All of lore.kernel.org
 help / color / mirror / Atom feed
From: Borislav Petkov <bp@alien8.de>
To: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
	linux@arm.linux.org.uk, mhiramat@kernel.org,
	masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com,
	heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com,
	anil.s.keshavamurthy@intel.com, davem@davemloft.net,
	realmz6@gmail.com, x86@kernel.org, luto@amacapital.net,
	keescook@chromium.org, torvalds@linux-foundation.org,
	gregkh@linuxfoundation.org, rusty@rustcorp.com.au,
	gnomes@lxorguk.ukuu.org.uk, alan@linux.intel.com,
	dwmw2@infradead.org, arnd@arndb.de, ming.lei@canonical.com,
	linux-arch@vger.kernel.org, benh@kernel.crashing.org,
	ananth@in.ibm.com, pebolle@tiscali.nl, fontana@sharpeleven.org,
	ciaran.farrell@suse.com, christopher.denicolo@suse.com,
	david.vrabel@citrix.com, konrad.wilk@oracle.com, mcb30@ipxe.org,
	jgross@suse.com, andrew.cooper3@citrix.com,
	andriy.shevchenko@linux.intel.com, paul.gortmaker@windriver.com,
	xen-
Subject: Re: [RFC v3 07/13] tables.h: add linker table support
Date: Fri, 12 Aug 2016 15:51:21 +0000	[thread overview]
Message-ID: <20160812155121.GB13315@nazgul.tnic> (raw)
In-Reply-To: <20160812152805.GD3296@wotan.suse.de>

On Fri, Aug 12, 2016 at 05:28:05PM +0200, Luis R. Rodriguez wrote:
> Even so, you don't link the compiled extra code so the only penalty
> here is when compiling, nothing more. And if you are compiling typically
> the cost here is just a few seconds.

Yeah, so let's make it clear that this is similar to COMPILE_TEST and
people with fast machines and who don't mind building a couple more
seconds longer, should enable it.

You don't want to be doing bit-rotting tests on small, weak machines,
which barely get done with the build as it is. I have a 32-bit atom
which takes hours to build a kernel. Enabling that there is not making
the kernel build any more fun.

> > ... or you simply don't want to have stuff which is forcibly enabled on you even
> > if you're never going to need it
> > ...
> 
> Which seems to be the same as the reason I noted ?

No, the reason is we don't force stuff down people's throats just
because we think we know better. Other people do that.

Instead, we help them make an informed decision by describing the
feature as precisely as possible.

> I can remove the grumpy maintainer description :)

Yap :-)

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
	linux@arm.linux.org.uk, mhiramat@kernel.org,
	masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com,
	heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com,
	anil.s.keshavamurthy@intel.com, davem@davemloft.net,
	realmz6@gmail.com, x86@kernel.org, luto@amacapital.net,
	keescook@chromium.org, torvalds@linux-foundation.org,
	gregkh@linuxfoundation.org, rusty@rustcorp.com.au,
	gnomes@lxorguk.ukuu.org.uk, alan@linux.intel.com,
	dwmw2@infradead.org, arnd@arndb.de, ming.lei@canonical.com,
	linux-arch@vger.kernel.org, benh@kernel.crashing.org,
	ananth@in.ibm.com, pebolle@tiscali.nl, fontana@sharpeleven.org,
	ciaran.farrell@suse.com, christopher.denicolo@suse.com,
	david.vrabel@citrix.com, konrad.wilk@oracle.com, mcb30@ipxe.org,
	jgross@suse.com, andrew.cooper3@citrix.com,
	andriy.shevchenko@linux.intel.com, paul.gortmaker@windriver.com,
	xen-
Subject: Re: [RFC v3 07/13] tables.h: add linker table support
Date: Fri, 12 Aug 2016 17:51:21 +0200	[thread overview]
Message-ID: <20160812155121.GB13315@nazgul.tnic> (raw)
In-Reply-To: <20160812152805.GD3296@wotan.suse.de>

On Fri, Aug 12, 2016 at 05:28:05PM +0200, Luis R. Rodriguez wrote:
> Even so, you don't link the compiled extra code so the only penalty
> here is when compiling, nothing more. And if you are compiling typically
> the cost here is just a few seconds.

Yeah, so let's make it clear that this is similar to COMPILE_TEST and
people with fast machines and who don't mind building a couple more
seconds longer, should enable it.

You don't want to be doing bit-rotting tests on small, weak machines,
which barely get done with the build as it is. I have a 32-bit atom
which takes hours to build a kernel. Enabling that there is not making
the kernel build any more fun.

> > ... or you simply don't want to have stuff which is forcibly enabled on you even
> > if you're never going to need it
> > ...
> 
> Which seems to be the same as the reason I noted ?

No, the reason is we don't force stuff down people's throats just
because we think we know better. Other people do that.

Instead, we help them make an informed decision by describing the
feature as precisely as possible.

> I can remove the grumpy maintainer description :)

Yap :-)

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
	linux@arm.linux.org.uk, mhiramat@kernel.org,
	masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com,
	heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com,
	anil.s.keshavamurthy@intel.com, davem@davemloft.net,
	realmz6@gmail.com, x86@kernel.org, luto@amacapital.net,
	keescook@chromium.org, torvalds@linux-foundation.org,
	gregkh@linuxfoundation.org, rusty@rustcorp.com.au,
	gnomes@lxorguk.ukuu.org.uk, alan@linux.intel.com,
	dwmw2@infradead.org, arnd@arndb.de, ming.lei@canonical.com,
	linux-arch@vger.kernel.org, benh@kernel.crashing.org,
	ananth@in.ibm.com, pebolle@tiscali.nl, fontana@sharpeleven.org,
	ciaran.farrell@suse.com, christopher.denicolo@suse.com,
	david.vrabel@citrix.com, konrad.wilk@oracle.com, mcb30@ipxe.org,
	jgross@suse.com, andrew.cooper3@citrix.com,
	andriy.shevchenko@linux.intel.com, paul.gortmaker@windriver.com,
	xen-devel@lists.xensource.com, ak@linux.intel.com,
	pali.rohar@gmail.com, dvhart@infradead.org,
	platform-driver-x86@vger.kernel.org, mmarek@suse.com,
	linux@rasmusvillemoes.dk, jkosina@suse.cz, korea.drzix@gmail.com,
	linux-kbuild@vger.kernel.org, tony.luck@intel.com,
	akpm@linux-foundation.org, linux-ia64@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org,
	sparclinux@vger.kernel.org, catalin.marinas@arm.com,
	will.deacon@arm.com, rostedt@goodmis.org, jpoimboe@redhat.com
Subject: Re: [RFC v3 07/13] tables.h: add linker table support
Date: Fri, 12 Aug 2016 17:51:21 +0200	[thread overview]
Message-ID: <20160812155121.GB13315@nazgul.tnic> (raw)
In-Reply-To: <20160812152805.GD3296@wotan.suse.de>

On Fri, Aug 12, 2016 at 05:28:05PM +0200, Luis R. Rodriguez wrote:
> Even so, you don't link the compiled extra code so the only penalty
> here is when compiling, nothing more. And if you are compiling typically
> the cost here is just a few seconds.

Yeah, so let's make it clear that this is similar to COMPILE_TEST and
people with fast machines and who don't mind building a couple more
seconds longer, should enable it.

You don't want to be doing bit-rotting tests on small, weak machines,
which barely get done with the build as it is. I have a 32-bit atom
which takes hours to build a kernel. Enabling that there is not making
the kernel build any more fun.

> > ... or you simply don't want to have stuff which is forcibly enabled on you even
> > if you're never going to need it
> > ...
> 
> Which seems to be the same as the reason I noted ?

No, the reason is we don't force stuff down people's throats just
because we think we know better. Other people do that.

Instead, we help them make an informed decision by describing the
feature as precisely as possible.

> I can remove the grumpy maintainer description :)

Yap :-)

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

  reply	other threads:[~2016-08-12 15:51 UTC|newest]

Thread overview: 176+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-22 21:24 [RFC v3 00/13] linux: generalize sections, ranges and linker tables Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 01/13] x86: remove LTO_REFERENCE_INITCALL() Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 02/13] dell-smo8800: include uaccess.h Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:31   ` Pali Rohár
2016-07-22 21:31     ` Pali Rohár
2016-07-22 21:31     ` Pali Rohár
2016-07-22 21:24 ` [RFC v3 03/13] scripts/module-common.lds: enable generation Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 04/13] sections.h: guard against asm and linker script Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 05/13] sections.h: add sections header to collect all section info Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:37   ` James Hogan
2016-07-22 21:37     ` James Hogan
2016-07-22 21:37     ` James Hogan
2016-07-22 21:41     ` Luis R. Rodriguez
2016-07-22 21:41       ` Luis R. Rodriguez
2016-07-22 21:41       ` Luis R. Rodriguez
2016-07-29 17:28     ` Steven Rostedt
2016-07-29 17:28       ` Steven Rostedt
2016-07-29 17:28       ` Steven Rostedt
2016-07-22 21:24 ` [RFC v3 06/13] ranges.h: add helpers to build and identify Linux section ranges Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 07/13] tables.h: add linker table support Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-25 15:30   ` Masami Hiramatsu
2016-07-25 15:30     ` Masami Hiramatsu
2016-07-25 15:30     ` Masami Hiramatsu
2016-07-27 23:02     ` Luis R. Rodriguez
2016-07-27 23:02       ` Luis R. Rodriguez
2016-07-27 23:02       ` Luis R. Rodriguez
2016-07-28 17:08       ` H. Peter Anvin
2016-07-28 17:08       ` H. Peter Anvin
2016-07-28 17:08       ` H. Peter Anvin
2016-07-28 17:08         ` H. Peter Anvin
2016-07-28 17:08       ` H. Peter Anvin
2016-07-29 10:06   ` Borislav Petkov
2016-07-29 10:06     ` Borislav Petkov
2016-07-29 10:06     ` Borislav Petkov
2016-08-08 15:05     ` Luis R. Rodriguez
2016-08-08 15:05       ` Luis R. Rodriguez
2016-08-08 15:05       ` Luis R. Rodriguez
2016-08-09  3:55       ` Borislav Petkov
2016-08-09  3:55         ` Borislav Petkov
2016-08-09  3:55         ` Borislav Petkov
2016-08-12  3:51         ` Luis R. Rodriguez
2016-08-12  3:51           ` Luis R. Rodriguez
2016-08-12  3:51           ` Luis R. Rodriguez
2016-08-12  5:23           ` Borislav Petkov
2016-08-12  5:23             ` Borislav Petkov
2016-08-12  5:23             ` Borislav Petkov
2016-08-12  6:50             ` Luis R. Rodriguez
2016-08-12  6:50               ` Luis R. Rodriguez
2016-08-12  6:50               ` Luis R. Rodriguez
2016-08-12  7:25               ` Borislav Petkov
2016-08-12  7:25                 ` Borislav Petkov
2016-08-12  7:25                 ` Borislav Petkov
2016-08-12 15:28                 ` Luis R. Rodriguez
2016-08-12 15:28                   ` Luis R. Rodriguez
2016-08-12 15:28                   ` Luis R. Rodriguez
2016-08-12 15:51                   ` Borislav Petkov [this message]
2016-08-12 15:51                     ` Borislav Petkov
2016-08-12 15:51                     ` Borislav Petkov
2016-08-12 17:04                     ` Luis R. Rodriguez
2016-08-12 17:04                       ` Luis R. Rodriguez
2016-08-12 17:04                       ` Luis R. Rodriguez
2016-08-12 17:35                       ` Borislav Petkov
2016-08-12 17:35                         ` Borislav Petkov
2016-08-12 17:35                         ` Borislav Petkov
2016-08-12 18:16                         ` Kees Cook
2016-08-12 20:23                       ` Greg KH
2016-08-12 20:23                         ` Greg KH
2016-08-12 20:23                         ` Greg KH
2016-08-12 20:46                         ` Jiri Kosina
2016-08-12 20:46                           ` Jiri Kosina
2016-08-12 20:46                           ` Jiri Kosina
2016-08-12 22:00                         ` Luis R. Rodriguez
2016-08-12 22:00                           ` Luis R. Rodriguez
2016-08-12 22:00                           ` Luis R. Rodriguez
2016-08-13 10:46                           ` Greg KH
2016-08-13 10:46                             ` Greg KH
2016-08-13 10:46                             ` Greg KH
2016-08-13 17:54                             ` Luis R. Rodriguez
2016-08-13 17:54                               ` Luis R. Rodriguez
2016-08-13 17:54                               ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 08/13] firmware/Makefile: force recompilation if makefile changes Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 09/13] firmware: port built-in section to linker table Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 10/13] jump_label: port __jump_table to linker tables Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:49   ` Josh Poimboeuf
2016-07-22 21:49     ` Josh Poimboeuf
2016-07-22 21:49     ` Josh Poimboeuf
2016-07-22 22:26     ` Luis R. Rodriguez
2016-07-22 22:26       ` Luis R. Rodriguez
2016-07-22 22:26       ` Luis R. Rodriguez
2016-07-22 22:55       ` Josh Poimboeuf
2016-07-22 22:55         ` Josh Poimboeuf
2016-07-22 22:55         ` Josh Poimboeuf
2016-07-27 22:55         ` Luis R. Rodriguez
2016-07-27 22:55           ` Luis R. Rodriguez
2016-07-27 22:55           ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 11/13] dynamic_debug: port to use " Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 12/13] kprobes: port .kprobes.text to section range Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-25 15:19   ` Masami Hiramatsu
2016-07-25 15:19     ` Masami Hiramatsu
2016-07-25 15:19     ` Masami Hiramatsu
2016-07-27 22:40     ` Luis R. Rodriguez
2016-07-27 22:40       ` Luis R. Rodriguez
2016-07-27 22:40       ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 13/13] kprobes: port blacklist kprobes to linker table Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-22 21:24   ` Luis R. Rodriguez
2016-07-25 15:27   ` Masami Hiramatsu
2016-07-25 15:27     ` Masami Hiramatsu
2016-07-25 15:27     ` Masami Hiramatsu
2016-07-27 23:00     ` Luis R. Rodriguez
2016-07-27 23:00       ` Luis R. Rodriguez
2016-07-27 23:00       ` Luis R. Rodriguez
2016-07-25 13:32 ` [RFC v3 00/13] linux: generalize sections, ranges and linker tables Masami Hiramatsu
2016-07-25 13:32   ` Masami Hiramatsu
2016-07-25 13:32   ` Masami Hiramatsu
2016-07-25 13:55   ` Richard Fontana
2016-07-25 13:55     ` Richard Fontana
2016-07-25 13:55     ` Richard Fontana
2016-07-27 22:46   ` Luis R. Rodriguez
2016-07-27 22:46     ` Luis R. Rodriguez
2016-07-27 22:46     ` Luis R. Rodriguez
2016-07-27 22:27 ` Luis R. Rodriguez
2016-08-09 14:24 ` One Thousand Gnomes
2016-08-09 14:24   ` One Thousand Gnomes
2016-08-09 14:24   ` One Thousand Gnomes
2016-08-09 16:09   ` James Bottomley
2016-08-09 16:09     ` James Bottomley
2016-08-09 16:09     ` James Bottomley
2016-08-10  4:51     ` Andy Lutomirski
2016-08-10  4:51       ` Andy Lutomirski
2016-08-15 20:15       ` Alan Cox
2016-08-15 20:15         ` Alan Cox
2016-08-15 21:00         ` Steven Rostedt
2016-08-15 21:00           ` Steven Rostedt
2016-08-15 21:00           ` Steven Rostedt
2016-08-15 22:40         ` James Bottomley
2016-08-15 22:40           ` James Bottomley
2016-08-15 22:40           ` James Bottomley
2016-08-15 22:44       ` James Bottomley
2016-08-15 22:44         ` James Bottomley
2016-08-15 22:44         ` James Bottomley
2016-08-10 17:03     ` Luis R. Rodriguez
2016-08-10 17:03       ` Luis R. Rodriguez
2016-08-10 17:03       ` Luis R. Rodriguez
2016-08-09 16:48   ` Richard Fontana
2016-08-09 16:48     ` Richard Fontana
2016-08-09 16:48     ` Richard Fontana
2016-08-09 16:52   ` Richard Fontana
2016-08-09 16:52     ` Richard Fontana
2016-08-09 16:52     ` Richard Fontana

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20160812155121.GB13315@nazgul.tnic \
    --to=bp@alien8.de \
    --cc=alan@linux.intel.com \
    --cc=ananth@in.ibm.com \
    --cc=ananth@linux.vnet.ibm.com \
    --cc=andrew.cooper3@citrix.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=anil.s.keshavamurthy@intel.com \
    --cc=arnd@arndb.de \
    --cc=benh@kernel.crashing.org \
    --cc=christopher.denicolo@suse.com \
    --cc=ciaran.farrell@suse.com \
    --cc=davem@davemloft.net \
    --cc=david.vrabel@citrix.com \
    --cc=dwmw2@infradead.org \
    --cc=fontana@sharpeleven.org \
    --cc=gnomes@lxorguk.ukuu.org.uk \
    --cc=gregkh@linuxfoundation.org \
    --cc=heiko.carstens@de.ibm.com \
    --cc=hpa@zytor.com \
    --cc=jbaron@akamai.com \
    --cc=jgross@suse.com \
    --cc=keescook@chromium.org \
    --cc=konrad.wilk@oracle.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux@arm.linux.org.uk \
    --cc=luto@amacapital.net \
    --cc=masami.hiramatsu.pt@hitachi.com \
    --cc=mcb30@ipxe.org \
    --cc=mcgrof@kernel.org \
    --cc=mhiramat@kernel.org \
    --cc=ming.lei@canonical.com \
    --cc=mingo@redhat.com \
    --cc=paul.gortmaker@windriver.com \
    --cc=pebolle@tiscali.nl \
    --cc=realmz6@gmail.com \
    --cc=rusty@rustcorp.com.au \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.