diff options
| -rw-r--r-- | drivers/dma/dmatest.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index ea1f885e70f4..3b148c2647f8 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -516,6 +516,7 @@ static int dmatest_func(void *data) enum dma_ctrl_flags flags; u8 *pq_coefs = NULL; int ret; + unsigned int buf_size; struct dmatest_data *src; struct dmatest_data *dst; int i; @@ -580,9 +581,10 @@ static int dmatest_func(void *data) 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", - params->buf_size, 1 << align); + buf_size, 1 << align); goto err_free_coefs; } @@ -595,7 +597,7 @@ static int dmatest_func(void *data) goto err_usrcs; for (i = 0; i < src->cnt; i++) { - src->raw[i] = kmalloc(params->buf_size + align, + src->raw[i] = kmalloc(buf_size + align, GFP_KERNEL); if (!src->raw[i]) goto err_srcbuf; @@ -617,7 +619,7 @@ static int dmatest_func(void *data) goto err_udsts; for (i = 0; i < dst->cnt; i++) { - dst->raw[i] = kmalloc(params->buf_size + align, + dst->raw[i] = kmalloc(buf_size + align, GFP_KERNEL); if (!dst->raw[i]) goto err_dstbuf; @@ -656,16 +658,16 @@ static int dmatest_func(void *data) total_tests++; 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", - params->transfer_size, params->buf_size); + params->transfer_size, buf_size); break; } len = params->transfer_size; } else if (params->norandom) { - len = params->buf_size; + len = buf_size; } else { - len = dmatest_random() % params->buf_size + 1; + len = dmatest_random() % buf_size + 1; } /* Do not alter transfer size explicitly defined by user */ @@ -680,8 +682,8 @@ static int dmatest_func(void *data) src->off = 0; dst->off = 0; } else { - src->off = dmatest_random() % (params->buf_size - len + 1); - dst->off = dmatest_random() % (params->buf_size - len + 1); + src->off = dmatest_random() % (buf_size - len + 1); + dst->off = dmatest_random() % (buf_size - len + 1); src->off = (src->off >> align) << align; dst->off = (dst->off >> align) << align; @@ -690,9 +692,9 @@ static int dmatest_func(void *data) if (!params->noverify) { start = ktime_get(); 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, - params->buf_size, is_memset); + buf_size, is_memset); diff = ktime_sub(ktime_get(), start); filltime = ktime_add(filltime, diff); @@ -707,7 +709,7 @@ static int dmatest_func(void *data) continue; } - um->len = params->buf_size; + um->len = buf_size; for (i = 0; i < src->cnt; i++) { void *buf = src->aligned[i]; struct page *pg = virt_to_page(buf); @@ -827,7 +829,7 @@ static int dmatest_func(void *data) src->off + len, src->off, PATTERN_SRC | PATTERN_COPY, true, is_memset); 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); 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); 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); diff = ktime_sub(ktime_get(), start); |