threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
29 lines
626 B
C
29 lines
626 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_MICROBLAZE_ATOMIC_H
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#define _ASM_MICROBLAZE_ATOMIC_H
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#include <asm/cmpxchg.h>
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#include <asm-generic/atomic.h>
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#include <asm-generic/atomic64.h>
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/*
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* Atomically test *v and decrement if it is greater than 0.
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* The function returns the old value of *v minus 1.
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*/
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static inline int atomic_dec_if_positive(atomic_t *v)
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{
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unsigned long flags;
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int res;
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local_irq_save(flags);
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res = v->counter - 1;
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if (res >= 0)
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v->counter = res;
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local_irq_restore(flags);
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return res;
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}
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#define atomic_dec_if_positive atomic_dec_if_positive
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#endif /* _ASM_MICROBLAZE_ATOMIC_H */
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