linux-kernel - Re: [PATCH v3 01/12] kexec_file: allow archs to handle special regions while locating memory hole

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Message-ID: <875zap95ha.fsf@morokweng.localdomain>
Date:   Tue, 14 Jul 2020 18:00:49 -0300
From:   Thiago Jung Bauermann <bauerman@...ux.ibm.com>
To:     Hari Bathini <hbathini@...ux.ibm.com>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kernel test robot <lkp@...el.com>,
        Pingfan Liu <piliu@...hat.com>,
        Kexec-ml <kexec@...ts.infradead.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Nayna Jain <nayna@...ux.ibm.com>,
        Petr Tesarik <ptesarik@...e.cz>,
        Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
        Sourabh Jain <sourabhjain@...ux.ibm.com>,
        lkml <linux-kernel@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...abs.org>,
        Eric Biederman <ebiederm@...ssion.com>,
        Dave Young <dyoung@...hat.com>, Vivek Goyal <vgoyal@...hat.com>
Subject: Re: [PATCH v3 01/12] kexec_file: allow archs to handle special regions while locating memory hole


Hari Bathini <hbathini@...ux.ibm.com> writes:

> Some architectures may have special memory regions, within the given
> memory range, which can't be used for the buffer in a kexec segment.
> Implement weak arch_kexec_locate_mem_hole() definition which arch code
> may override, to take care of special regions, while trying to locate
> a memory hole.
>
> Also, add the missing declarations for arch overridable functions and
> and drop the __weak descriptors in the declarations to avoid non-weak
> definitions from becoming weak.
>
> Reported-by: kernel test robot <lkp@...el.com>
> [lkp: In v1, arch_kimage_file_post_load_cleanup() declaration was missing]
> Signed-off-by: Hari Bathini <hbathini@...ux.ibm.com>
> Acked-by: Dave Young <dyoung@...hat.com>
> Tested-by: Pingfan Liu <piliu@...hat.com>

Reviewed-by: Thiago Jung Bauermann <bauerman@...ux.ibm.com>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center