From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x226WqUMNxNClcqNna/9aV0q4wQXPL4sgP02yzCMG/23diVa24x1WGfk3TvD0KWDCrm045SGN ARC-Seal: i=1; a=rsa-sha256; t=1518452768; cv=none; d=google.com; s=arc-20160816; b=tUXANb+EMOwaZAOFTymVadfwPD4sRu2zzH7Gn0b7J0Np8EfAAMxu1nac6ODoh7V3oI Tsn8Ghob0NoftCq8ZsQPeA+lpDveS3ZFKlaL9q7xrvYqPx4zlWvplom/rWKFIOJp8Q5K Ham4G/ZCvyEslsPwyfJ1eEkNwgAH/N8zxn3n7iCTNroZndDk0ED++a46ponGm9QILpqP MnHsfiTRW7vUMdg5uKPA5HZWruI6n6I3z8NR6Si8zPwwsxMm2efyEix6DYCT+q7+JlNc utLS6gS9L1ZthUyU1fUBHfJiyTeOFuRAp3OrRT59Rq5GCqXWQsYYBJPqUiyO1FUVN73p Arvw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:date:face:references:in-reply-to:cc:to:from:subject :message-id:dkim-signature:arc-authentication-results; bh=ssc+yDKHYehPIGsd6ETXLtDLj5Fu468ctZOI1T+YpFo=; b=ybC1Lo+wXMHNTe0Ak/QLHuSxayAEbdGvhKXhiaXsE8ExxMkHsFp2F6ucLlFsQfKYKk re8d9f6o1ZlYb1gWwxXpuMPTZiFUNzpOnRhSt1N16rnsr31/oeLxZcP5Tul/hFSZ/5jt orJ6Lms0KPGia7QOX98MOh74dgddaFRsAPZFuVEBL32aTfeqcgfbAxQxy4K8x/3SgkPb VxDOtDqwxQk+cRo3ZMOawqZLYMAVndDkxVYLmYhsGxooR5++96ga9u2NEw42vuO5Cu1Y P6ZQHp2z65nrQGECbpi+baoUWK7v9ji4ddAs8rUNdYVamtPhEqe5/uQ6+h35AiAfrZFq I+pg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=twosheds.20170209 header.b=m1qDhK1j; spf=pass (google.com: best guess record for domain of batv+30b93a52ff5b1c3ea8f7+5286+infradead.org+dwmw2@twosheds.srs.infradead.org designates 90.155.92.209 as permitted sender) smtp.mailfrom=BATV+30b93a52ff5b1c3ea8f7+5286+infradead.org+dwmw2@twosheds.srs.infradead.org Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=twosheds.20170209 header.b=m1qDhK1j; spf=pass (google.com: best guess record for domain of batv+30b93a52ff5b1c3ea8f7+5286+infradead.org+dwmw2@twosheds.srs.infradead.org designates 90.155.92.209 as permitted sender) smtp.mailfrom=BATV+30b93a52ff5b1c3ea8f7+5286+infradead.org+dwmw2@twosheds.srs.infradead.org Message-ID: <1518452362.6606.102.camel@infradead.org> Subject: Re: [RFC PATCH 4/7] kconfig: support new special property shell= From: David Woodhouse To: Peter Zijlstra , Linus Torvalds Cc: Kees Cook , Ulf Magnusson , Masahiro Yamada , Linux Kbuild mailing list , Greg Kroah-Hartman , Andrew Morton , Nicolas Pitre , "Luis R . Rodriguez" , Randy Dunlap , Sam Ravnborg , Michal Marek , Martin Schwidefsky , Pavel Machek , linux-s390 , Jiri Kosina , Linux Kernel Mailing List , Tejun Heo , Ingo Molnar , "Van De Ven, Arjan" , Arnd Bergmann , Thomas Gleixner In-Reply-To: <20180212082635.GA25314@hirez.programming.kicks-ass.net> References: <20180210080556.mycqsjhxbaguwhay@huvuddator> <20180210085519.737ckf4bcl57h4g2@huvuddator> <20180211103432.pf2ot6nd7nbhdhsy@huvuddator> <20180212082635.GA25314@hirez.programming.kicks-ass.net> Face: 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 Content-Type: multipart/signed; micalg="sha-256"; protocol="application/x-pkcs7-signature"; boundary="=-zm/AaadPaU0iAgbuNa9x" Date: Mon, 12 Feb 2018 16:19:22 +0000 Mime-Version: 1.0 X-Mailer: Evolution 3.18.5.2-0ubuntu3.2 X-SRS-Rewrite: SMTP reverse-path rewritten from by twosheds.infradead.org. See http://www.infradead.org/rpr.html X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1591850368607646970?= X-GMAIL-MSGID: =?utf-8?q?1592213130360083363?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: --=-zm/AaadPaU0iAgbuNa9x Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2018-02-12 at 09:26 +0100, Peter Zijlstra wrote: > On Sun, Feb 11, 2018 at 10:13:44AM -0800, Linus Torvalds wrote: >=20 > > That actually sounds like we could just > >=C2=A0 > >=C2=A0 (a) make gcc 4.5 be the minimum required version > >=C2=A0 > >=C2=A0 (b) actually error out if we find a bad compiler >=20 > So the unofficial plan was to enforce asm-goto and -fentry support by > hard failure to build, which would get us at gcc-4.6 and then remove all > the fallback cruft needed for those features -- for x86. If we want to > do this tree wide, that's obviously OK with me too ;-) This would also kill clang support, right? --=-zm/AaadPaU0iAgbuNa9x Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEFQw ggUxMIIEGaADAgECAhBNRhEyk/HZ7naOeTHWrzuAMA0GCSqGSIb3DQEBCwUAMIGXMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRowGAYD VQQKExFDT01PRE8gQ0EgTGltaXRlZDE9MDsGA1UEAxM0Q09NT0RPIFJTQSBDbGllbnQgQXV0aGVu dGljYXRpb24gYW5kIFNlY3VyZSBFbWFpbCBDQTAeFw0xNzEyMjEwMDAwMDBaFw0xODEyMjEyMzU5 NTlaMCQxIjAgBgkqhkiG9w0BCQEWE2R3bXcyQGluZnJhZGVhZC5vcmcwggEiMA0GCSqGSIb3DQEB AQUAA4IBDwAwggEKAoIBAQDgzLNWa18DNpGUj/ZeH0Sgz53ESIbzdPw3OJeuNP6jZhxZojbyfxbM hETscxI/Hj6UZ4a7sHm5BkVjlsB1Af2Za/PXUt8MmLAcPMHkMPGunvkUibEvblDvpqMkQZlaZM+t 5PqFmWkbehLaEvbpNY7dmEAAeKh4klTzJzrr5AAzaCQ32cA2e3+DEIv5O5l9ViMIjy/JM+xMQrfX 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