Hi Michal, [auto build test WARNING on net-next/master] [also build test WARNING on v4.12-rc3 next-20170602] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Michal-Hocko/amd-xgbe-use-PAGE_ALLOC_COSTLY_ORDER-in-xgbe_map_rx_buffer/20170603-021038 config: x86_64-randconfig-v0-06030836 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/net//ethernet/amd/xgbe/xgbe-desc.c: In function 'xgbe_map_rx_buffer': >> drivers/net//ethernet/amd/xgbe/xgbe-desc.c:327: warning: unused variable 'order' vim +/order +327 drivers/net//ethernet/amd/xgbe/xgbe-desc.c 174fd259 Lendacky, Thomas 2014-11-04 311 if ((pa->pages_offset + len) > pa->pages_len) { 08dcc47c Lendacky, Thomas 2014-11-04 312 /* This data descriptor is responsible for unmapping page(s) */ 174fd259 Lendacky, Thomas 2014-11-04 313 bd->pa_unmap = *pa; 08dcc47c Lendacky, Thomas 2014-11-04 314 08dcc47c Lendacky, Thomas 2014-11-04 315 /* Get a new allocation next time */ 174fd259 Lendacky, Thomas 2014-11-04 316 pa->pages = NULL; 174fd259 Lendacky, Thomas 2014-11-04 317 pa->pages_len = 0; 174fd259 Lendacky, Thomas 2014-11-04 318 pa->pages_offset = 0; 174fd259 Lendacky, Thomas 2014-11-04 319 pa->pages_dma = 0; 174fd259 Lendacky, Thomas 2014-11-04 320 } 174fd259 Lendacky, Thomas 2014-11-04 321 } 174fd259 Lendacky, Thomas 2014-11-04 322 174fd259 Lendacky, Thomas 2014-11-04 323 static int xgbe_map_rx_buffer(struct xgbe_prv_data *pdata, 174fd259 Lendacky, Thomas 2014-11-04 324 struct xgbe_ring *ring, 174fd259 Lendacky, Thomas 2014-11-04 325 struct xgbe_ring_data *rdata) 174fd259 Lendacky, Thomas 2014-11-04 326 { 174fd259 Lendacky, Thomas 2014-11-04 @327 int order, ret; 174fd259 Lendacky, Thomas 2014-11-04 328 174fd259 Lendacky, Thomas 2014-11-04 329 if (!ring->rx_hdr_pa.pages) { 174fd259 Lendacky, Thomas 2014-11-04 330 ret = xgbe_alloc_pages(pdata, &ring->rx_hdr_pa, GFP_ATOMIC, 0); 174fd259 Lendacky, Thomas 2014-11-04 331 if (ret) 174fd259 Lendacky, Thomas 2014-11-04 332 return ret; 08dcc47c Lendacky, Thomas 2014-11-04 333 } 08dcc47c Lendacky, Thomas 2014-11-04 334 174fd259 Lendacky, Thomas 2014-11-04 335 if (!ring->rx_buf_pa.pages) { :::::: The code at line 327 was first introduced by commit :::::: 174fd2597b0bd8c19fce6a97e8b0f753ef4ce7cb amd-xgbe: Implement split header receive support :::::: TO: Lendacky, Thomas <Thomas.Lendacky@xxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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