From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@amacapital.net>,
Dave Hansen <dave.hansen@linux.intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Rik van Riel <riel@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: Re: [PATCH 04/14] x86/fpu: Remove 'kbuf' parameter from the copy_xstate_to_user() APIs
Date: Mon, 30 Jan 2017 16:45:21 +0100 [thread overview]
Message-ID: <20170130154521.rtmqgsqkchdvxucv@pd.tnic> (raw)
In-Reply-To: <20170130095728.GA26142@gmail.com>
On Mon, Jan 30, 2017 at 10:57:28AM +0100, Ingo Molnar wrote:
> Would anyone object to using u32 in these prototypes?
Well, would there be any disadvantage to forcing them to u32?
Potentially by something else wanting to use those interfaces besides
the regset thing and that something else doesn't like u32s?
Otherwise, I don't see a problem.
I mean, if 4G are not enough for xstate dimensions then we have a whole
different problem.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2017-01-30 15:47 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-26 10:22 [PATCH 00/14] x86/fpu: Clean up ptrace copying functions Ingo Molnar
2017-01-26 10:22 ` [PATCH 01/14] x86/fpu: Rename copyin_to_xsaves()/copyout_from_xsaves() to copy_user_to_xstate()/copy_xstate_to_user() Ingo Molnar
2017-01-26 10:22 ` [PATCH 02/14] x86/fpu: Split copy_xstate_to_user() into copy_xstate_to_kernel() & copy_xstate_to_user() Ingo Molnar
2017-01-26 10:22 ` [PATCH 03/14] x86/fpu: Remove 'ubuf' parameter from the copy_xstate_to_kernel() APIs Ingo Molnar
2017-01-26 10:22 ` [PATCH 04/14] x86/fpu: Remove 'kbuf' parameter from the copy_xstate_to_user() APIs Ingo Molnar
2017-01-27 10:16 ` Borislav Petkov
2017-01-30 9:57 ` Ingo Molnar
2017-01-30 15:45 ` Borislav Petkov [this message]
2017-01-30 17:23 ` Yu-cheng Yu
2017-01-26 10:22 ` [PATCH 05/14] x86/fpu: Clean up parameter order in the copy_xstate_to_*() APIs Ingo Molnar
2017-01-26 10:22 ` [PATCH 06/14] x86/fpu: Clean up the parameter definitions of copy_xstate_to_*() Ingo Molnar
2017-01-26 10:22 ` [PATCH 07/14] x86/fpu: Remove the 'start_pos' parameter from the __copy_xstate_to_*() functions Ingo Molnar
2017-01-26 10:22 ` [PATCH 08/14] x86/fpu: Clarify parameter names in the copy_xstate_to_*() methods Ingo Molnar
2017-01-26 10:22 ` [PATCH 09/14] x86/fpu: Change 'size_total' parameter to unsigned and standardize the size checks in copy_xstate_to_*() Ingo Molnar
2017-01-30 17:11 ` Yu-cheng Yu
2017-01-26 10:22 ` [PATCH 10/14] x86/fpu: Simplify __copy_xstate_to_kernel() return values Ingo Molnar
2017-01-26 10:22 ` [PATCH 11/14] x86/fpu: Split copy_user_to_xstate() into copy_kernel_to_xstate() & copy_user_to_xstate() Ingo Molnar
2017-01-27 10:54 ` Borislav Petkov
2017-01-26 10:22 ` [PATCH 12/14] x86/fpu: Remove 'ubuf' parameter from the copy_kernel_to_xstate() API Ingo Molnar
2017-01-26 10:22 ` [PATCH 13/14] x86/fpu: Remove 'kbuf' parameter from the copy_user_to_xstate() API Ingo Molnar
2017-01-26 10:22 ` [PATCH 14/14] x86/fpu: Flip the parameter order in copy_*_to_xstate() Ingo Molnar
2017-01-26 10:28 ` [PATCH 00/14] x86/fpu: Clean up ptrace copying functions Ingo Molnar
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