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https://github.com/projectacrn/acrn-hypervisor.git
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96b422ce9d
Move 8-bit sum code to a separate new function calculate_sum8() in util.h and replace the old code with a call to calculate_sum8() Minor code cleanup in found_rsdp() to make it more readable. Both break and continue statements are used in a single for loop, changed to only use break statement to make the logic simpler. Fixed some coding style issues reported by checkpatch.pl for file hypervisor/boot/acpi_base.c Tracked-On: #3601 Signed-off-by: dongshen <dongsheng.x.zhang@intel.com> Reviewed-by: Eddie Dong <eddie.dong@intel.com>
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef UTIL_H
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#define UTIL_H
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#include <types.h>
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#define offsetof(st, m) __builtin_offsetof(st, m)
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#define va_start __builtin_va_start
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#define va_end __builtin_va_end
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/** Roundup (x/y) to ( x/y + (x%y) ? 1 : 0) **/
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#define INT_DIV_ROUNDUP(x, y) ((((x)+(y))-1)/(y))
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#define min(x, y) ((x) < (y)) ? (x) : (y)
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#define max(x, y) ((x) < (y)) ? (y) : (x)
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/** Replaces 'x' by the string "x". */
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#define STRINGIFY(x) #x
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/* Macro used to check if a value is aligned to the required boundary.
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* Returns TRUE if aligned; FALSE if not aligned
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* NOTE: The required alignment must be a power of 2 (2, 4, 8, 16, 32, etc)
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*/
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static inline bool mem_aligned_check(uint64_t value, uint64_t req_align)
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{
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return ((value & (req_align - 1UL)) == 0UL);
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}
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/**
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* @pre buf != NULL
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*/
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static inline uint8_t calculate_sum8(const void *buf, uint32_t length)
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{
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uint32_t i;
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uint8_t sum = 0U;
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for (i = 0U; i < length; i++) {
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sum += *((const uint8_t *)buf + i);
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}
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return sum;
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}
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#endif /* UTIL_H */
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