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From: Subbaraya Sundeep <sbhatta@marvell.com>
To: <davem@davemloft.net>, <kuba@kernel.org>, <netdev@vger.kernel.org>
Cc: <hkelam@marvell.com>, <gakula@marvell.com>,
	<sgoutham@marvell.com>, Subbaraya Sundeep <sbhatta@marvell.com>
Subject: [net PATCH] octeontx2-af: Fix interrupt name strings
Date: Fri, 7 Jan 2022 12:25:05 +0530	[thread overview]
Message-ID: <1641538505-28367-1-git-send-email-sbhatta@marvell.com> (raw)

From: Sunil Goutham <sgoutham@marvell.com>

Fixed interrupt name string logic which currently results
in wrong memory location being accessed while dumping
/proc/interrupts.

Fixes: 4826090719d4 ("octeontx2-af: Enable CPT HW interrupts")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c     | 5 ++---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
index 45357de..a73a801 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
@@ -172,14 +172,13 @@ static int cpt_10k_register_interrupts(struct rvu_block *block, int off)
 {
 	struct rvu *rvu = block->rvu;
 	int blkaddr = block->addr;
-	char irq_name[16];
 	int i, ret;
 
 	for (i = CPT_10K_AF_INT_VEC_FLT0; i < CPT_10K_AF_INT_VEC_RVU; i++) {
-		snprintf(irq_name, sizeof(irq_name), "CPTAF FLT%d", i);
+		sprintf(&rvu->irq_name[(off + i) * NAME_SIZE], "CPTAF FLT%d", i);
 		ret = rvu_cpt_do_register_interrupt(block, off + i,
 						    rvu_cpt_af_flt_intr_handler,
-						    irq_name);
+						    &rvu->irq_name[(off + i) * NAME_SIZE]);
 		if (ret)
 			goto err;
 		rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT_ENA_W1S(i), 0x1);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
index 70bacd3..d0ab8f2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
@@ -41,7 +41,7 @@ static bool rvu_common_request_irq(struct rvu *rvu, int offset,
 	struct rvu_devlink *rvu_dl = rvu->rvu_dl;
 	int rc;
 
-	sprintf(&rvu->irq_name[offset * NAME_SIZE], name);
+	sprintf(&rvu->irq_name[offset * NAME_SIZE], "%s", name);
 	rc = request_irq(pci_irq_vector(rvu->pdev, offset), fn, 0,
 			 &rvu->irq_name[offset * NAME_SIZE], rvu_dl);
 	if (rc)
-- 
2.7.4


             reply	other threads:[~2022-01-07  6:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-07  6:55 Subbaraya Sundeep [this message]
2022-01-08  3:10 ` [net PATCH] octeontx2-af: Fix interrupt name strings patchwork-bot+netdevbpf

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