From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pankaj Dubey Subject: Re: [PATCH 05/10] ARM: EXYNOS: Move "regs-pmu" header inclusion in common.h Date: Thu, 10 Apr 2014 13:58:18 +0900 Message-ID: <534624EA.2020406@samsung.com> References: <1396425058-4012-1-git-send-email-pankaj.dubey@samsung.com> <1396425058-4012-6-git-send-email-pankaj.dubey@samsung.com> <53441F25.9080801@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-reply-to: <53441F25.9080801@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Tomasz Figa Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, kgene.kim@samsung.com, linux@arm.linux.org.uk, chow.kim@samsung.com List-Id: linux-samsung-soc@vger.kernel.org Hi Tomasz, On 04/09/2014 01:09 AM, Tomasz Figa wrote: > Hi Pankaj, > > On 02.04.2014 09:50, Pankaj Dubey wrote: >> There are many machine files under "mach-exynos" including "regs-pmu.h" >> as well as "common.h", so better we move this header inclusion in common.h. >> >> Signed-off-by: Pankaj Dubey >> --- >> arch/arm/mach-exynos/common.h | 1 + >> arch/arm/mach-exynos/cpuidle.c | 1 - >> arch/arm/mach-exynos/exynos.c | 1 - >> arch/arm/mach-exynos/hotplug.c | 1 - >> arch/arm/mach-exynos/platsmp.c | 1 - >> arch/arm/mach-exynos/pm.c | 1 - >> arch/arm/mach-exynos/pmu.c | 1 - >> 7 files changed, 1 insertion(+), 6 deletions(-) >> >> diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h >> index 277a83e..ff28334 100644 >> --- a/arch/arm/mach-exynos/common.h >> +++ b/arch/arm/mach-exynos/common.h >> @@ -14,6 +14,7 @@ >> >> #include >> #include >> +#include "regs-pmu.h" >> >> void exynos_init_io(void); >> void exynos_restart(enum reboot_mode mode, const char *cmd); >> diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c >> index b530231..b9dd8c3 100644 >> --- a/arch/arm/mach-exynos/cpuidle.c >> +++ b/arch/arm/mach-exynos/cpuidle.c >> @@ -29,7 +29,6 @@ >> #include >> >> #include "common.h" >> -#include "regs-pmu.h" >> >> #define REG_DIRECTGO_ADDR (samsung_rev() == EXYNOS4210_REV_1_1 ? \ >> S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ >> diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c >> index 57bd1cd..a5e1349 100644 >> --- a/arch/arm/mach-exynos/exynos.c >> +++ b/arch/arm/mach-exynos/exynos.c >> @@ -30,7 +30,6 @@ >> >> #include "common.h" >> #include "mfc.h" >> -#include "regs-pmu.h" >> #include "regs-sys.h" >> >> #define L2_AUX_VAL 0x7C470001 >> diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c >> index 5eead53..33db6ee 100644 >> --- a/arch/arm/mach-exynos/hotplug.c >> +++ b/arch/arm/mach-exynos/hotplug.c >> @@ -22,7 +22,6 @@ >> #include >> >> #include "common.h" >> -#include "regs-pmu.h" >> >> static inline void cpu_enter_lowpower_a9(void) >> { >> diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c >> index d8d1555..3ebb03f 100644 >> --- a/arch/arm/mach-exynos/platsmp.c >> +++ b/arch/arm/mach-exynos/platsmp.c >> @@ -29,7 +29,6 @@ >> #include >> >> #include "common.h" >> -#include "regs-pmu.h" >> >> extern void exynos4_secondary_startup(void); >> >> diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c >> index 723c988..875151f 100644 >> --- a/arch/arm/mach-exynos/pm.c >> +++ b/arch/arm/mach-exynos/pm.c >> @@ -34,7 +34,6 @@ >> #include >> >> #include "common.h" >> -#include "regs-pmu.h" >> #include "regs-sys.h" >> >> /** >> diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c >> index 05c7ce1..fb44352 100644 >> --- a/arch/arm/mach-exynos/pmu.c >> +++ b/arch/arm/mach-exynos/pmu.c >> @@ -16,7 +16,6 @@ >> #include >> >> #include "common.h" >> -#include "regs-pmu.h" >> >> static const struct exynos_pmu_conf *exynos_pmu_config; >> >> > > I don't think this is a good idea. It adds hidden indirect dependencies > between source files and thus reduces maintainability and readability. In > addition it causes the file to be included even by files that don't need it. > Thanks for review. I did this change because: 1: Currently only these 6 files (under "arm/mach-exynos/") are including "regs-pmu.h" as well as "common.h" so all these source files requires "regs-pmu.h" can get it included via "common.h". 2: Next if we change location/rename "regs-pmu.h", we need to update all these source files. On the other hand if it's present in common.h it can be done at single place in "common.h". 3: More over just checked that even currently common.h has some hidden includes such as ("linux/of.h") which is not required by all source files (I can see only pm.c needs it). So let me know if still you think it's not good idea, I will consider to drop this patch in next version of patch series. > Best regards, > Tomasz > -- Best Regards, Pankaj Dubey