The XIVE interrupt mode can be disabled with the "xive=off" kernel
parameter, in which case there is nothing to present to the user in the
associated /sys/kernel/debug/powerpc/xive file.
Fixes: 930914b7d528 ("powerpc/xive: Add a debugfs file to dump internal XIVE
state")
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
arch/powerpc/sysdev/xive/common.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/common.c
b/arch/powerpc/sysdev/xive/common.c
index 3dbc94cb4380..f591be9f01f4 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -1664,7 +1664,8 @@ DEFINE_SHOW_ATTRIBUTE(xive_core_debug);
int xive_core_debug_init(void)
{
- debugfs_create_file("xive", 0400, powerpc_debugfs_root,
- NULL, &xive_core_debug_fops);
+ if (xive_enabled())
+ debugfs_create_file("xive", 0400, powerpc_debugfs_root,
+ NULL, &xive_core_debug_fops);
return 0;
}
--
2.25.4
