On 01/02/21 09:38, Jiapeng Chong wrote:
Fix the following coccicheck warning:
./arch/x86/kvm/debugfs.c:44:0-23: WARNING: vcpu_tsc_scaling_frac_fops
should be defined with DEFINE_DEBUGFS_ATTRIBUTE.
./arch/x86/kvm/debugfs.c:36:0-23: WARNING: vcpu_tsc_scaling_fops should
be defined with DEFINE_DEBUGFS_ATTRIBUTE.
./arch/x86/kvm/debugfs.c:27:0-23: WARNING: vcpu_tsc_offset_fops should
be defined with DEFINE_DEBUGFS_ATTRIBUTE.
Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/debugfs.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/debugfs.c b/arch/x86/kvm/debugfs.c
index 7e818d6..9c0e29e 100644
--- a/arch/x86/kvm/debugfs.c
+++ b/arch/x86/kvm/debugfs.c
@@ -15,7 +15,7 @@ static int vcpu_get_timer_advance_ns(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(vcpu_timer_advance_ns_fops, vcpu_get_timer_advance_ns, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(vcpu_timer_advance_ns_fops, vcpu_get_timer_advance_ns, NULL, "%llu\n");
static int vcpu_get_tsc_offset(void *data, u64 *val)
{
@@ -24,7 +24,7 @@ static int vcpu_get_tsc_offset(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(vcpu_tsc_offset_fops, vcpu_get_tsc_offset, NULL, "%lld\n");
+DEFINE_DEBUGFS_ATTRIBUTE(vcpu_tsc_offset_fops, vcpu_get_tsc_offset, NULL, "%lld\n");
static int vcpu_get_tsc_scaling_ratio(void *data, u64 *val)
{
@@ -33,7 +33,7 @@ static int vcpu_get_tsc_scaling_ratio(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(vcpu_tsc_scaling_fops, vcpu_get_tsc_scaling_ratio, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(vcpu_tsc_scaling_fops, vcpu_get_tsc_scaling_ratio, NULL, "%llu\n");
static int vcpu_get_tsc_scaling_frac_bits(void *data, u64 *val)
{
@@ -41,7 +41,8 @@ static int vcpu_get_tsc_scaling_frac_bits(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(vcpu_tsc_scaling_frac_fops, vcpu_get_tsc_scaling_frac_bits, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(vcpu_tsc_scaling_frac_fops, vcpu_get_tsc_scaling_frac_bits,
+ NULL, "%llu\n");
void kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry)
{
If you wanted to do this, you would have to use
debugfs_create_file_unsafe() as well.
In practice, nobody does that because it's not a performance-sensitive
path and it's not worth the maintenance cost of using a less safe API.
Paolo
