Messages in this thread | | | Date | Tue, 13 Sep 2022 12:13:24 +0300 | From | Dan Carpenter <> | Subject | Re: [PATCH net-next v5 1/9] net: marvell: prestera: Add router nexthops ABI |
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Hi Yevhen,
url: https://github.com/intel-lab-lkp/linux/commits/Yevhen-Orlov/net-marvell-prestera-add-nexthop-routes-offloading/20220909-065815 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 9f8f1933dce555d3c246f447f54fca8de8889da9 config: openrisc-randconfig-m041-20220907 (https://download.01.org/0day-ci/archive/20220911/202209111152.gf5xyKKy-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings: drivers/net/ethernet/marvell/prestera/prestera_hw.c:2139 prestera_hw_nhgrp_blk_get() error: uninitialized symbol 'err'.
vim +/err +2139 drivers/net/ethernet/marvell/prestera/prestera_hw.c
ec3daf86e28107 Yevhen Orlov 2022-09-09 2110 int prestera_hw_nhgrp_blk_get(struct prestera_switch *sw, ec3daf86e28107 Yevhen Orlov 2022-09-09 2111 u8 *hw_state, u32 buf_size /* Buffer in bytes */) ec3daf86e28107 Yevhen Orlov 2022-09-09 2112 { ec3daf86e28107 Yevhen Orlov 2022-09-09 2113 struct prestera_msg_nh_chunk_req req; ec3daf86e28107 Yevhen Orlov 2022-09-09 2114 static struct prestera_msg_nh_chunk_resp resp; ec3daf86e28107 Yevhen Orlov 2022-09-09 2115 int err; ec3daf86e28107 Yevhen Orlov 2022-09-09 2116 u32 buf_offset; ec3daf86e28107 Yevhen Orlov 2022-09-09 2117 ec3daf86e28107 Yevhen Orlov 2022-09-09 2118 memset(&hw_state[0], 0, buf_size); ec3daf86e28107 Yevhen Orlov 2022-09-09 2119 buf_offset = 0; ec3daf86e28107 Yevhen Orlov 2022-09-09 2120 while (1) { ec3daf86e28107 Yevhen Orlov 2022-09-09 2121 if (buf_offset >= buf_size) ec3daf86e28107 Yevhen Orlov 2022-09-09 2122 break;
Smatch always worries about zero sizes...
ec3daf86e28107 Yevhen Orlov 2022-09-09 2123 ec3daf86e28107 Yevhen Orlov 2022-09-09 2124 memset(&req, 0, sizeof(req)); ec3daf86e28107 Yevhen Orlov 2022-09-09 2125 req.offset = __cpu_to_le32(buf_offset * 8); /* 8 bits in u8 */ ec3daf86e28107 Yevhen Orlov 2022-09-09 2126 err = prestera_cmd_ret(sw, ec3daf86e28107 Yevhen Orlov 2022-09-09 2127 PRESTERA_CMD_TYPE_ROUTER_NH_GRP_BLK_GET, ec3daf86e28107 Yevhen Orlov 2022-09-09 2128 &req.cmd, sizeof(req), &resp.ret, ec3daf86e28107 Yevhen Orlov 2022-09-09 2129 sizeof(resp)); ec3daf86e28107 Yevhen Orlov 2022-09-09 2130 if (err) ec3daf86e28107 Yevhen Orlov 2022-09-09 2131 return err; ec3daf86e28107 Yevhen Orlov 2022-09-09 2132 ec3daf86e28107 Yevhen Orlov 2022-09-09 2133 memcpy(&hw_state[buf_offset], &resp.hw_state[0], ec3daf86e28107 Yevhen Orlov 2022-09-09 2134 buf_offset + PRESTERA_MSG_CHUNK_SIZE > buf_size ? ec3daf86e28107 Yevhen Orlov 2022-09-09 2135 buf_size - buf_offset : PRESTERA_MSG_CHUNK_SIZE); ec3daf86e28107 Yevhen Orlov 2022-09-09 2136 buf_offset += PRESTERA_MSG_CHUNK_SIZE; ec3daf86e28107 Yevhen Orlov 2022-09-09 2137 } ec3daf86e28107 Yevhen Orlov 2022-09-09 2138 ec3daf86e28107 Yevhen Orlov 2022-09-09 @2139 return err; ec3daf86e28107 Yevhen Orlov 2022-09-09 2140 }
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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