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Message-ID: <CAOxq_8Na-6LQZGaCx_zge9wYnT+d8OsqgaPS=1aL56XF0uAkTQ@mail.gmail.com> Date: Tue, 24 May 2016 15:31:22 -0700 From: Ani Sinha <ani@...sta.com> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: hwmon.c as a kernel module in 3.18 Never mind. I figured it out. The commit that changed the behavior is : commit de0a41484c47d783dd4d442914815076aa2caac2 Author: Paul Gortmaker <paul.gortmaker@...driver.com> Date: Mon Oct 1 11:43:49 2012 -0400 tg3: unconditionally select HWMON support when tg3 is enabled. So I had exactly this combination : CONFIG_TG3 was 'y' whereas CONFIG_HWMON was 'm'. I have fixed it now. thanks ani On Tue, May 24, 2016 at 1:10 PM, Ani Sinha <ani@...sta.com> wrote: > Hi guys : > > I am facing this interesting issue and I can't quite figure out what > the root cause is. Any help will be greatly appreciated. > > In my old 3.4 kernel, I had configured HWMON (CONFIG_HWMON) as a > module ('m'). Now I am trying to upgrade to 3.18 and I am trying to > keep the same kernel configuration as much as I can. The weird thing > is, after setting CONFIG_HWMON to 'm. when I do config oldconfig, it's > setting it back to 'y' (in-built module). I can't figure out which > kernel option is turning the 'm' to 'y'. I have done menuconfig, then > searched for the symbol and then looked at all the dependencies. > However I am still clueless. I am wondering if there is some debug > option which when turned on will print out some logs which will give > me more insights into why this is happening. > > thanks a lot in advance > ani
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