[PATCH] drm: Simplify maximum determination in drm_ioctl()

[Markus Elfring]

From: Markus Elfring <elfring at users.sourceforge.net>
Date: Fri, 28 Feb 2025 17:18:07 +0100

Replace nested max() calls by single max3() call in this
function implementation.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring at users.sourceforge.net>
---
 drivers/gpu/drm/drm_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index f593dc569d31..115a8eb0d8a5 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -856,7 +856,7 @@ long drm_ioctl(struct file *filp,
 		in_size = 0;
 	if ((cmd & ioctl->cmd & IOC_OUT) == 0)
 		out_size = 0;
-	ksize = max(max(in_size, out_size), drv_size);
+	ksize = max3(in_size, out_size, drv_size);

 	drm_dbg_core(dev, "comm=\"%s\" pid=%d, dev=0x%lx, auth=%d, %s\n",
 		     current->comm, task_pid_nr(current),
--
2.48.1