lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20150721235354.GB15042@codeaurora.org>
Date:	Tue, 21 Jul 2015 16:53:54 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, Sascha Hauer <kernel@...gutronix.de>,
	Peter De Schrijver <pdeschrijver@...dia.com>,
	Tero Kristo <t-kristo@...com>,
	Russell King <linux@....linux.org.uk>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>
Subject: Re: [PATCH v5 2/8] clk: mmp: switch to GENMASK()

On 07/13, Andy Shevchenko wrote:
> diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
> index adf9b71..f5fdb0e 100644
> --- a/drivers/clk/mmp/clk.h
> +++ b/drivers/clk/mmp/clk.h
> @@ -39,7 +39,7 @@ extern struct clk *mmp_clk_register_factor(const char *name,
>  
>  /* Clock type "mix" */
>  #define MMP_CLK_BITS_MASK(width, shift)			\
> -		(((1 << (width)) - 1) << (shift))
> +		(GENMASK((width) - 1, 0) << (shift))

This can push the shift into the GENMASK instance too:

		(GENMASK((width) - 1 + (shift), (shift))

>  #define MMP_CLK_BITS_GET_VAL(data, width, shift)	\
>  		((data & MMP_CLK_BITS_MASK(width, shift)) >> (shift))
>  #define MMP_CLK_BITS_SET_VAL(val, width, shift)		\
> -- 
> 2.1.4
> 

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ