Hi Sebastian, kernel test robot noticed the following build warnings: [auto build test WARNING on bluetooth-next/master] [also build test WARNING on linus/master v6.9-rc6 next-20240430] [cannot apply to bluetooth/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sebastian-Urban/Bluetooth-compute-LE-flow-credits-based-on-recvbuf-space/20240501-075548 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master patch link: https://lore.kernel.org/r/20240430235122.37716-1-surban%40surban.net patch subject: [PATCH v6] Bluetooth: compute LE flow credits based on recvbuf space config: openrisc-allmodconfig (https://download.01.org/0day-ci/archive/20240501/202405011748.NWhismdZ-lkp@xxxxxxxxx/config) compiler: or1k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240501/202405011748.NWhismdZ-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405011748.NWhismdZ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:22, from arch/openrisc/include/asm/bug.h:5, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/preempt.h:5, from ./arch/openrisc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:17, from net/bluetooth/l2cap_core.c:31: net/bluetooth/l2cap_core.c: In function 'l2cap_chan_rx_avail': >> net/bluetooth/l2cap_core.c:6570:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'ssize_t' {aka 'int'} [-Wformat=] 6570 | BT_DBG("chan %p has %ld bytes avail for rx", chan, rx_avail); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/printk.h:347:21: note: in definition of macro 'pr_fmt' 347 | #define pr_fmt(fmt) fmt | ^~~ include/linux/dynamic_debug.h:248:9: note: in expansion of macro '__dynamic_func_call_cls' 248 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:250:9: note: in expansion of macro '_dynamic_func_call_cls' 250 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:269:9: note: in expansion of macro '_dynamic_func_call' 269 | _dynamic_func_call(fmt, __dynamic_pr_debug, \ | ^~~~~~~~~~~~~~~~~~ include/linux/printk.h:581:9: note: in expansion of macro 'dynamic_pr_debug' 581 | dynamic_pr_debug(fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~ include/net/bluetooth/bluetooth.h:271:33: note: in expansion of macro 'pr_debug' 271 | #define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__) | ^~~~~~~~ net/bluetooth/l2cap_core.c:6570:9: note: in expansion of macro 'BT_DBG' 6570 | BT_DBG("chan %p has %ld bytes avail for rx", chan, rx_avail); | ^~~~~~ net/bluetooth/l2cap_core.c:6570:31: note: format string is defined here 6570 | BT_DBG("chan %p has %ld bytes avail for rx", chan, rx_avail); | ~~^ | | | long int | %d vim +6570 net/bluetooth/l2cap_core.c 6564 6565 void l2cap_chan_rx_avail(struct l2cap_chan *chan, ssize_t rx_avail) 6566 { 6567 if (chan->rx_avail == rx_avail) 6568 return; 6569 > 6570 BT_DBG("chan %p has %ld bytes avail for rx", chan, rx_avail); 6571 6572 chan->rx_avail = rx_avail; 6573 6574 if (chan->state == BT_CONNECTED) 6575 l2cap_chan_le_send_credits(chan); 6576 } 6577 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki