From 0755e85570a4615ca674ad6489d44d63916f1f3e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Wed, 29 Apr 2020 09:51:22 +0200 Subject: powerpc/xive: Do not expose a debugfs file when XIVE is disabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200429075122.1216388-4-clg@kaod.org --- arch/powerpc/sysdev/xive/common.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/sysdev') 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; } -- cgit v1.2.3