From: Andrzej Ostruszka Date: Thu, 7 Nov 2019 15:03:14 +0000 (+0100) Subject: net/dpaa2: fix possible use of uninitialized vars X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=7bbc7dc431a66e81514219f1734ed263a3db3359;p=dpdk.git net/dpaa2: fix possible use of uninitialized vars This patch fixes 'maybe-uninitialized' warnings reported by compiler when using LTO. Compiler warning pointing to this error (with LTO enabled): error: ‘kg_cfg.extracts[0].masks[0].mask’ may be used uninitialized in this function [-Werror=maybe-uninitialized] extr->masks[j].mask = cfg->extracts[i].masks[j].mask; Fixes: 16bbc98a3e63 ("bus/fslmc: update MC to 10.3.x") Cc: stable@dpdk.org Signed-off-by: Andrzej Ostruszka --- diff --git a/drivers/net/dpaa2/base/dpaa2_hw_dpni.c b/drivers/net/dpaa2/base/dpaa2_hw_dpni.c index 16555d7b0b..47a8bda6aa 100644 --- a/drivers/net/dpaa2/base/dpaa2_hw_dpni.c +++ b/drivers/net/dpaa2/base/dpaa2_hw_dpni.c @@ -51,6 +51,7 @@ rte_pmd_dpaa2_set_custom_hash(uint16_t port_id, kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_DATA; kg_cfg.extracts[0].extract.from_data.offset = offset; kg_cfg.extracts[0].extract.from_data.size = size; + kg_cfg.extracts[0].num_of_byte_masks = 0; kg_cfg.num_extracts = 1; ret = dpkg_prepare_key_cfg(&kg_cfg, p_params); diff --git a/drivers/net/dpaa2/mc/dpkg.c b/drivers/net/dpaa2/mc/dpkg.c index 80f94f40ed..1e171eedc7 100644 --- a/drivers/net/dpaa2/mc/dpkg.c +++ b/drivers/net/dpaa2/mc/dpkg.c @@ -63,7 +63,10 @@ dpkg_prepare_key_cfg(const struct dpkg_profile_cfg *cfg, uint8_t *key_cfg_buf) dpkg_set_field(extr->extract_type, EXTRACT_TYPE, cfg->extracts[i].type); - for (j = 0; j < DPKG_NUM_OF_MASKS; j++) { + if (extr->num_of_byte_masks > DPKG_NUM_OF_MASKS) + return -EINVAL; + + for (j = 0; j < extr->num_of_byte_masks; j++) { extr->masks[j].mask = cfg->extracts[i].masks[j].mask; extr->masks[j].offset = cfg->extracts[i].masks[j].offset;