Files
linux-nvgpu/drivers/gpu/nvgpu/common/utils/string.c
Scott Long 5ee9a446b5 gpu: nvgpu: misra 12.1 fixes
MISRA Advisory Rule states that the precedence of operators within
expressions should be made explicit.

This change removes the Advisory Rule 12.1 violations from various
common units.

Jira NVGPU-3178

Change-Id: I4b77238afdb929c81320efa93ac105f9e69af9cd
Signed-off-by: Scott Long <scottl@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2277480
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2020-12-15 14:10:29 -06:00

91 lines
2.2 KiB
C

/*
* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/string.h>
#include <nvgpu/log.h>
#include <nvgpu/static_analysis.h>
void
nvgpu_memcpy(u8 *destb, const u8 *srcb, size_t n)
{
(void) memcpy(destb, srcb, n);
}
int
nvgpu_memcmp(const u8 *b1, const u8 *b2, size_t n)
{
return memcmp(b1, b2, n);
}
int nvgpu_strnadd_u32(char *dst, const u32 value, size_t size, u32 radix)
{
int n;
u32 v;
char *p;
u32 digit;
if ((radix < 2U) || (radix > 16U)) {
return 0;
}
/* how many digits do we need ? */
n = 0;
v = value;
do {
n = nvgpu_safe_add_s32(n, 1);
v = v / radix;
} while (v > 0U);
/* bail out if there is not room for '\0' */
if (n >= nvgpu_safe_cast_u64_to_s32(size)) {
return 0;
}
/* number of digits (not including '\0') */
p = dst + n;
/* terminate with '\0' */
*p = '\0';
p--;
v = value;
do {
digit = v % radix;
*p = "0123456789abcdef"[digit];
v = v / radix;
p--;
}
while (v > 0U);
return n;
}
bool nvgpu_mem_is_word_aligned(struct gk20a *g, u8 *addr)
{
if (((unsigned long)addr % 4UL) != 0UL) {
nvgpu_log_info(g, "addr (%p) not 4-byte aligned", addr);
return false;
}
return true;
}