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usb: composite: Move bitmap related operations to ./include/linux/bitmap.h

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The BITMAP related operations can now be moved to ./include/linux/bitmap.h
file to mimic the Linux kernel directory tree.

This change also allows to remove the lin_gadget_compat.h header file
(which is a legacy code only for composite U-boot layer).
It was also possible to remove #includes from several USB gadget drivers.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Agner <stefan.agner@toradex.com>
This commit is contained in:
Lukasz Majewski
2018-11-23 17:36:19 +01:00
committed by Marek Vasut
parent bb00a015d6
commit 916fa09799
14 changed files with 28 additions and 46 deletions
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23
include/linux/bitmap.h Normal file
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@@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0+
#ifndef __LINUX_BITMAP_H
#define __LINUX_BITMAP_H
#include <asm/types.h>
#include <linux/types.h>
#include <linux/bitops.h>
#define small_const_nbits(nbits) \
(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
static inline void bitmap_zero(unsigned long *dst, int nbits)
{
if (small_const_nbits(nbits)) {
*dst = 0UL;
} else {
int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
memset(dst, 0, len);
}
}
#endif /* __LINUX_BITMAP_H */