From 740a998d58eecf00e0ba7bbe8cf1c0351a91a331 Mon Sep 17 00:00:00 2001 From: Madhumitha Prabakaran Date: Wed, 3 Apr 2019 10:06:43 -0500 Subject: [PATCH] Staging: gasket: Use DIV_ROUND_UP Use DIV_ROUND_UP in-kernel function to make code simple and more understandable. Issue found using Coccinelle. Signed-off-by: Madhumitha Prabakaran Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gasket/gasket_page_table.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c index 26755d9ca41d..600928f63577 100644 --- a/drivers/staging/gasket/gasket_page_table.c +++ b/drivers/staging/gasket/gasket_page_table.c @@ -768,8 +768,7 @@ static bool gasket_is_extended_dev_addr_bad(struct gasket_page_table *pg_tbl, page_lvl0_idx = gasket_extended_lvl0_page_idx(pg_tbl, dev_addr); /* Get the count of affected level 0 pages. */ - num_lvl0_pages = (num_pages + GASKET_PAGES_PER_SUBTABLE - 1) / - GASKET_PAGES_PER_SUBTABLE; + num_lvl0_pages = DIV_ROUND_UP(num_pages, GASKET_PAGES_PER_SUBTABLE); if (gasket_components_to_dev_address(pg_tbl, 0, page_global_idx, page_offset) != dev_addr) { @@ -1258,7 +1257,7 @@ int gasket_alloc_coherent_memory(struct gasket_dev *gasket_dev, u64 size, dma_addr_t handle; void *mem; int j; - unsigned int num_pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; + unsigned int num_pages = DIV_ROUND_UP(size, PAGE_SIZE); const struct gasket_driver_desc *driver_desc = gasket_get_driver_desc(gasket_dev);