From dff96636714f7712525b68c3f8556836ad87959a Mon Sep 17 00:00:00 2001
From: Wambui Karuga <wambui.karugax@gmail.com>
Date: Fri, 25 Oct 2019 12:49:07 +0300
Subject: drm: use DIV_ROUND_UP helper macro for calculations
Git-commit: b8c8a85995c5c14df8465bf1ab0b92a59641fa7c
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

Replace open coded divisor calculations with the DIV_ROUND_UP kernel
macro for better readability.
Issue found using coccinelle:
@@
expression n,d;
@@
(
- ((n + d - 1) / d)
+ DIV_ROUND_UP(n,d)
|
- ((n + (d - 1)) / d)
+ DIV_ROUND_UP(n,d)
)

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191025094907.3582-1-wambui.karugax@gmail.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/drm_agpsupport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
index 6e09f27fd9d6..4c7ad46fdd21 100644
--- a/drivers/gpu/drm/drm_agpsupport.c
+++ b/drivers/gpu/drm/drm_agpsupport.c
@@ -212,7 +212,7 @@ int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
 	if (!entry)
 		return -ENOMEM;
 
-	pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+	pages = DIV_ROUND_UP(request->size, PAGE_SIZE);
 	type = (u32) request->type;
 	memory = agp_allocate_memory(dev->agp->bridge, pages, type);
 	if (!memory) {
@@ -325,7 +325,7 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
 	entry = drm_agp_lookup_entry(dev, request->handle);
 	if (!entry || entry->bound)
 		return -EINVAL;
-	page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
+	page = DIV_ROUND_UP(request->offset, PAGE_SIZE);
 	retcode = drm_bind_agp(entry->memory, page);
 	if (retcode)
 		return retcode;
-- 
2.28.0