From: Helin Zhang Date: Wed, 17 Dec 2014 05:40:59 +0000 (+0800) Subject: i40e: fix build with some toolchains X-Git-Tag: spdx-start~9909 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8ae50a6ba9b8185a2377096b1600db284f259a11;p=dpdk.git i40e: fix build with some toolchains Compile warning which is treated as error occurs on Oracle Linux (kernel 2.6.39, gcc 4.4.7) as below, or RHEL, CentOS. Aliasing 'struct i40e_aqc_debug_reg_read_write' should be avoided. Use the elements inside that structure directly can fix the issue. lib/librte_pmd_i40e/i40e_ethdev.c: In function 'eth_i40e_dev_init': lib/librte_pmd_i40e/i40e_ethdev.c:5318: error: dereferencing pointer 'cmd' does break strict-aliasing rules lib/librte_pmd_i40e/i40e_ethdev.c:5314: note: initialized from here Signed-off-by: Helin Zhang --- diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c index 624f0ced01..b47a3d2944 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.c +++ b/lib/librte_pmd_i40e/i40e_ethdev.c @@ -5310,18 +5310,17 @@ static int i40e_debug_read_register(struct i40e_hw *hw, uint32_t addr, uint64_t *val) { struct i40e_aq_desc desc; - struct i40e_aqc_debug_reg_read_write *cmd = - (struct i40e_aqc_debug_reg_read_write *)&desc.params.raw; enum i40e_status_code status; i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_debug_read_reg); - cmd->address = rte_cpu_to_le_32(addr); + desc.params.internal.param1 = rte_cpu_to_le_32(addr); status = i40e_asq_send_command(hw, &desc, NULL, 0, NULL); if (status < 0) return status; - *val = ((uint64_t)(rte_le_to_cpu_32(cmd->value_high)) << (CHAR_BIT * - sizeof(uint32_t))) + rte_le_to_cpu_32(cmd->value_low); + *val = ((uint64_t)(rte_le_to_cpu_32(desc.params.internal.param2)) << + (CHAR_BIT * sizeof(uint32_t))) + + rte_le_to_cpu_32(desc.params.internal.param3); return status; }