| 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
| ||
|
Date: Mon, 02 Feb 2015 11:42:55 -0800 From: Stephen Boyd <sboyd@...eaurora.org> To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, Mike Turquette <mturquette@...aro.org> CC: linux-kernel@...r.kernel.org Subject: Re: [PATCH] clk: fractional-divider: support for divider bypassing On 02/02/15 05:37, Heikki Krogerus wrote: > If the divider or multiplier values values are 0 in the s/values// > register, bypassing the divider and returning the parent > clock rate in clk_fd_recalc_rate(). > > Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com> > --- Reviewed-by: Stephen Boyd <sboyd@...eaurora.org> > drivers/clk/clk-fractional-divider.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c > index dc91da7..34d6c51 100644 > --- a/drivers/clk/clk-fractional-divider.c > +++ b/drivers/clk/clk-fractional-divider.c > @@ -36,6 +36,9 @@ static unsigned long clk_fd_recalc_rate(struct clk_hw *hw, > m = (val & fd->mmask) >> fd->mshift; > n = (val & fd->nmask) >> fd->nshift; > > + if (!n || !m) > + return parent_rate; > + > ret = (u64)parent_rate * m; > do_div(ret, n); > -- 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