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dmaengine: dmatest: add short-hand `buf_size` var in dmatest_func() 

This is just a cosmetic change, since this variable gets used quite a bit
inside the dmatest_func() routine.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Alexandru Ardelean 2019-02-12 17:11:38 +02:00 committed by Vinod Koul
parent 361deb7243
commit 41d00bb7a6
1 changed files with 17 additions and 15 deletions
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32
drivers/dma/dmatest.c
View File

@ -516,6 +516,7 @@ static int dmatest_func(void *data)
enum dma_ctrl_flags flags; enum dma_ctrl_flags flags;
u8 *pq_coefs = NULL; u8 *pq_coefs = NULL;
int ret; int ret;
unsigned int buf_size;
struct dmatest_data *src; struct dmatest_data *src;
struct dmatest_data *dst; struct dmatest_data *dst;
int i; int i;
@ -580,9 +581,10 @@ static int dmatest_func(void *data)
goto err_free_coefs; goto err_free_coefs;
} }
if (1 << align > params->buf_size) { buf_size = params->buf_size;
if (1 << align > buf_size) {
pr_err("%u-byte buffer too small for %d-byte alignment\n", pr_err("%u-byte buffer too small for %d-byte alignment\n",
params->buf_size, 1 << align); buf_size, 1 << align);
goto err_free_coefs; goto err_free_coefs;
} }
@ -595,7 +597,7 @@ static int dmatest_func(void *data)
goto err_usrcs; goto err_usrcs;
for (i = 0; i < src->cnt; i++) { for (i = 0; i < src->cnt; i++) {
src->raw[i] = kmalloc(params->buf_size + align, src->raw[i] = kmalloc(buf_size + align,
GFP_KERNEL); GFP_KERNEL);
if (!src->raw[i]) if (!src->raw[i])
goto err_srcbuf; goto err_srcbuf;
@ -617,7 +619,7 @@ static int dmatest_func(void *data)
goto err_udsts; goto err_udsts;
for (i = 0; i < dst->cnt; i++) { for (i = 0; i < dst->cnt; i++) {
dst->raw[i] = kmalloc(params->buf_size + align, dst->raw[i] = kmalloc(buf_size + align,
GFP_KERNEL); GFP_KERNEL);
if (!dst->raw[i]) if (!dst->raw[i])
goto err_dstbuf; goto err_dstbuf;
@ -656,16 +658,16 @@ static int dmatest_func(void *data)
total_tests++; total_tests++;
if (params->transfer_size) { if (params->transfer_size) {
if (params->transfer_size >= params->buf_size) { if (params->transfer_size >= buf_size) {
pr_err("%u-byte transfer size must be lower than %u-buffer size\n", pr_err("%u-byte transfer size must be lower than %u-buffer size\n",
params->transfer_size, params->buf_size); params->transfer_size, buf_size);
break; break;
} }
len = params->transfer_size; len = params->transfer_size;
} else if (params->norandom) { } else if (params->norandom) {
len = params->buf_size; len = buf_size;
} else { } else {
len = dmatest_random() % params->buf_size + 1; len = dmatest_random() % buf_size + 1;
} }
/* Do not alter transfer size explicitly defined by user */ /* Do not alter transfer size explicitly defined by user */
@ -680,8 +682,8 @@ static int dmatest_func(void *data)
src->off = 0; src->off = 0;
dst->off = 0; dst->off = 0;
} else { } else {
src->off = dmatest_random() % (params->buf_size - len + 1); src->off = dmatest_random() % (buf_size - len + 1);
dst->off = dmatest_random() % (params->buf_size - len + 1); dst->off = dmatest_random() % (buf_size - len + 1);
src->off = (src->off >> align) << align; src->off = (src->off >> align) << align;
dst->off = (dst->off >> align) << align; dst->off = (dst->off >> align) << align;
@ -690,9 +692,9 @@ static int dmatest_func(void *data)
if (!params->noverify) { if (!params->noverify) {
start = ktime_get(); start = ktime_get();
dmatest_init_srcs(src->aligned, src->off, len, dmatest_init_srcs(src->aligned, src->off, len,
params->buf_size, is_memset); buf_size, is_memset);
dmatest_init_dsts(dst->aligned, dst->off, len, dmatest_init_dsts(dst->aligned, dst->off, len,
params->buf_size, is_memset); buf_size, is_memset);
diff = ktime_sub(ktime_get(), start); diff = ktime_sub(ktime_get(), start);
filltime = ktime_add(filltime, diff); filltime = ktime_add(filltime, diff);
@ -707,7 +709,7 @@ static int dmatest_func(void *data)
continue; continue;
} }
um->len = params->buf_size; um->len = buf_size;
for (i = 0; i < src->cnt; i++) { for (i = 0; i < src->cnt; i++) {
void *buf = src->aligned[i]; void *buf = src->aligned[i];
struct page *pg = virt_to_page(buf); struct page *pg = virt_to_page(buf);
@ -827,7 +829,7 @@ static int dmatest_func(void *data)
src->off + len, src->off, src->off + len, src->off,
PATTERN_SRC | PATTERN_COPY, true, is_memset); PATTERN_SRC | PATTERN_COPY, true, is_memset);
error_count += dmatest_verify(src->aligned, src->off + len, error_count += dmatest_verify(src->aligned, src->off + len,
params->buf_size, src->off + len, buf_size, src->off + len,
PATTERN_SRC, true, is_memset); PATTERN_SRC, true, is_memset);
pr_debug("%s: verifying dest buffer...\n", current->comm); pr_debug("%s: verifying dest buffer...\n", current->comm);
@ -839,7 +841,7 @@ static int dmatest_func(void *data)
PATTERN_SRC | PATTERN_COPY, false, is_memset); PATTERN_SRC | PATTERN_COPY, false, is_memset);
error_count += dmatest_verify(dst->aligned, dst->off + len, error_count += dmatest_verify(dst->aligned, dst->off + len,
params->buf_size, dst->off + len, buf_size, dst->off + len,
PATTERN_DST, false, is_memset); PATTERN_DST, false, is_memset);
diff = ktime_sub(ktime_get(), start); diff = ktime_sub(ktime_get(), start);