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authorArnd Bergmann <arnd@arndb.de>2021-11-08 12:14:02 +0100
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2021-11-08 10:40:17 -0600
commit501586ea5974a9dafee41f54a66326addb01a5ac (patch)
treee6884bbbab38a6290857b25249deec4a1ca8072d /drivers/xen
parent121f2faca2c0a1b3af5581213c04817b3f3ceeb9 (diff)
xen/balloon: fix unused-variable warning
In configurations with CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=n and CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y, gcc warns about an unused variable: drivers/xen/balloon.c:83:12: error: 'xen_hotplug_unpopulated' defined but not used [-Werror=unused-variable] Since this is always zero when CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is disabled, turn it into a preprocessor constant in that case. Fixes: 121f2faca2c0 ("xen/balloon: rename alloc/free_xenballooned_pages") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20211108111408.3940366-1-arnd@kernel.org Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/balloon.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index ad9ba1e97450..ba2ea11e0d3d 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -80,9 +80,8 @@
static uint __read_mostly balloon_boot_timeout = 180;
module_param(balloon_boot_timeout, uint, 0444);
-static int xen_hotplug_unpopulated;
-
#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
+static int xen_hotplug_unpopulated;
static struct ctl_table balloon_table[] = {
{
@@ -115,6 +114,8 @@ static struct ctl_table xen_root[] = {
{ }
};
+#else
+#define xen_hotplug_unpopulated 0
#endif
/*