linux-kernel - Re: [PATCH] arm64/mm: Drop BUG_ON() from [pmd|pud]_set

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Message-ID: <35b83daa-f092-fe77-0c1f-d32e2d573be5@arm.com>
Date:   Mon, 27 May 2019 12:14:14 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Subject: Re: [PATCH] arm64/mm: Drop BUG_ON() from [pmd|pud]_set_huge()



On 05/27/2019 12:07 PM, Ard Biesheuvel wrote:
> On Mon, 27 May 2019 at 06:02, Anshuman Khandual
> <anshuman.khandual@....com> wrote:
>> There are no callers for the functions which will pass unaligned physical
>> addresses. Hence just drop these BUG_ON() checks which are not required.
>>
> This might change in the future, right? Should we perhaps switch to
> VM_BUG_ON() instead so they get compiled out unless CONFIG_VM_DEBUG is
> enabled?

Sure we can do that. Will re-send.