Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Mon, 1 Mar 2021 20:45:50 +0100
From:   Marc Kleine-Budde <mkl@pengutronix.de>
To:     Dario Binacchi <dariobin@libero.it>
Cc:     linux-kernel@vger.kernel.org,
        Federico Vaga <federico.vaga@gmail.com>,
        Alexander Stein <alexander.stein@systec-electronic.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Oliver Hartkopp <socketcan@hartkopp.net>,
        Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
        Wolfgang Grandegger <wg@grandegger.com>,
        YueHaibing <yuehaibing@huawei.com>,
        Zhang Qilong <zhangqilong3@huawei.com>,
        linux-can@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v3 5/6] can: c_can: prepare to up the message objects
 number
Message-ID: <20210301194550.6zqmxzcwvzlgjzcj@pengutronix.de>
References: <20210228103856.4089-1-dariobin@libero.it>
 <20210228103856.4089-6-dariobin@libero.it>
 <20210301113805.jylhc373sip7zmed@pengutronix.de>
 <1037673059.602534.1614619302914@mail1.libero.it>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
        protocol="application/pgp-signature"; boundary="c22ofk4qmvaury3p"
Content-Disposition: inline
In-Reply-To: <1037673059.602534.1614619302914@mail1.libero.it>
Precedence: bulk


--c22ofk4qmvaury3p
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On 01.03.2021 18:21:42, Dario Binacchi wrote:
> > > @@ -730,7 +728,7 @@ static void c_can_do_tx(struct net_device *dev)
> > >  	while ((idx =3D ffs(pend))) {
> > >  		idx--;
> > >  		pend &=3D ~(1 << idx);
> > > -		obj =3D idx + C_CAN_MSG_OBJ_TX_FIRST;
> > > +		obj =3D idx + priv->msg_obj_tx_first;
> > >  		c_can_inval_tx_object(dev, IF_TX, obj);
> > >  		can_get_echo_skb(dev, idx, NULL);
> > >  		bytes +=3D priv->dlc[idx];
> > > @@ -740,7 +738,7 @@ static void c_can_do_tx(struct net_device *dev)
> > >  	/* Clear the bits in the tx_active mask */
> > >  	atomic_sub(clr, &priv->tx_active);
> > > =20
> > > -	if (clr & (1 << (C_CAN_MSG_OBJ_TX_NUM - 1)))
> > > +	if (clr & (1 << (priv->msg_obj_tx_num - 1)))
> >=20
> > Do we need 1UL here, too?
>=20
> Do you agree if I use the BIT macro ?

No, please use GENMASK(priv->msg_obj_tx_num, 0) here.

regrads,
Marc

--=20
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

--c22ofk4qmvaury3p
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iQEzBAABCgAdFiEEK3kIWJt9yTYMP3ehqclaivrt76kFAmA9RGwACgkQqclaivrt
76lnFwf8DQbsQes5TgYSyC4pX9bemW0J96NjGsVtmJ/v+SSZGthxcz5afH0HBsPy
7GNSENjVvOY643qHAVBHpkdEwjzNQNhSIX4mLn72bSB+IhLCc9eThSt2QRmZp0zc
1KeBvbHTc1KvkUkwvUuQkfsnN8pu8a16AbmWIC/N4eu9FkupvWGG1tf0KsJDH0xT
OQB8m/x8wP78JYFs4Caebaio9FduXWVcKjoo4Uk8NdEIDQXxY7DTqKVMw3UZaHwb
G5xQD2ywOr52+gOhegJzGFecPbMr5yVJ3oQoPaw28Cfj/e2s0Ix7jj1eY7lVdox7
xXdLlAZ0JiYYwn5gowhiB4nmjpMuzQ==
=+kpR
-----END PGP SIGNATURE-----

--c22ofk4qmvaury3p--