As reported by the kernel test robot, the following error occurs:
arch/parisc/kernel/pdt.c:65:6: warning: no previous prototype for 'arch_report_meminfo' [-Wmissing-prototypes]
65 | void arch_report_meminfo(struct seq_file *m)
| ^~~~~~~~~~~~~~~~~~~
arch_report_meminfo() is declared in include/linux/proc_fs.h and only
defined when CONFIG_PROC_FS is enabled. Wrap its definition in #ifdef
CONFIG_PROC_FS to fix the -Wmissing-prototypes warning.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202502082315.IPaHaTyM-lkp@xxxxxxxxx/
Signed-off-by: Yu-Chun Lin <eleanor15x@xxxxxxxxx>