[mmotm:master 293/305] arch/x86/platform/olpc/olpc_dt.c:145:36: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'const unsigned int'}

[kbuild test robot <lkp@intel.com>]

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tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   a4186de8d65ec2ca6c39070ef1d6795a0b4ffe04
commit: 143cfc886d8275787a78aca1b2aa6053a1f00d3c [293/305] treewide: add checks for the return value of memblock_alloc*()
config: i386-allmodconfig (attached as .config)
compiler: gcc-8 (Debian 8.2.0-14) 8.2.0
reproduce:
        git checkout 143cfc886d8275787a78aca1b2aa6053a1f00d3c
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   arch/x86/platform/olpc/olpc_dt.c: In function 'prom_early_alloc':
>> arch/x86/platform/olpc/olpc_dt.c:145:36: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'const unsigned int'} [-Wformat=]
       panic("%s: Failed to allocate %lu bytes\n", __func__,
                                     ~~^
                                     %u
             chunk_size);
             ~~~~~~~~~~                 

vim +145 arch/x86/platform/olpc/olpc_dt.c

   127	
   128	void * __init prom_early_alloc(unsigned long size)
   129	{
   130		static u8 *mem;
   131		static size_t free_mem;
   132		void *res;
   133	
   134		if (free_mem < size) {
   135			const size_t chunk_size = max(PAGE_SIZE, size);
   136	
   137			/*
   138			 * To mimimize the number of allocations, grab at least
   139			 * PAGE_SIZE of memory (that's an arbitrary choice that's
   140			 * fast enough on the platforms we care about while minimizing
   141			 * wasted bootmem) and hand off chunks of it to callers.
   142			 */
   143			res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
   144			if (!res)
 > 145				panic("%s: Failed to allocate %lu bytes\n", __func__,
   146				      chunk_size);
   147			BUG_ON(!res);
   148			prom_early_allocated += chunk_size;
   149			memset(res, 0, chunk_size);
   150			free_mem = chunk_size;
   151			mem = res;
   152		}
   153	
   154		/* allocate from the local cache */
   155		free_mem -= size;
   156		res = mem;
   157		mem += size;
   158		return res;
   159	}
   160	

---
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