linux-kernel - [PATCH] USB: core: constify vm_operations

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Date:   Thu, 24 Aug 2017 16:47:09 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     gregkh@...uxfoundation.org, mateuszb@...tmail.fm,
        viro@...iv.linux.org.uk
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: [PATCH] USB: core: constify vm_operations_struct

vm_operations_struct are not supposed to change at runtime.
All functions working with const vm_operations_struct.
So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/usb/core/devio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index ebe2759..ddb3440 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -210,7 +210,7 @@ static void usbdev_vm_close(struct vm_area_struct *vma)
 	dec_usb_memory_use_count(usbm, &usbm->vma_use_count);
 }
 
-static struct vm_operations_struct usbdev_vm_ops = {
+static const struct vm_operations_struct usbdev_vm_ops = {
 	.open = usbdev_vm_open,
 	.close = usbdev_vm_close
 };
-- 
1.9.1