Hi Mina, kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Mina-Almasry/net-page_pool-factor-out-releasing-DMA-from-releasing-the-page/20231208-085531 base: net-next/main patch link: https://lore.kernel.org/r/20231208005250.2910004-7-almasrymina%40google.com patch subject: [net-next v1 06/16] netdev: support binding dma-buf to netdevice config: m68k-randconfig-r071-20231208 (https://download.01.org/0day-ci/archive/20231208/202312082303.bcpecr0q-...@intel.com/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231208/202312082303.bcpecr0q-...@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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202312082303.bcpecr0q-...@intel.com/ All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:22, from arch/m68k/include/asm/bug.h:32, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/preempt.h:5, from ./arch/m68k/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from arch/m68k/include/asm/irqflags.h:6, from include/linux/irqflags.h:17, from arch/m68k/include/asm/atomic.h:6, from include/linux/atomic.h:7, from include/linux/rcupdate.h:25, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from include/linux/uaccess.h:8, from net/core/dev.c:71: net/core/dev.c: In function '__netdev_dmabuf_binding_free': >> net/core/dev.c:2071:34: warning: format '%lu' expects argument of type 'long >> unsigned int', but argument 2 has type 'size_t' {aka 'unsigned int'} >> [-Wformat=] 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2072 | size, avail)) | ~~~~ | | | size_t {aka unsigned int} include/linux/printk.h:427:25: note: in definition of macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~ include/linux/printk.h:129:17: note: in expansion of macro 'printk' 129 | printk(fmt, ##__VA_ARGS__); \ | ^~~~~~ include/asm-generic/bug.h:176:9: note: in expansion of macro 'no_printk' 176 | no_printk(format); \ | ^~~~~~~~~ net/core/dev.c:2071:14: note: in expansion of macro 'WARN' 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ^~~~ net/core/dev.c:2071:65: note: format string is defined here 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ~~^ | | | long unsigned int | %u net/core/dev.c:2071:34: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2072 | size, avail)) | ~~~~~ | | | size_t {aka unsigned int} include/linux/printk.h:427:25: note: in definition of macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~ include/linux/printk.h:129:17: note: in expansion of macro 'printk' 129 | printk(fmt, ##__VA_ARGS__); \ | ^~~~~~ include/asm-generic/bug.h:176:9: note: in expansion of macro 'no_printk' 176 | no_printk(format); \ | ^~~~~~~~~ net/core/dev.c:2071:14: note: in expansion of macro 'WARN' 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ^~~~ net/core/dev.c:2071:76: note: format string is defined here 2071 | if (!WARN(size != avail, "can't destroy genpool. size=%lu, avail=%lu", | ~~^ | | | long unsigned int | %u vim +2071 net/core/dev.c 2060 2061 void __netdev_dmabuf_binding_free(struct netdev_dmabuf_binding *binding) 2062 { 2063 size_t size, avail; 2064 2065 gen_pool_for_each_chunk(binding->chunk_pool, 2066 netdev_dmabuf_free_chunk_owner, NULL); 2067 2068 size = gen_pool_size(binding->chunk_pool); 2069 avail = gen_pool_avail(binding->chunk_pool); 2070 > 2071 if (!WARN(size != avail, "can't destroy genpool. size=%lu, > avail=%lu", 2072 size, avail)) 2073 gen_pool_destroy(binding->chunk_pool); 2074 2075 dma_buf_unmap_attachment(binding->attachment, binding->sgt, 2076 DMA_BIDIRECTIONAL); 2077 dma_buf_detach(binding->dmabuf, binding->attachment); 2078 dma_buf_put(binding->dmabuf); 2079 xa_destroy(&binding->bound_rxq_list); 2080 kfree(binding); 2081 } 2082 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
