linux-kernel - Re: [PATCH v11 2/2] Drivers: hv: Introduce mshv

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Message-ID: <20251112101038.GE4067720@noisy.programming.kicks-ass.net>
Date: Wed, 12 Nov 2025 11:10:38 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Michael Kelley <mhklinux@...look.com>
Cc: Naman Jain <namjain@...ux.microsoft.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Sean Christopherson <seanjc@...gle.com>,
	"K . Y . Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	Mukesh Rathor <mrathor@...ux.microsoft.com>,
	Stanislav Kinsburskii <skinsburskii@...ux.microsoft.com>,
	Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
	Christoph Hellwig <hch@...radead.org>,
	Saurabh Sengar <ssengar@...ux.microsoft.com>,
	ALOK TIWARI <alok.a.tiwari@...cle.com>
Subject: Re: [PATCH v11 2/2] Drivers: hv: Introduce mshv_vtl driver

On Wed, Nov 12, 2025 at 09:44:20AM +0000, Michael Kelley wrote:

> Thanks. If that symbol is referenced only by these few lines, I'd
> go with something even shorter and simpler. Perhaps:
> 
> .section		.discard.addressable,"aw"
> .align 8
> .type	vtl_return_sym, @object
> .size	vtl_return_sym, 8
> vtl_return_sym:
> .quad	__SCK____mshv_vtl_return_hypercall
> 
> Regardless of the choice of symbol name, add a comment about
> mimicking __ADDRESSABLE(). That feels less messy to me, but
> it's Naman's call.

Right, that'll work.