linux-kernel - Re: [PATCH 5/5] x86: Drop asmlinkage from syscalls

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Message-ID: <20200221065610.GC3368@light.dominikbrodowski.net>
Date:   Fri, 21 Feb 2020 07:56:10 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     Brian Gerst <brgerst@...il.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH 5/5] x86: Drop asmlinkage from syscalls

On Fri, Feb 21, 2020 at 12:09:34AM -0500, Brian Gerst wrote:
> asmlinkage is no longer required since the syscall ABI is now fully under
> x86 architecture control.  This makes the 32-bit native syscalls a bit more
> effecient by passing in regs via EAX instead of on the stack.
> 
> Signed-off-by: Brian Gerst <brgerst@...il.com>
Reviewed-by: Dominik Brodowski <linux@...inikbrodowski.net>

Thanks,
	Dominik