diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-11-08 12:14:02 +0100 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2021-11-08 10:40:17 -0600 |
| commit | 501586ea5974a9dafee41f54a66326addb01a5ac (patch) | |
| tree | e6884bbbab38a6290857b25249deec4a1ca8072d /drivers/xen | |
| parent | 121f2faca2c0a1b3af5581213c04817b3f3ceeb9 (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.c | 5 |
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 /* |