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Date: Wed, 31 Jan 2024 08:11:18 +0530 Message-ID: <20240131024118.254758-1-rkannoth@marvell.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-ORIG-GUID: _yekNxsZxU1Br4UnRXM_74qZkIY35-l2 X-Proofpoint-GUID: _yekNxsZxU1Br4UnRXM_74qZkIY35-l2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-30_14,2024-01-30_01,2023-05-22_02 kmalloc_array() without __GFP_ZERO flag does not initialize memory to zero. This causes issues. Use __GFP_ZERO flag for maps and bitmap_zalloc() for bimaps. Fixes: dd7842878633 ("octeontx2-af: Add new devlink param to configure maximum usable NIX block LFs") Signed-off-by: Ratheesh Kannoth --- ChangeLogs: v2 -> v3: Used GFP_ZERO for normal map arrays v1 -> v2: Used bitmap_zalloc() API. v0 -> v1: Removed devm_kcalloc()._ --- .../ethernet/marvell/octeontx2/af/rvu_npc.c | 26 ++++++++++--------- 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index 167145bdcb75..6a8f0efd96a5 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -1850,8 +1850,8 @@ void npc_mcam_rsrcs_deinit(struct rvu *rvu) { struct npc_mcam *mcam = &rvu->hw->mcam; - kfree(mcam->bmap); - kfree(mcam->bmap_reverse); + bitmap_free(mcam->bmap); + bitmap_free(mcam->bmap_reverse); kfree(mcam->entry2pfvf_map); kfree(mcam->cntr2pfvf_map); kfree(mcam->entry2cntr_map); @@ -1904,13 +1904,11 @@ int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) mcam->pf_offset = mcam->nixlf_offset + nixlf_count; /* Allocate bitmaps for managing MCAM entries */ - mcam->bmap = kmalloc_array(BITS_TO_LONGS(mcam->bmap_entries), - sizeof(long), GFP_KERNEL); + mcam->bmap = bitmap_zalloc(mcam->bmap_entries, GFP_KERNEL); if (!mcam->bmap) return -ENOMEM; - mcam->bmap_reverse = kmalloc_array(BITS_TO_LONGS(mcam->bmap_entries), - sizeof(long), GFP_KERNEL); + mcam->bmap_reverse = bitmap_zalloc(mcam->bmap_entries, GFP_KERNEL); if (!mcam->bmap_reverse) goto free_bmap; @@ -1918,7 +1916,8 @@ int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) /* Alloc memory for saving entry to RVU PFFUNC allocation mapping */ mcam->entry2pfvf_map = kmalloc_array(mcam->bmap_entries, - sizeof(u16), GFP_KERNEL); + sizeof(u16), + GFP_KERNEL | __GFP_ZERO); if (!mcam->entry2pfvf_map) goto free_bmap_reverse; @@ -1942,7 +1941,8 @@ int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) goto free_entry_map; mcam->cntr2pfvf_map = kmalloc_array(mcam->counters.max, - sizeof(u16), GFP_KERNEL); + sizeof(u16), + GFP_KERNEL | __GFP_ZERO); if (!mcam->cntr2pfvf_map) goto free_cntr_bmap; @@ -1950,12 +1950,14 @@ int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) * counter's reference count. */ mcam->entry2cntr_map = kmalloc_array(mcam->bmap_entries, - sizeof(u16), GFP_KERNEL); + sizeof(u16), + GFP_KERNEL | __GFP_ZERO); if (!mcam->entry2cntr_map) goto free_cntr_map; mcam->cntr_refcnt = kmalloc_array(mcam->counters.max, - sizeof(u16), GFP_KERNEL); + sizeof(u16), + GFP_KERNEL | __GFP_ZERO); if (!mcam->cntr_refcnt) goto free_entry_cntr_map; @@ -1988,9 +1990,9 @@ int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) free_entry_map: kfree(mcam->entry2pfvf_map); free_bmap_reverse: - kfree(mcam->bmap_reverse); + bitmap_free(mcam->bmap_reverse); free_bmap: - kfree(mcam->bmap); + bitmap_free(mcam->bmap); return -ENOMEM; } -- 2.25.1