From mboxrd@z Thu Jan 1 00:00:00 1970 From: afzal.mohd.ma@gmail.com (Afzal Mohammed) Date: Sun, 22 Jan 2017 09:07:45 +0530 Subject: [PATCH 2/4] ARM: nommu: dynamic exception base address setting In-Reply-To: <20170120162022.GB3865@afzalpc> References: <20170118203525.6246-1-afzal.mohd.ma@gmail.com> <20170118203807.6467-1-afzal.mohd.ma@gmail.com> <20170120162022.GB3865@afzalpc> Message-ID: <20170122033745.GB13580@afzalpc> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On Fri, Jan 20, 2017 at 09:50:22PM +0530, Afzal Mohammed wrote: > On Thu, Jan 19, 2017 at 01:59:09PM +0000, Vladimir Murzin wrote: > > You can use > > > > cpuid_feature_extract(CPUID_EXT_PFR1, 4) > > > > and add a comment explaining what we are looking for and why. W.r.t comments, tried to keep it concise, C tokens doing a part of it. > Yes, that is better, was not aware of this, did saw CPUID_EXT_PFR1 as > an unused macro. > > > +#ifdef CONFIG_CPU_CP15 > > > + vectors_base = setup_vectors_base(); > > > +#endif > > > > alternatively it can be > > > > unsigned long vector_base = IS_ENABLED(CONFIG_CPU_CP15) ? setup_vbar() : 0; > > Yes that certainly is better. Have kept the function name as setup_vector_base() as in addition to setting up VBAR, V bit also has to be configured by it - so that function name remains true to it's name. v2 with changes has been posted. Regards afzal