[rppt-memblock:memblock_free-cleanup/v0 3/3] arch/um/kernel/mem.c:50:16: warning: passing argument 1 of 'memblock_free' makes pointer from integer without a cast

kernel test robot
2021-09-17T23:20:23Z

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tree: git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git memblock_free-cleanup/v0
head: 78a79c62f5f7e1099880e2d6caa2759747bcfded
commit: 78a79c62f5f7e1099880e2d6caa2759747bcfded [3/3] memblock: cleanup memblock_free interface
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git/commit/?id=78a79c62f5f7e1099880e2d6caa2759747bcfded
git remote add rppt-memblock git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git
git fetch --no-tags rppt-memblock memblock_free-cleanup/v0
git checkout 78a79c62f5f7e1099880e2d6caa2759747bcfded
# save the attached .config to linux build tree
make W=1 ARCH=um SUBARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

arch/um/kernel/mem.c: In function 'mem_init':
>> arch/um/kernel/mem.c:50:16: warning: passing argument 1 of 'memblock_free' makes pointer from integer without a cast [-Wint-conversion]
50 | memblock_free(brk_end, uml_reserved - brk_end);
| ^~~~~~~
| |
| long unsigned int
In file included from arch/um/kernel/mem.c:8:
include/linux/memblock.h:120:26: note: expected 'void *' but argument is of type 'long unsigned int'
120 | void memblock_free(void *ptr, size_t size);
| ~~~~~~^~~
arch/um/kernel/mem.c: At top level:
arch/um/kernel/mem.c:184:8: warning: no previous prototype for 'pgd_alloc' [-Wmissing-prototypes]
184 | pgd_t *pgd_alloc(struct mm_struct *mm)
| ^~~~~~~~~
arch/um/kernel/mem.c:197:7: warning: no previous prototype for 'uml_kmalloc' [-Wmissing-prototypes]
197 | void *uml_kmalloc(int size, int flags)
| ^~~~~~~~~~~
--
>> mm/memblock.c:821: warning: expecting prototype for memblock_free_phys(). Prototype was for memblock_phys_free() instead

vim +/memblock_free +50 arch/um/kernel/mem.c

39
40 void __init mem_init(void)
41 {
42 /* clear the zero-page */
43 memset(empty_zero_page, 0, PAGE_SIZE);
44
45 /* Map in the area just after the brk now that kmalloc is about
46 * to be turned on.
47 */
48 brk_end = (unsigned long) UML_ROUND_UP(sbrk(0));
49 map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0);
> 50 memblock_free(brk_end, uml_reserved - brk_end);
51 uml_reserved = brk_end;
52
53 /* this will put all low memory onto the freelists */
54 memblock_free_all();
55 max_low_pfn = totalram_pages();
56 max_pfn = max_low_pfn;
57 kmalloc_ok = 1;
58 }
59

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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