From: Arnd Bergmann <arnd@arndb.de>
To: Paul Burton <paul.burton@mips.com>
Cc: Sasha Levin <sashal@kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
James Hogan <jhogan@kernel.org>,
Ralf Baechle <ralf@linux-mips.org>,
"linux-mips@linux-mips.org" <linux-mips@linux-mips.org>
Subject: Re: [PATCH AUTOSEL 4.14 33/46] MIPS: Workaround GCC __builtin_unreachable reordering bug
Date: Fri, 26 Oct 2018 09:36:30 +0200 [thread overview]
Message-ID: <CAK8P3a2eOo=9Pv4XmyX30_PYoRpp_f6rXQn+pk9z21wMvE84Ag@mail.gmail.com> (raw)
In-Reply-To: <20181025195254.q55noj2rdh5vyw5s@pburton-laptop>
On 10/25/18, Paul Burton <paul.burton@mips.com> wrote:
> On Thu, Oct 25, 2018 at 10:10:40AM -0400, Sasha Levin wrote:
>> From: Paul Burton <paul.burton@mips.com>
>> ---
>> arch/mips/Kconfig | 1 +
>> arch/mips/include/asm/compiler.h | 35 ++++++++++++++++++++++++++++++++
>> 2 files changed, 36 insertions(+)
>
> In principle I'm fine with backporting this - it does fix broken builds.
>
> It's only going to be of any use though if you also backport commit
> 04f264d3a8b0 ("compiler.h: Allow arch-specific asm/compiler.h"). I'd
> recommend backporting both or neither.
>
> In practice I think it's unlikely anyone will need a microMIPS kernel &
> be tied to the particular versions affected by the bug this patch fixed,
> so I don't think it's a problem to backport neither.
I think the current practice of the stable kernel these days is to take
both patches in this case: They fix an actual bug in the mainline kernel,
and it seems unlikely enough that they cause a regression if backported,
so putting them into 4.14 has more advantages than disadvantages.
Arnd
next prev parent reply other threads:[~2018-10-26 7:36 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 14:10 [PATCH AUTOSEL 4.14 01/46] iwlwifi: mvm: check for short GI only for OFDM Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 02/46] iwlwifi: dbg: allow wrt collection before ALIVE Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 03/46] iwlwifi: fix the ALIVE notification layout Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 04/46] x86/power: Fix some ordering bugs in __restore_processor_context() Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 05/46] tools/testing/nvdimm: unit test clear-error commands Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 06/46] usbip: vhci_hcd: update 'status' file header and format Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 07/46] scsi: aacraid: address UBSAN warning regression Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 08/46] IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 09/46] IB/rxe: put the pool on allocation failure Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 10/46] s390/qeth: fix error handling in adapter command callbacks Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 11/46] net/mlx5: Fix mlx5_get_vector_affinity function Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 12/46] powerpc/pseries: Add empty update_numa_cpu_lookup_table() for NUMA=n Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 13/46] dm integrity: fail early if required HMAC key is not available Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 14/46] net: phy: realtek: Use the dummy stubs for MMD register access for rtl8211b Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 15/46] net: phy: Add general dummy stubs for MMD register access Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 16/46] net/mlx5e: Refine ets validation function Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 17/46] scsi: qla2xxx: Avoid double completion of abort command Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 18/46] kbuild: set no-integrated-as before incl. arch Makefile Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 19/46] IB/mlx5: Avoid passing an invalid QP type to firmware Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 20/46] ARM: tegra: Fix ULPI regression on Tegra20 Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 21/46] l2tp: remove configurable payload offset Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 22/46] cifs: Use ULL suffix for 64-bit constant Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 23/46] test_bpf: Fix testing with CONFIG_BPF_JIT_ALWAYS_ON=y on other arches Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 24/46] KVM: x86: Update the exit_qualification access bits while walking an address Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 25/46] sparc64: Fix regression in pmdp_invalidate() Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 26/46] tpm: move the delay_msec increment after sleep in tpm_transmit() Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 27/46] bpf: sockmap, map_release does not hold refcnt for pinned maps Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 28/46] tpm: tpm_crb: relinquish locality on error path Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 29/46] xen-netfront: Update features after registering netdev Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 30/46] xen-netfront: Fix mismatched rtnl_unlock Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 31/46] IB/usnic: Update with bug fixes from core code Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 32/46] mmc: dw_mmc-rockchip: correct property names in debug Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 33/46] MIPS: Workaround GCC __builtin_unreachable reordering bug Sasha Levin
2018-10-25 19:52 ` Paul Burton
2018-10-26 7:36 ` Arnd Bergmann [this message]
2018-10-29 13:36 ` Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 34/46] lan78xx: Don't reset the interface on open Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 35/46] enic: do not overwrite error code Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 36/46] iio: buffer: fix the function signature to match implementation Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 37/46] selftests/powerpc: Add ptrace hw breakpoint test Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 38/46] scsi: ibmvfc: Avoid unnecessary port relogin Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 39/46] scsi: sd: Remember that READ CAPACITY(16) succeeded Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 40/46] btrfs: quota: Set rescan progress to (u64)-1 if we hit last leaf Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 41/46] net: phy: phylink: Don't release NULL GPIO Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 42/46] x86/paravirt: Fix some warning messages Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 43/46] net: stmmac: mark PM functions as __maybe_unused Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 44/46] kconfig: fix the rule of mainmenu_stmt symbol Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 45/46] libertas: call into generic suspend code before turning off power Sasha Levin
2018-10-25 14:10 ` [PATCH AUTOSEL 4.14 46/46] perf tests: Fix indexing when invoking subtests Sasha Levin
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