From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory CLEMENT Subject: Re: [PATCH 10/15] ARM: orion5x: cleanup cppcheck shifting errors Date: Mon, 24 Jun 2019 09:31:37 +0200 Message-ID: <871rzjmobq.fsf@FE-laptop> References: <20190623151313.970-1-tranmanphong@gmail.com> <20190623151313.970-11-tranmanphong@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20190623151313.970-11-tranmanphong@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Phong Tran , mark.rutland@arm.com, kstewart@linuxfoundation.org, songliubraving@fb.com, andrew@lunn.ch, peterz@infradead.org, nsekhar@ti.com, ast@kernel.org, jolsa@redhat.com, netdev@vger.kernel.org, gerg@uclinux.org, lorenzo.pieralisi@arm.com, will@kernel.org, linux-samsung-soc@vger.kernel.org, daniel@iogearbox.nettranmanphong@gmail.com, festevam@gmail.com, allison@lohutok.net, linux@armlinux.org.uk, krzk@kernel.org, haojian.zhuang@gmail.com, bgolaszewski@baylibre.com, tony@atomide.com, mingo@redhat.com, linux-imx@nxp.com, yhs@fb.com, sebastian.hesselbarth@gmail.com, illusionist.neo@gmail.com, jason@lakedaemon.net, liviu.dudau@arm.com, s.hauer@pengutronix.de, acme@kernel.org, lkundrak@v3.sk, robert.jarzmik@free.fr, dmg@turingmachine.org, swinslow@gmail.co List-Id: linux-omap@vger.kernel.org Hi Phong, > [arch/arm/mach-orion5x/pci.c:281]: (error) Shifting signed 32-bit value > by 31 bits is undefined behaviour > [arch/arm/mach-orion5x/pci.c:305]: (error) Shifting signed 32-bit value > by 31 bits is undefined behaviour > While Andrew was Ok with this version, I will wait for your v2 using BIT() marcro. Thanks, Gregory > Signed-off-by: Phong Tran > --- > arch/arm/mach-orion5x/pci.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c > index 76951bfbacf5..1b2c077ee7b8 100644 > --- a/arch/arm/mach-orion5x/pci.c > +++ b/arch/arm/mach-orion5x/pci.c > @@ -200,13 +200,13 @@ static int __init pcie_setup(struct pci_sys_data *sys) > /* > * PCI_MODE bits > */ > -#define PCI_MODE_64BIT (1 << 2) > -#define PCI_MODE_PCIX ((1 << 4) | (1 << 5)) > +#define PCI_MODE_64BIT (1U << 2) > +#define PCI_MODE_PCIX ((1U << 4) | (1U << 5)) > > /* > * PCI_CMD bits > */ > -#define PCI_CMD_HOST_REORDER (1 << 29) > +#define PCI_CMD_HOST_REORDER (1U << 29) > > /* > * PCI_P2P_CONF bits > @@ -223,7 +223,7 @@ static int __init pcie_setup(struct pci_sys_data *sys) > #define PCI_CONF_FUNC(func) (((func) & 0x3) << 8) > #define PCI_CONF_DEV(dev) (((dev) & 0x1f) << 11) > #define PCI_CONF_BUS(bus) (((bus) & 0xff) << 16) > -#define PCI_CONF_ADDR_EN (1 << 31) > +#define PCI_CONF_ADDR_EN (1U << 31) > > /* > * Internal configuration space > -- > 2.11.0 > -- Gregory Clement, Bootlin Embedded Linux and Kernel engineering http://bootlin.com