From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, linux-kernel@vger.kernel.org,
"Michael S. Tsirkin" <mst@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Arnd Bergmann <arnd@arndb.de>, David Ahern <dsahern@gmail.com>,
David Laight <David.Laight@ACULAB.COM>,
Elena Reshetova <elena.reshetova@intel.com>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Jiri Slaby <jslaby@suse.cz>, Joe Perches <joe@perches.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Konstantin Khlebnikov <koct9i@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Matthew Wilcox <mawilcox@microsoft.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Randy Dunlap <rdunlap@infradead.org>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Wang Nan <wangnan0@huawei.com>,
damian <damian.tometzki@icloud.com>
Subject: Re: [PATCH 00/29] objtool sync up for the stable 4.9.y tree
Date: Mon, 4 Jun 2018 09:59:02 -0500 [thread overview]
Message-ID: <20180604145809.3uqin3jvooefd2bg@treble> (raw)
In-Reply-To: <20180603122652.17453-1-gregkh@linuxfoundation.org>
On Sun, Jun 03, 2018 at 02:26:23PM +0200, Greg Kroah-Hartman wrote:
> There are pros and cons of dealing with tools in the kernel directory.
> The pros are the fact that development happens fast, and new features
> can be added to the kernel and the tools at the same times. The cons
> are when dealing with backported kernel patches, it can be necessary to
> backport parts of the tool changes as well.
>
> For 4.9.y so far, we have backported individual patches. That quickly
> breaks down when there are minor differences between how backports were
> handled, so grabbing 40+ patch long series can be difficult, not
> impossible, but really frustrating to attempt.
>
> To help mitigate this mess, this patch series works to sync up the
> objtool code with the version that is currently in 4.14.47. This
> required a number of objtool old patches to be backported, a single big
> "sync the world" patch, and a lot of include file updates to get
> everything all working properly as well as some minor fixes for build
> warnings.
>
> And at the end of this series, is a set of backported objtool patches
> for gcc-8 that was the main reason this whole patch series was created.
> They applied just fine, being the identical version that goes into the
> 4.14.y stable tree, so it feels like the backport was successful.
>
> This has survivied my limited testing, and as the codebase is identical
> to 4.14.47, I'm pretty comfortable dropping this big change in here in
> 4.9.y. Hopefully all goes well...
>
> If anyone has any objections to this patch series, or finds anything I
> messed up on, please let me know.
Thanks Greg. Looks good to me.
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
--
Josh
prev parent reply other threads:[~2018-06-04 14:59 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-03 12:26 [PATCH 00/29] objtool sync up for the stable 4.9.y tree Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 01/29] objtool: Improve detection of BUG() and other dead ends Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 02/29] objtool: Move checking code to check.c Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 03/29] tools lib: Add for_each_clear_bit macro Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 04/29] tools: add more bitmap functions Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 05/29] tools: enable endian checks for all sparse builds Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 06/29] tools include: Introduce linux/compiler-gcc.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 07/29] radix tree test suite: Remove types.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 08/29] tools include: Adopt __compiletime_error Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 09/29] tools include: Introduce atomic_cmpxchg_{relaxed,release}() Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 10/29] tools include: Add UINT_MAX def to kernel.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 11/29] tools include: Adopt kernel's refcount.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 12/29] perf tools: Force fixdep compilation at the start of the build Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 13/29] perf tools: Move headers check into bash script Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 14/29] tools include uapi: Grab copies of stat.h and fcntl.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 15/29] tools include: Introduce linux/bug.h, from the kernel sources Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 16/29] tools include: Adopt __same_type() and __must_be_array() from the kernel Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 17/29] tools include: Move ARRAY_SIZE() to linux/kernel.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 18/29] tools include: Drop ARRAY_SIZE() definition from linux/hashtable.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 19/29] tools include: Include missing headers for fls() and types in linux/log2.h Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 20/29] objtool: sync up with the 4.14.47 version of objtool Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 21/29] objtool: Support GCC 8's cold subfunctions Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 22/29] objtool: Support GCC 8 switch tables Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 23/29] objtool: Detect RIP-relative switch table references Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 24/29] objtool: Detect RIP-relative switch table references, part 2 Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 25/29] objtool: Fix "noreturn" detection for recursive sibling calls Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 26/29] objtool, x86: Add several functions and files to the objtool whitelist Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 27/29] perf/tools: header file sync up Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 28/29] objtool: header file sync-up Greg Kroah-Hartman
2018-06-03 12:26 ` [PATCH 29/29] x86/xen: Add unwind hint annotations to xen_setup_gdt Greg Kroah-Hartman
2018-06-04 14:59 ` Josh Poimboeuf [this message]
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