linux-kernel - Re: [PATCH 2/3] soc: qcom: rpmh-rsc: Loop over less bits in irq handler

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Date:   Fri, 24 Apr 2020 10:11:51 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Maulik Shah <mkshah@...eaurora.org>
Subject: Re: [PATCH 2/3] soc: qcom: rpmh-rsc: Loop over less bits in irq handler

Hi,

On Thu, Apr 23, 2020 at 9:54 PM Stephen Boyd <swboyd@...omium.org> wrote:
>
> readl returns a u32, and BITS_PER_LONG is different on 32-bit vs. 64-bit
> architectures. Let's make the type we stash the readl into a u32 and
> then loop over the bits set in that type instead of potentially looping
> over more bits than we will ever need to.
>
> Cc: Maulik Shah <mkshah@...eaurora.org>
> Cc: Douglas Anderson <dianders@...omium.org>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
>  drivers/soc/qcom/rpmh-rsc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Douglas Anderson <dianders@...omium.org>