linux-kernel - Re: [PATCH 1/2] clk: samsung: Don't build ARMv8 clock drivers on ARMv7

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-id: <564947E1.1030409@samsung.com>
Date:	Mon, 16 Nov 2015 12:05:05 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Kukjin Kim <kgene@...nel.org>, Olof Johansson <olof@...om.net>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	Kevin Hilman <khilman@...aro.org>
Cc:	Pankaj Dubey <pankaj.dubey@...sung.com>
Subject: Re: [PATCH 1/2] clk: samsung: Don't build ARMv8 clock drivers on ARMv7

Hi,

On 2015년 11월 16일 10:36, Krzysztof Kozlowski wrote:
> Currently the Exynos5433 (ARMv8 SoC) clock driver depends on ARCH_EXYNOS
> so it is built also on ARMv7. This does not bring any kind of benefit.
> There won't be a single kernel image for ARMv7 and ARMv8 SoCs (like
> multi_v7 for ARMv7).
> 
> Instead build clock drivers only for respective SoC's architecture.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
>  drivers/clk/samsung/Kconfig  | 13 +++++++++++++
>  drivers/clk/samsung/Makefile |  4 ++--
>  2 files changed, 15 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/samsung/Kconfig b/drivers/clk/samsung/Kconfig
> index 84196ecdaa12..5f138fc4d84d 100644
> --- a/drivers/clk/samsung/Kconfig
> +++ b/drivers/clk/samsung/Kconfig
> @@ -2,6 +2,7 @@ config COMMON_CLK_SAMSUNG
>  	bool
>  	select COMMON_CLK
>  
> +# ARMv7 SoCs:
>  config S3C2410_COMMON_CLK
>  	bool
>  	select COMMON_CLK_SAMSUNG
> @@ -24,3 +25,15 @@ config S3C2443_COMMON_CLK
>  	bool
>  	select COMMON_CLK_SAMSUNG
>  
> +# ARMv8 SoCs:
> +config EXYNOS5433_COMMON_CLK
> +	bool
> +	depends on ARM64 || COMPILE_TEST
> +	default ARCH_EXYNOS
> +	select COMMON_CLK_SAMSUNG
> +
> +config EXYNOS7_COMMON_CLK
> +	bool
> +	depends on ARM64 || COMPILE_TEST
> +	default ARCH_EXYNOS
> +	select COMMON_CLK_SAMSUNG
> diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
> index 5f6833ea355d..a31332a24ef4 100644
> --- a/drivers/clk/samsung/Makefile
> +++ b/drivers/clk/samsung/Makefile
> @@ -10,11 +10,11 @@ obj-$(CONFIG_SOC_EXYNOS5250)	+= clk-exynos5250.o
>  obj-$(CONFIG_SOC_EXYNOS5260)	+= clk-exynos5260.o
>  obj-$(CONFIG_SOC_EXYNOS5410)	+= clk-exynos5410.o
>  obj-$(CONFIG_SOC_EXYNOS5420)	+= clk-exynos5420.o
> -obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos5433.o
> +obj-$(CONFIG_EXYNOS5433_COMMON_CLK)	+= clk-exynos5433.o
>  obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o
>  obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-audss.o
>  obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-clkout.o
> -obj-$(CONFIG_ARCH_EXYNOS7)	+= clk-exynos7.o
> +obj-$(CONFIG_EXYNOS7_COMMON_CLK)	+= clk-exynos7.o
>  obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o
>  obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o
>  obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
> 

Looks good to me.

Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>

Regards,
Chanwoo Choi
--
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/