diff options
| author | Cédric Le Goater <clg@kaod.org> | 2020-04-29 10:51:22 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-28 16:24:32 +0300 |
| commit | 0755e85570a4615ca674ad6489d44d63916f1f3e (patch) | |
| tree | db222c055a90bd7a2c2f40e59362ee64fd590854 | |
| parent | a101950fcb78b0ba20cd487be6627dea58d55c2b (diff) | |
| download | linux-0755e85570a4615ca674ad6489d44d63916f1f3e.tar.xz | |
powerpc/xive: Do not expose a debugfs file when XIVE is disabled
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 <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200429075122.1216388-4-clg@kaod.org
| -rw-r--r-- | arch/powerpc/sysdev/xive/common.c | 5 |
1 files 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; } |