
| parent | 36f3abf8c0fccd453e45e9ab6638cbaa9ad48586 (diff) | |
| download | linux-stable-7020a36d86bc76f49fffaf3cdf668b4a781a7b4f.tar.gz linux-stable-7020a36d86bc76f49fffaf3cdf668b4a781a7b4f.tar.bz2 linux-stable-7020a36d86bc76f49fffaf3cdf668b4a781a7b4f.zip | |
PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio()
[ 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>
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index f9308c2f22e6..c2541a772abc 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -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 |