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Message-ID:
<CO1PR18MB466675E232FA99415D766F68A1362@CO1PR18MB4666.namprd18.prod.outlook.com>
Date: Mon, 25 Mar 2024 12:44:44 +0000
From: Subbaraya Sundeep Bhatta <sbhatta@...vell.com>
To: Su Hui <suhui@...china.com>, Sunil Kovvuri Goutham <sgoutham@...vell.com>,
Geethasowjanya Akula <gakula@...vell.com>,
Hariprasad Kelam
<hkelam@...vell.com>,
"davem@...emloft.net" <davem@...emloft.net>,
"edumazet@...gle.com" <edumazet@...gle.com>,
"kuba@...nel.org"
<kuba@...nel.org>,
"pabeni@...hat.com" <pabeni@...hat.com>,
"nathan@...nel.org" <nathan@...nel.org>,
"ndesaulniers@...gle.com"
<ndesaulniers@...gle.com>,
"morbo@...gle.com" <morbo@...gle.com>,
"justinstitt@...gle.com" <justinstitt@...gle.com>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"llvm@...ts.linux.dev" <llvm@...ts.linux.dev>,
"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: RE: [EXTERNAL] [PATCH 2/2] octeontx2-pf: remove unused variables
req_hdr and rsp_hdr
Hi,
>-----Original Message-----
>From: Su Hui <suhui@...china.com>
>Sent: Monday, March 25, 2024 1:06 PM
>To: Sunil Kovvuri Goutham <sgoutham@...vell.com>; Geethasowjanya Akula
><gakula@...vell.com>; Subbaraya Sundeep Bhatta <sbhatta@...vell.com>;
>Hariprasad Kelam <hkelam@...vell.com>; davem@...emloft.net;
>edumazet@...gle.com; kuba@...nel.org; pabeni@...hat.com;
>nathan@...nel.org; ndesaulniers@...gle.com; morbo@...gle.com;
>justinstitt@...gle.com
>Cc: Su Hui <suhui@...china.com>; netdev@...r.kernel.org; linux-
>kernel@...r.kernel.org; llvm@...ts.linux.dev; kernel-janitors@...r.kernel.org
>Subject: [PATCH 2/2] octeontx2-pf: remove unused variables
>req_hdr and rsp_hdr
>
>Clang static checker(scan-buid):
>drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c:503:2: warning:
>Value stored to 'rsp_hdr' is never read [deadcode.DeadStores]
>
Consider this also as a fix and add Fixes tag. Also please add "net" in subject to
easily identify whether this patch as net or net-next material.
Thanks,
Sundeep
>Remove these unused variables to save some space.
>
>Signed-off-by: Su Hui <suhui@...china.com>
>---
> drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
>diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
>b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
>index 3f46d5e0fb2e..637b05c79c42 100644
>--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
>+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
>@@ -450,7 +450,6 @@ static void otx2_pfvf_mbox_handler(struct
>work_struct *work)
> struct mbox_msghdr *msg = NULL;
> int offset, vf_idx, id, err;
> struct otx2_mbox_dev *mdev;
>- struct mbox_hdr *req_hdr;
> struct otx2_mbox *mbox;
> struct mbox *vf_mbox;
> struct otx2_nic *pf;
>@@ -461,9 +460,8 @@ static void otx2_pfvf_mbox_handler(struct
>work_struct *work)
>
> mbox = &pf->mbox_pfvf[0].mbox;
> mdev = &mbox->dev[vf_idx];
>- req_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
>
>- offset = ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
>+ offset = ALIGN(sizeof(struct mbox_hdr), MBOX_MSG_ALIGN);
>
> for (id = 0; id < vf_mbox->num_msgs; id++) {
> msg = (struct mbox_msghdr *)(mdev->mbase + mbox->rx_start
>+
>@@ -494,7 +492,6 @@ static void otx2_pfvf_mbox_up_handler(struct
>work_struct *work)
> struct otx2_nic *pf = vf_mbox->pfvf;
> struct otx2_mbox_dev *mdev;
> int offset, id, vf_idx = 0;
>- struct mbox_hdr *rsp_hdr;
> struct mbox_msghdr *msg;
> struct otx2_mbox *mbox;
>
>@@ -502,8 +499,7 @@ static void otx2_pfvf_mbox_up_handler(struct
>work_struct *work)
> mbox = &pf->mbox_pfvf[0].mbox_up;
> mdev = &mbox->dev[vf_idx];
>
>- rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
>- offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr),
>MBOX_MSG_ALIGN);
>+ offset = mbox->rx_start + ALIGN(sizeof(struct mbox_hdr),
>MBOX_MSG_ALIGN);
>
> for (id = 0; id < vf_mbox->up_num_msgs; id++) {
> msg = mdev->mbase + offset;
>--
>2.30.2
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