On Wed, Jan 11, 2023 at 11:42:57AM -0800, William Zhang wrote: > On 01/10/2023 01:18 PM, Mark Brown wrote: > > spi_replace_transfers(). > Okay I saw this function is used by spi_split_transfers_maxsize which a few > drivers use to limit the transfer size and it make sense. I can come up > something like spi_merge_transfers to be used by my driver's prepend > function. But it has the same issue I mentioned early as the these tx, rx > transfers have the dependency on the order they present in the original > transfer list for my prepend function to work. And for the same reason, it > won't be generally useful for other drivers. I wouldn't be surprised if something else turned up which had similar constraints, SPI isn't the most complex thing ever so there's a lot of patterns in controlers that get reproduced.
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