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Message-ID: <20210331215218.GA3437@yury-ThinkPad>
Date: Wed, 31 Mar 2021 14:52:18 -0700
From: Yury Norov <yury.norov@...il.com>
To: Mike Rapoport <rppt@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
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Subject: Re: [PATCH] memfd_secret: use unsigned int rather than long as
syscall flags type
On Wed, Mar 31, 2021 at 05:23:45PM +0300, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@...ux.ibm.com>
>
> Yuri Norov says:
>
> If parameter size is the same for native and compat ABIs, we may
> wire a syscall made by compat client to native handler. This is
> true for unsigned int, but not true for unsigned long or pointer.
>
> That's why I suggest using unsigned int and so avoid creating compat
> entry point.
>
> Use unsigned int as the type of the flags parameter in memfd_secret()
> system call.
>
> Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
Acked-by: Yury Norov <yury.norov@...il.com>
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