Commit 0755e855 authored Apr 29, 2020 by Cédric Le Goater Committed by Michael Ellerman May 28, 2020

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: 930914b7 ("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

parent a101950f

arch/powerpc/sysdev/xive/common.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1664,6 +1664,7 @@ DEFINE_SHOW_ATTRIBUTE(xive_core_debug);

		int xive_core_debug_init(void)
		{
		if (xive_enabled())
		debugfs_create_file("xive", 0400, powerpc_debugfs_root,
		NULL, &xive_core_debug_fops);
		return 0;