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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Carsten Haitzler
7f9757005c
[ Upstream commit be3e477eff ]
KASAN found this problem. find_first_bit() expects to look at a
pointer pointing to a long, but we look at a u32 - this is going to be
an issue with endianness but, KSAN already flags this as out-of-bounds
stack reads. This fixes it by just importing inot a local long.
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201218150812.68195-1-carsten.haitzler@foss.arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
44 lines
968 B
C
44 lines
968 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
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* Author: James.Qian.Wang <james.qian.wang@arm.com>
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*
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*/
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#ifndef _MALIDP_UTILS_
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#define _MALIDP_UTILS_
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#include <linux/delay.h>
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#include <linux/errno.h>
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#define has_bit(nr, mask) (BIT(nr) & (mask))
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#define has_bits(bits, mask) (((bits) & (mask)) == (bits))
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#define dp_wait_cond(__cond, __tries, __min_range, __max_range) \
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({ \
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int num_tries = __tries; \
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while (!__cond && (num_tries > 0)) { \
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usleep_range(__min_range, __max_range); \
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num_tries--; \
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} \
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(__cond) ? 0 : -ETIMEDOUT; \
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})
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/* the restriction of range is [start, end] */
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struct malidp_range {
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u32 start;
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u32 end;
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};
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static inline void set_range(struct malidp_range *rg, u32 start, u32 end)
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{
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rg->start = start;
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rg->end = end;
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}
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static inline bool in_range(struct malidp_range *rg, u32 v)
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{
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return (v >= rg->start) && (v <= rg->end);
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}
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#endif /* _MALIDP_UTILS_ */
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