linux-kernel - Re: [PATCH net-next v2 02/15] xtensa: remove the get

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Date: Mon, 15 Apr 2024 08:04:55 -0700
From: Max Filippov <jcmvbkbc@...il.com>
To: Yunsheng Lin <linyunsheng@...wei.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com, 
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Chris Zankel <chris@...kel.net>
Subject: Re: [PATCH net-next v2 02/15] xtensa: remove the get_order() implementation

On Mon, Apr 15, 2024 at 6:21 AM Yunsheng Lin <linyunsheng@...wei.com> wrote:
>
> As the get_order() implemented by xtensa supporting 'nsau'
> instruction seems be the same as the generic implementation
> in include/asm-generic/getorder.h when size is not a constant
> value as the generic implementation calling the fls*() is also
> utilizing the 'nsau' instruction for xtensa.
>
> So remove the get_order() implemented by xtensa, as using the
> generic implementation may enable the compiler to do the
> computing when size is a constant value instead of runtime
> computing and enable the using of get_order() in BUILD_BUG_ON()
> macro.
>
> Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com>
> ---
>  arch/xtensa/include/asm/page.h | 18 ------------------
>  1 file changed, 18 deletions(-)

Acked-by: Max Filippov <jcmvbkbc@...il.com>

-- 
Thanks.
-- Max