[PATCH v2 3/3] pinctrl: th1520: Convert dt child node loop to scoped iterator
Drew Fustini
dfustini at tenstorrent.com
Mon Oct 7 11:03:54 PDT 2024
On Mon, Oct 07, 2024 at 08:26:28PM +0800, kernel test robot wrote:
> Hi Drew,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on 2694868880705e8f6bb61b24b1b25adc42a4a217]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Drew-Fustini/pinctrl-th1520-Fix-return-value-for-unknown-pin-error/20241007-014953
> base: 2694868880705e8f6bb61b24b1b25adc42a4a217
> patch link: https://lore.kernel.org/r/20241006-th1520-pinctrl-fixes-v2-3-b1822ae3a6d7%40tenstorrent.com
> patch subject: [PATCH v2 3/3] pinctrl: th1520: Convert dt child node loop to scoped iterator
> config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20241007/202410072033.XpRqZ8nz-lkp@intel.com/config)
> compiler: alpha-linux-gcc (GCC) 13.3.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241007/202410072033.XpRqZ8nz-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp at intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202410072033.XpRqZ8nz-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> drivers/pinctrl/pinctrl-th1520.c: In function 'th1520_pinctrl_dt_node_to_map':
> >> drivers/pinctrl/pinctrl-th1520.c:420:29: warning: unused variable 'child' [-Wunused-variable]
> 420 | struct device_node *child;
> | ^~~~~
It seems this is because the scoped iterator declares *child in the
macro and thus no separate declaration is needed:
#define for_each_available_child_of_node_scoped(parent, child) \
for (struct device_node *child __free(device_node) = \
of_get_next_available_child(parent, NULL); \
child != NULL; \
child = of_get_next_available_child(parent, child))
I'll fix in next revision.
Thanks,
Drew
More information about the linux-riscv
mailing list