From: Sunil Goutham <sgoutham@marvell.com>
Date: Fri, 7 Jan 2022 12:25:05 +0530
Subject: octeontx2-af: Fix interrupt name strings
Patch-mainline: v5.17-rc1
Git-commit: 6dc9a23e29061e50c36523270de60039ccf536fa
References: jsc#SLE-24682

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>
Link: https://lore.kernel.org/r/1641538505-28367-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 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(-)

--- 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(s
 {
 	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);
--- 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(struc
 	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)