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| author | Frank Li <Frank.Li@nxp.com> | 2024-05-02 15:59:03 -0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-07-09 17:57:59 -0500 |
| commit | a50c7de0607c65af588900b1236d88faf561374e (patch) | |
| tree | d5b61cd449706f3d39917febee5e95fc401c2464 /drivers/pci/controller/dwc/pci-keystone.c | |
| parent | 2a35703a6a00e87bf65d61e70516ae2524f70ec7 (diff) | |
misc: pci_endpoint_test: Refactor dma_set_mask_and_coherent() logic
dma_set_mask_and_coherent() should never fail when the mask is >= 32bit,
unless the architecture has no DMA support. So no need to check for the
error and also no need to set dma_set_mask_and_coherent(32) as a fallback.
Even if dma_set_mask_and_coherent(48) fails due to the lack of DMA support
(theoretically), then dma_set_mask_and_coherent(32) will also fail for the
same reason. So the fallback doesn't make sense.
Simplify the code by setting the streaming and coherent DMA mask to 48
bits.
Link: https://lore.kernel.org/linux-pci/20240502195903.3191049-1-Frank.Li@nxp.com
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pci-keystone.c')
0 files changed, 0 insertions, 0 deletions