[kbuild-all] Re: [kbuild] [robh:for-next 7/57] arch/powerpc/kexec/elf_64.c:153 elf64_load() error: uninitialized symbol 'fdt'.

> tree: > https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git  for-next > head:   8d3a1cb32124eaeb3f2efe4889de214d3b658d8d > commit: 3c985d31ad661a2cc0ad0a55105046fc56a7b1fd [7/57] powerpc: Use > common of_kexec_alloc_and_setup_fdt() > config: powerpc-randconfig-m031-20210403 (attached as .config) > compiler: powerpc64-linux-gcc (GCC) 9.3.0 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp(a)intel.com&gt; > Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; > > smatch warnings: > arch/powerpc/kexec/elf_64.c:153 elf64_load() error: uninitialized > symbol 'fdt'. This is a good catch. Thanks for reporting it. > > vim +/fdt +153 arch/powerpc/kexec/elf_64.c >

> a0458284f0625a arch/powerpc/kernel/kexec_elf_64.c Thiago Jung > Bauermann 2016-11-29   30              unsigned long cmdline_len) > a0458284f0625a arch/powerpc/kernel/kexec_elf_64.c Thiago Jung > Bauermann 2016-11-29   31  { > a0458284f0625a arch/powerpc/kernel/kexec_elf_64.c Thiago Jung > Bauermann 2016-11-29   32      int ret; > 3be3f61d25e04e arch/powerpc/kernel/kexec_elf_64.c Philipp > Rudo          2018-04-13   33      unsigned long kernel_load_addr; > a0458284f0625a arch/powerpc/kernel/kexec_elf_64.c Thiago Jung > Bauermann 2016-11-29   34      unsigned long initrd_load_addr = 0, > fdt_load_addr; > a0458284f0625a arch/powerpc/kernel/kexec_elf_64.c Thiago Jung > Bauermann 2016-11-29   35      void *fdt; Initialize "fdt" to NULL here. Rob - Please let me know which branch I should use to base the fix. I will post the patch shortly.