linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 08/35] powerpc: Force inlining of cpu_has_feature() to avoid build failure
Date: Mon,  5 Apr 2021 10:53:43 +0200	[thread overview]
Message-ID: <20210405085019.137640199@linuxfoundation.org> (raw)
In-Reply-To: <20210405085018.871387942@linuxfoundation.org>

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit eed5fae00593ab9d261a0c1ffc1bdb786a87a55a ]

The code relies on constant folding of cpu_has_feature() based
on possible and always true values as defined per
CPU_FTRS_ALWAYS and CPU_FTRS_POSSIBLE.

Build failure is encountered with for instance
book3e_all_defconfig on kisskb in the AMDGPU driver which uses
cpu_has_feature(CPU_FTR_VSX_COMP) to decide whether calling
kernel_enable_vsx() or not.

The failure is due to cpu_has_feature() not being inlined with
that configuration with gcc 4.9.

In the same way as commit acdad8fb4a15 ("powerpc: Force inlining of
mmu_has_feature to fix build failure"), for inlining of
cpu_has_feature().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b231dfa040ce4cc37f702f5c3a595fdeabfe0462.1615378209.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/cpu_has_feature.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/cpu_has_feature.h b/arch/powerpc/include/asm/cpu_has_feature.h
index 6e834caa3720..7b10b3ef7739 100644
--- a/arch/powerpc/include/asm/cpu_has_feature.h
+++ b/arch/powerpc/include/asm/cpu_has_feature.h
@@ -6,7 +6,7 @@
 #include <linux/bug.h>
 #include <asm/cputable.h>
 
-static inline bool early_cpu_has_feature(unsigned long feature)
+static __always_inline bool early_cpu_has_feature(unsigned long feature)
 {
 	return !!((CPU_FTRS_ALWAYS & feature) ||
 		  (CPU_FTRS_POSSIBLE & cur_cpu_spec->cpu_features & feature));
@@ -45,7 +45,7 @@ static __always_inline bool cpu_has_feature(unsigned long feature)
 	return static_branch_likely(&cpu_feature_keys[i]);
 }
 #else
-static inline bool cpu_has_feature(unsigned long feature)
+static __always_inline bool cpu_has_feature(unsigned long feature)
 {
 	return early_cpu_has_feature(feature);
 }
-- 
2.30.1




  parent reply	other threads:[~2021-04-05  8:58 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05  8:53 [PATCH 4.9 00/35] 4.9.265-rc1 review Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 01/35] selinux: vsock: Set SID for socket returned by accept() Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 02/35] ipv6: weaken the v4mapped source check Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 03/35] ext4: fix bh ref count on error paths Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 04/35] rpc: fix NULL dereference on kmalloc failure Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 05/35] ASoC: rt5640: Fix dac- and adc- vol-tlv values being off by a factor of 10 Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 06/35] ASoC: rt5651: " Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 07/35] ASoC: sgtl5000: set DAP_AVC_CTRL register to correct default value on probe Greg Kroah-Hartman
2021-04-05  8:53 ` Greg Kroah-Hartman [this message]
2021-04-05  8:53 ` [PATCH 4.9 09/35] vhost: Fix vhost_vq_reset() Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 10/35] scsi: st: Fix a use after free in st_open() Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 11/35] scsi: qla2xxx: Fix broken #endif placement Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 12/35] staging: comedi: cb_pcidas: fix request_irq() warn Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 13/35] staging: comedi: cb_pcidas64: " Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 14/35] ASoC: rt5659: Update MCLK rate in set_sysclk() Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 15/35] ext4: do not iput inode under running transaction in ext4_rename() Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 16/35] appletalk: Fix skb allocation size in loopback case Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 17/35] net: wan/lmc: unregister device when no matching device is found Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 18/35] bpf: Remove MTU check in __bpf_skb_max_len Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 19/35] ALSA: usb-audio: Apply sample rate quirk to Logitech Connect Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 20/35] ALSA: hda/realtek: call alc_update_headset_mode() in hp_automute_hook Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 21/35] tracing: Fix stack trace event size Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 22/35] mm: fix race by making init_zero_pfn() early_initcall Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 23/35] reiserfs: update reiserfs_xattrs_initialized() condition Greg Kroah-Hartman
2021-04-05  8:53 ` [PATCH 4.9 24/35] pinctrl: rockchip: fix restore error in resume Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 25/35] extcon: Fix error handling in extcon_dev_register Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 26/35] firewire: nosy: Fix a use-after-free bug in nosy_ioctl() Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 27/35] USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 28/35] usb: xhci-mtk: fix broken streams issue on 0.96 xHCI Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 29/35] cdc-acm: fix BREAK rx code path adding necessary calls Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 30/35] USB: cdc-acm: downgrade message to debug Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 31/35] USB: cdc-acm: fix use-after-free after probe failure Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 32/35] staging: rtl8192e: Fix incorrect source in memcpy() Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 33/35] staging: rtl8192e: Change state information from u16 to u8 Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 34/35] audit: fix a net reference leak in audit_send_reply() Greg Kroah-Hartman
2021-04-05  8:54 ` [PATCH 4.9 35/35] audit: fix a net reference leak in audit_list_rules_send() Greg Kroah-Hartman
2021-04-05 17:27 ` [PATCH 4.9 00/35] 4.9.265-rc1 review Florian Fainelli
2021-04-05 17:56 ` Guenter Roeck
2021-04-05 23:51   ` Guenter Roeck
2021-04-06  2:22     ` Guenter Roeck
2021-04-06  2:36       ` Guenter Roeck
2021-04-07 10:18         ` Greg Kroah-Hartman
2021-04-06  0:29 ` Shuah Khan
2021-04-06  7:40 ` Naresh Kamboju

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=20210405085019.137640199@linuxfoundation.org \
    --to=gregkh@linuxfoundation.org \
    --cc=christophe.leroy@csgroup.eu \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mpe@ellerman.id.au \
    --cc=sashal@kernel.org \
    --cc=stable@vger.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).