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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
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Vladimir Oltean
28aec9ca29
packing() is now used in some hot paths, and it would be good to get rid of some ifs and buts that depend on "op", to speed things up a little bit. With the main implementations now taking size_t endbit, we no longer have to check for negative values. Update the local integer variables to also be size_t to match. Signed-off-by: Vladimir Oltean <[email protected]> Signed-off-by: Jacob Keller <[email protected]> Reviewed-by: Przemek Kitszel <[email protected]> Reviewed-by: Vladimir Oltean <[email protected]> Link: https://patch.msgid.link/20241002-packing-kunit-tests-and-split-pack-unpack-v2-5-8373e551eae3@intel.com Signed-off-by: Jakub Kicinski <[email protected]>
30 lines
708 B
C
30 lines
708 B
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2016-2018 NXP
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* Copyright (c) 2018-2019, Vladimir Oltean <[email protected]>
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*/
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#ifndef _LINUX_PACKING_H
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#define _LINUX_PACKING_H
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#include <linux/types.h>
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#include <linux/bitops.h>
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#define QUIRK_MSB_ON_THE_RIGHT BIT(0)
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#define QUIRK_LITTLE_ENDIAN BIT(1)
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#define QUIRK_LSW32_IS_FIRST BIT(2)
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enum packing_op {
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PACK,
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UNPACK,
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};
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int packing(void *pbuf, u64 *uval, int startbit, int endbit, size_t pbuflen,
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enum packing_op op, u8 quirks);
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int pack(void *pbuf, u64 uval, size_t startbit, size_t endbit, size_t pbuflen,
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u8 quirks);
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int unpack(const void *pbuf, u64 *uval, size_t startbit, size_t endbit,
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size_t pbuflen, u8 quirks);
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#endif
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