Messages in this thread | | | Date | Thu, 17 May 2018 15:10:46 +0800 | From | kbuild test robot <> | Subject | drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4205:3: note: in expansion of macro 'xchg' |
| |
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e6506eb241871d68647c53cb6d0a16299550ae97 commit: c7aec59657b60f3a29fc7d3274ebefd698879301 ixgbevf: Add XDP support for pass and drop actions date: 8 weeks ago config: sparc-allyesconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout c7aec59657b60f3a29fc7d3274ebefd698879301 # save the attached .config to linux build tree make.cross ARCH=sparc
All warnings (new ones prefixed by >>):
In file included from arch/sparc/include/asm/cmpxchg.h:5:0, from arch/sparc/include/asm/atomic_64.h:12, from arch/sparc/include/asm/atomic.h:5, from include/linux/atomic.h:5, from include/asm-generic/qspinlock_types.h:28, from arch/sparc/include/asm/spinlock_types.h:6, from include/linux/spinlock_types.h:13, from include/linux/spinlock.h:82, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:35: drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup': arch/sparc/include/asm/cmpxchg_64.h:55:22: warning: value computed is not used [-Wunused-value] #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4205:3: note: in expansion of macro 'xchg' xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog); ^~~~
vim +/xchg +4205 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
4188 4189 static int ixgbevf_xdp_setup(struct net_device *dev, struct bpf_prog *prog) 4190 { 4191 int i, frame_size = dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; 4192 struct ixgbevf_adapter *adapter = netdev_priv(dev); 4193 struct bpf_prog *old_prog; 4194 4195 /* verify ixgbevf ring attributes are sufficient for XDP */ 4196 for (i = 0; i < adapter->num_rx_queues; i++) { 4197 struct ixgbevf_ring *ring = adapter->rx_ring[i]; 4198 4199 if (frame_size > ixgbevf_rx_bufsz(ring)) 4200 return -EINVAL; 4201 } 4202 4203 old_prog = xchg(&adapter->xdp_prog, prog); 4204 for (i = 0; i < adapter->num_rx_queues; i++) > 4205 xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog); 4206 4207 if (old_prog) 4208 bpf_prog_put(old_prog); 4209 4210 return 0; 4211 } 4212
--- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation [unhandled content-type:application/gzip] | |