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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
36 lines
830 B
C
36 lines
830 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2001 - 2012 Tensilica Inc.
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* Copyright (C) 2014 - 2016 Cadence Design Systems Inc.
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*/
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#ifndef _XTENSA_BITOPS_H
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#define _XTENSA_BITOPS_H
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#include <asm/system.h>
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#include <asm-generic/bitops/fls.h>
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#include <asm-generic/bitops/__fls.h>
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#include <asm-generic/bitops/fls64.h>
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#include <asm-generic/bitops/__ffs.h>
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static inline int test_bit(int nr, const void *addr)
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{
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return ((unsigned char *)addr)[nr >> 3] & (1u << (nr & 7));
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}
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static inline int test_and_set_bit(int nr, volatile void *addr)
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{
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unsigned long flags;
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unsigned char tmp;
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unsigned char mask = 1u << (nr & 7);
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local_irq_save(flags);
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tmp = ((unsigned char *)addr)[nr >> 3];
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((unsigned char *)addr)[nr >> 3] |= mask;
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local_irq_restore(flags);
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return tmp & mask;
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}
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#endif /* _XTENSA_BITOPS_H */
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