docs: DMA-API-HOWTO: add a missing "="
The === line is shorter than the section title. As this will generate a warning with rst build, fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>hifive-unleashed-5.2
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@ -147,7 +147,7 @@ networking subsystems make sure that the buffers they use are valid
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for you to DMA from/to.
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for you to DMA from/to.
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DMA addressing capabilities
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DMA addressing capabilities
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==========================
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===========================
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By default, the kernel assumes that your device can address 32-bits of DMA
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By default, the kernel assumes that your device can address 32-bits of DMA
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addressing. For a 64-bit capable device, this needs to be increased, and for
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addressing. For a 64-bit capable device, this needs to be increased, and for
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