@@ -76,12 +76,12 @@ static int nvme_wait_ready(struct nvme_dev *dev, bool enabled)
static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2,
int total_len, u64 dma_addr)
{
- u32 page_size = dev->page_size;
+ const u32 page_size = dev->page_size;
+ const u32 prps_per_page = (page_size >> 3) - 1;
int offset = dma_addr & (page_size - 1);
u64 *prp_pool;
int length = total_len;
int i, nprps;
- u32 prps_per_page = (page_size >> 3) - 1;
u32 num_pages;
length -= (page_size - offset);
@@ -119,9 +119,9 @@ static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2,
prp_pool = dev->prp_pool;
i = 0;
while (nprps) {
- if (i == ((page_size >> 3) - 1)) {
- *(prp_pool + i) = cpu_to_le64((ulong)prp_pool +
- page_size);
+ if (i == prps_per_page) {
+ u64 next_prp_list = (u64)prp_pool + page_size;
+ *(prp_pool + i) = cpu_to_le64(next_prp_list);
i = 0;
prp_pool += page_size;
}
Improve readability by introducing consts, reuse consts where appropriate and adding variables with discriptive name. Signed-off-by: Stefan Agner <stefan@agner.ch> --- drivers/nvme/nvme.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)