linux-kernel - Re: [patches] Re: [PATCH 01/17] lib: Add shared copies of some GCC library routines

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Date:   Mon, 10 Jul 2017 19:13:55 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Palmer Dabbelt <palmer@...belt.com>
Cc:     sfr@...b.auug.org.au, yamada.masahiro@...ionext.com,
        mmarek@...e.com, will.deacon@....com, peterz@...radead.org,
        boqun.feng@...il.com, mingo@...hat.com, daniel.lezcano@...aro.org,
        tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
        gregkh@...uxfoundation.org, jslaby@...e.com, davem@...emloft.net,
        mchehab@...nel.org, fweisbec@...il.com, viro@...iv.linux.org.uk,
        mcgrof@...nel.org, dledford@...hat.com, bart.vanassche@...disk.com,
        sstabellini@...nel.org, daniel.vetter@...ll.ch, mpe@...erman.id.au,
        msalter@...hat.com, nicolas.dichtel@...nd.com,
        james.hogan@...tec.com, paul.gortmaker@...driver.com,
        linux@...ck-us.net, heiko.carstens@...ibm.com,
        schwidefsky@...ibm.com, linux-kernel@...r.kernel.org,
        patches@...ups.riscv.org, akpm@...ux-foundation.org,
        albert@...ive.com
Subject: Re: [patches] Re: [PATCH 01/17] lib: Add shared copies of some GCC
 library routines

On 07/10/2017 07:09 PM, Palmer Dabbelt wrote:
> On Mon, 10 Jul 2017 19:03:44 PDT (-0700), rdunlap@...radead.org wrote:
>> On 07/10/2017 07:02 PM, Stephen Rothwell wrote:
>>> Hi Palmer,
>>>
>>> On Mon, 10 Jul 2017 18:39:08 -0700 Palmer Dabbelt <palmer@...belt.com> wrote:
>>>>
>>>> This patch adds a new copy of these library routine files, which are
>>>> functionally identical to the various other copies.  These are
>>>> availiable via Kconfig as CONFIG_LIB_$ROUTINE, which currently isn't
>>>
>>> Umm, the patch actually uses CONFIG_GENERIC_$ROUTINE.
>>>
>>>> +config GENERIC_ASHLDI3
>>>> +	def_bool n
>>>
>>> Just
>>> 	bool
>>> is the same.
>>>
>>
>> and several "default n" lines can (should) be removed from Kconfig.
> 
> I'm not much of a Kconfig hacker...  How does this look?
> 

Looks good.  Thanks.

> commit 4aaad1e6e8a70020dd95b8a13a4075af97cb858f
> Author: Palmer Dabbelt <palmer@...belt.com>
> Date:   Mon Jul 10 19:07:43 2017 -0700
> 
>     lib: Remove "default n" lines from Kconfig
> 
>     These lines aren't necessary, as the default is "n" anyway.
> 
>     Signed-off-by: Palmer Dabbelt <palmer@...belt.com>
> 
> diff --git a/lib/Kconfig b/lib/Kconfig
> index ee7d8bf0b7e1..78dec2408481 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -15,7 +15,6 @@ config BITREVERSE
> 
>  config HAVE_ARCH_BITREVERSE
>  	bool
> -	default n
>  	depends on BITREVERSE
>  	help
>  	  This option enables the use of hardware bit-reversal instructions on
> @@ -48,7 +47,6 @@ config GENERIC_IOMAP
> 
>  config GENERIC_IO
>  	bool
> -	default n
> 
>  config STMP_DEVICE
>  	bool
> @@ -199,7 +197,6 @@ config AUDIT_GENERIC
> 
>  config AUDIT_ARCH_COMPAT_GENERIC
>  	bool
> -	default n
> 
>  config AUDIT_COMPAT_GENERIC
>  	bool
> @@ -208,7 +205,6 @@ config AUDIT_COMPAT_GENERIC
> 
>  config RANDOM32_SELFTEST
>  	bool "PRNG perform self test on init"
> -	default n
>  	help
>  	  This option enables the 32 bit PRNG library functions to perform a
>  	  self test on initialization.
> @@ -405,12 +401,10 @@ config HAS_DMA
>  config DMA_NOOP_OPS
>  	bool
>  	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
> -	default n
> 
>  config DMA_VIRT_OPS
>  	bool
>  	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
> -	default n
> 
>  config CHECK_SIGNATURE
>  	bool
> 


-- 
~Randy