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s390/test_unwind: avoid build warning with W=1 

Fix the following build warning with W=1

arch/s390/lib/test_unwind.c:172:21: warning: variable 'fops' set but not used [-Wunused-but-set-variable]
        struct ftrace_ops *fops;

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Vasily Gorbik 2022-03-03 16:38:34 +01:00
parent df5a95f481
commit 6b1ca46ab3
1 changed files with 4 additions and 5 deletions
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9
arch/s390/lib/test_unwind.c
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@ -210,19 +210,18 @@ static noinline int test_unwind_ftraced_func(struct unwindme *u)
static int test_unwind_ftrace(struct unwindme *u)
{
struct ftrace_ops *fops;
int ret;
#ifdef CONFIG_DYNAMIC_FTRACE
struct ftrace_ops *fops;
#ifndef CONFIG_DYNAMIC_FTRACE
kunit_skip(current_test, "requires CONFIG_DYNAMIC_FTRACE");
fops = NULL; /* used */
#else
fops = kunit_kzalloc(current_test, sizeof(*fops), GFP_KERNEL);
fops->func = test_unwind_ftrace_handler;
fops->flags = FTRACE_OPS_FL_DYNAMIC |
FTRACE_OPS_FL_RECURSION |
FTRACE_OPS_FL_SAVE_REGS |
FTRACE_OPS_FL_PERMANENT;
#else
kunit_skip(current_test, "requires CONFIG_DYNAMIC_FTRACE");
#endif
ret = ftrace_set_filter_ip(fops, (unsigned long)test_unwind_ftraced_func, 0, 0);