10:17 a.m.
Hi Jonathan,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on net/master]
[also build test WARNING on linus/master v5.8-rc1 next-20200618]
[cannot apply to char-misc/char-misc-testing net-next/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Jonathan-Lemon/netgpu-networking...
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
ef7232da6bcd4294cbb2d424bc35885721570f01
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
drivers/net/ethernet/mellanox/mlx5/core/en_main.c: In function 'mlx5e_alloc_rq':
drivers/net/ethernet/mellanox/mlx5/core/en_main.c:380:6: warning: unused variable
'num_xsk_frames' [-Wunused-variable]
380 | u32 num_xsk_frames = 0;
| ^~~~~~~~~~~~~~
In file included from include/linux/kernel.h:13,
from include/asm-generic/bug.h:19,
from arch/sparc/include/asm/bug.h:25,
from include/linux/bug.h:5,
from include/linux/refcount.h:96,
from include/net/act_api.h:9,
from include/net/tc_act/tc_gact.h:5,
from drivers/net/ethernet/mellanox/mlx5/core/en_main.c:33:
drivers/net/ethernet/mellanox/mlx5/core/en_main.c: In function
'mlx5e_build_rq_frags_info':
<< from drivers/net/ethernet/mellanox/mlx5/core/en_main.c:42:
> drivers/net/ethernet/mellanox/mlx5/core/en_main.c:2097:24:
warning: ?: using integer constants in boolean context [-Wint-in-bool-context]
2097
| PAGE_SIZE :
include/linux/log2.h:176:4: note: in definition of macro 'roundup_pow_of_two'
176 | (n == 1) ? 1 : | ^
vim +2097 drivers/net/ethernet/mellanox/mlx5/core/en_main.c
2060
2061 if (!hd_split && mlx5e_rx_is_linear_skb(params, xsk)) {
2062 int frag_stride;
2063
2064 frag_stride = mlx5e_rx_get_linear_frag_sz(params, xsk);
2065 frag_stride = roundup_pow_of_two(frag_stride);
2066
2067 info->arr[0].frag_size = byte_count;
2068 info->arr[0].frag_stride = frag_stride;
2069 info->num_frags = 1;
2070 info->wqe_bulk = PAGE_SIZE / frag_stride;
2071 goto out;
2072 }
2073
2074 if (byte_count > PAGE_SIZE +
2075 (MLX5E_MAX_RX_FRAGS - 1) * frag_size_max)
2076 frag_size_max = PAGE_SIZE;
2077
2078 i = 0;
2079
2080 if (hd_split) {
2081 // Start with one fragment for all headers (implementing HDS)
2082 info->arr[0].frag_size = TOTAL_HEADERS;
2083 info->arr[0].frag_stride = roundup_pow_of_two(PAGE_SIZE);
2084 buf_size += TOTAL_HEADERS;
2085 // Now, continue with the payload frags.
2086 i = 1;
2087 }
2088
2089 while (buf_size < byte_count) {
2090 int frag_size = byte_count - buf_size;
2091
2092 if (i < MLX5E_MAX_RX_FRAGS - 1)
2093 frag_size = min(frag_size, frag_size_max);
2094
2095 info->arr[i].frag_size = frag_size;
2096 info->arr[i].frag_stride = roundup_pow_of_two(hd_split ?
2097 PAGE_SIZE :
2098 frag_size);
2099 info->arr[i].frag_source = hd_split;
2100 buf_size += frag_size;
2101 i++;
2102 }
2103 info->num_frags = i;
2104 /* number of different wqes sharing a page */
2105 info->wqe_bulk = 1 + (info->num_frags % 2);
2106
2107 out:
2108 info->wqe_bulk = max_t(u8, info->wqe_bulk, 8);
2109 info->log_num_frags = order_base_2(info->num_frags);
2110 }
2111
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org