diff mbox series

[v2] selftests/gpio: Fix gpio compiling error

Message ID 20210903012236.160858-1-lizhijian@cn.fujitsu.com
State Superseded
Headers show
Series [v2] selftests/gpio: Fix gpio compiling error | expand

Commit Message

Li Zhijian Sept. 3, 2021, 1:22 a.m. UTC
[root@iaas-rpma gpio]# make
gcc     gpio-mockup-cdev.c  -o /home/lizhijian/linux/tools/testing/selftests/gpio/gpio-mockup-cdev
gpio-mockup-cdev.c: In function ‘request_line_v2’:
gpio-mockup-cdev.c:24:30: error: storage size of ‘req’ isn’t known
   24 |  struct gpio_v2_line_request req;
      |                              ^~~
gpio-mockup-cdev.c:32:14: error: ‘GPIO_V2_LINE_FLAG_OUTPUT’ undeclared (first use in this function); did you mean ‘GPIOLINE_FLAG_IS_OUT’?
   32 |  if (flags & GPIO_V2_LINE_FLAG_OUTPUT) {
      |              ^~~~~~~~~~~~~~~~~~~~~~~~

gpio-mockup-cdev.c includes <linux/gpio.h> which could be provided by
kernel-headers package, and where it's expected to declare
GPIO_V2_LINE_FLAG_OUTPUT. However distros or developers will not always
install the same kernel-header as we are compiling.

So we can tell compiler to search headers from linux tree simply like others,
such as sched.

CC: Philip Li <philip.li@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>

---
V2: add more details about the fix
---
 tools/testing/selftests/gpio/Makefile | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 39f2bbe8dd3d..42ea7d2aa844 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -3,5 +3,6 @@ 
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh
 TEST_GEN_PROGS_EXTENDED := gpio-mockup-cdev
+CFLAGS += -I../../../../usr/include
 
 include ../lib.mk