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spi: Replace if-else-if by bitops and multiplications
Instead of if-else-if, simply call roundup_pow_of_two(BITS_PER_BYTES()). Note, there is no division assumed as compiler may optimize it away. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230710154932.68377-4-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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1 changed files with 1 additions and 7 deletions
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@ -3643,13 +3643,7 @@ int spi_split_transfers_maxwords(struct spi_controller *ctlr,
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size_t maxsize;
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int ret;
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if (xfer->bits_per_word <= 8)
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maxsize = maxwords;
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else if (xfer->bits_per_word <= 16)
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maxsize = 2 * maxwords;
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else
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maxsize = 4 * maxwords;
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maxsize = maxwords * roundup_pow_of_two(BITS_TO_BYTES(xfer->bits_per_word));
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if (xfer->len > maxsize) {
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ret = __spi_split_transfer_maxsize(ctlr, msg, &xfer,
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maxsize, gfp);
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