The link stack flush status is not visible in debugfs. It can be enabled
even when count cache flush is disabled. Add separate file for its
status.
Signed-off-by: Michal Suchanek <redacted>
---
arch/powerpc/kernel/security.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index 7d4b2080a658..56dce4798a4d 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -446,14 +446,26 @@ static int count_cache_flush_get(void *data, u64 *val)
return 0;
}
+static int link_stack_flush_get(void *data, u64 *val)
+{
+ *val = link_stack_flush_enabled;
+
+ return 0;
+}
+
DEFINE_DEBUGFS_ATTRIBUTE(fops_count_cache_flush, count_cache_flush_get,
count_cache_flush_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_link_stack_flush, link_stack_flush_get,
+ count_cache_flush_set, "%llu\n");
static __init int count_cache_flush_debugfs_init(void)
{
debugfs_create_file_unsafe("count_cache_flush", 0600,
powerpc_debugfs_root, NULL,
&fops_count_cache_flush);
+ debugfs_create_file_unsafe("link_stack_flush", 0600,
+ powerpc_debugfs_root, NULL,
+ &fops_link_stack_flush);
return 0;
}
device_initcall(count_cache_flush_debugfs_init);--
2.23.0