From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 1 Aug 2007 00:12:22 +0000 (+1000)
Subject: KVM: Remove stat_set from debugfs
X-Git-Tag: Ubuntu-5.4-5.4.0-11.14~42206^2~59
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=3dea7ca7160f80dd6d31c0bbeb2d871e51b567b6;p=mirror_ubuntu-focal-kernel.git

KVM: Remove stat_set from debugfs

We shouldn't define stat_set on the debug attributes, since that will
cause silent failure on writing: without a set argument, userspace
will get -EACCESS.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 55639aceca63..25d76a5a9999 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -3017,11 +3017,7 @@ static u64 stat_get(void *_offset)
 	return total;
 }
 
-static void stat_set(void *offset, u64 val)
-{
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(stat_fops, stat_get, stat_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(stat_fops, stat_get, NULL, "%llu\n");
 
 static __init void kvm_init_debug(void)
 {