From: Olaf Hering <olaf@aepfle.de>
To: "Michael Kelley (LINUX)" <mikelley@microsoft.com>
Cc: Li kunyu <kunyu@nfschina.com>, KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
Dexuan Cui <decui@microsoft.com>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
"will@kernel.org" <will@kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"bp@alien8.de" <bp@alien8.de>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"hpa@zytor.com" <hpa@zytor.com>, "arnd@arndb.de" <arnd@arndb.de>,
"x86@kernel.org" <x86@kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>
Subject: Re: [PATCH v3] hyperv: simplify and rename generate_guest_id
Date: Mon, 26 Sep 2022 09:56:49 +0200 [thread overview]
Message-ID: <20220926095649.1f963340.olaf@aepfle.de> (raw)
In-Reply-To: <BYAPR21MB1688890F578A59F69DEB55C1D7509@BYAPR21MB1688.namprd21.prod.outlook.com>
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Sat, 24 Sep 2022 05:31:34 +0000 "Michael Kelley (LINUX)" <mikelley@microsoft.com>:
> From: Olaf Hering <olaf@aepfle.de> Sent: Friday, September 23, 2022 2:09 PM
> > A very long time ago I removed most usage of version.h AFAIR,
> Could you elaborate?
It is the cost of 'make LOCALVERSION=x' vs. 'make LOCALVERSION=y'.
Too many drivers will be recompiled for no good reason as of today.
I claim no consumer below drivers/ and sound/ has a valid usecase for version.h.
But, someone else has to take the energy and argue them out of the tree.
With the proposed change every consumer of asm-generic/mshyperv.h will be dirty,
see 'touch include/asm-generic/mshyperv.h' for the impact. Therefore I think
only the two existing c files should include this header, in case the provided
information has a true value for the consumer.
Olaf
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next prev parent reply other threads:[~2022-09-26 8:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-23 11:42 [PATCH v3] hyperv: simplify and rename generate_guest_id Li kunyu
2022-09-23 20:18 ` Michael Kelley (LINUX)
2022-09-23 21:09 ` Olaf Hering
2022-09-24 5:31 ` Michael Kelley (LINUX)
2022-09-26 7:56 ` Olaf Hering [this message]
2022-09-27 4:54 ` Michael Kelley (LINUX)
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