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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
	"Peter Zijlstra (Intel)" <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 17/32] x86: __always_inline __{rd,wr}msr()
Date: Fri,  5 Feb 2021 15:07:32 +0100	[thread overview]
Message-ID: <20210205140653.071276135@linuxfoundation.org> (raw)
In-Reply-To: <20210205140652.348864025@linuxfoundation.org>

From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit 66a425011c61e71560c234492d204e83cfb73d1d ]

When the compiler choses to not inline the trivial MSR helpers:

  vmlinux.o: warning: objtool: __sev_es_nmi_complete()+0xce: call to __wrmsr.constprop.14() leaves .noinstr.text section

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/X/bf3gV+BW7kGEsB@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/msr.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 86f20d520a079..b40d0295d8129 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -88,7 +88,7 @@ static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {}
  * think of extending them - you will be slapped with a stinking trout or a frozen
  * shark will reach you, wherever you are! You've been warned.
  */
-static inline unsigned long long notrace __rdmsr(unsigned int msr)
+static __always_inline unsigned long long __rdmsr(unsigned int msr)
 {
 	DECLARE_ARGS(val, low, high);
 
@@ -100,7 +100,7 @@ static inline unsigned long long notrace __rdmsr(unsigned int msr)
 	return EAX_EDX_VAL(val, low, high);
 }
 
-static inline void notrace __wrmsr(unsigned int msr, u32 low, u32 high)
+static __always_inline void __wrmsr(unsigned int msr, u32 low, u32 high)
 {
 	asm volatile("1: wrmsr\n"
 		     "2:\n"
-- 
2.27.0




  parent reply	other threads:[~2021-02-05 21:22 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-05 14:07 [PATCH 5.4 00/32] 5.4.96-rc1 review Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 01/32] net: dsa: bcm_sf2: put device node before return Greg Kroah-Hartman
2021-02-07  9:25   ` Pavel Machek
2021-02-05 14:07 ` [PATCH 5.4 02/32] net: switchdev: dont set port_obj_info->handled true when -EOPNOTSUPP Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 03/32] ibmvnic: Ensure that CRQ entry read are correctly ordered Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 04/32] Revert "Revert "block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT"" Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 05/32] ACPI: thermal: Do not call acpi_thermal_check() directly Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 06/32] arm64: Fix kernel address detection of __is_lm_address() Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 07/32] arm64: Do not pass tagged addresses to __is_lm_address() Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 08/32] tcp: make TCP_USER_TIMEOUT accurate for zero window probes Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 09/32] btrfs: backref, only collect file extent items matching backref offset Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 10/32] btrfs: backref, dont add refs from shared block when resolving normal backref Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 11/32] btrfs: backref, only search backref entries from leaves of the same root Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 12/32] btrfs: backref, use correct count to resolve normal data refs Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 13/32] net_sched: gen_estimator: support large ewma log Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 14/32] phy: cpcap-usb: Fix warning for missing regulator_disable Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 15/32] platform/x86: touchscreen_dmi: Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 16/32] platform/x86: intel-vbtn: Support for tablet mode on Dell Inspiron 7352 Greg Kroah-Hartman
2021-02-05 14:07 ` Greg Kroah-Hartman [this message]
2021-02-05 14:07 ` [PATCH 5.4 18/32] scsi: scsi_transport_srp: Dont block target in failfast state Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 19/32] scsi: libfc: Avoid invoking response handler twice if ep is already completed Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 20/32] scsi: fnic: Fix memleak in vnic_dev_init_devcmd2 Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 21/32] ASoC: SOF: Intel: hda: Resume codec to do jack detection Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 22/32] mac80211: fix fast-rx encryption check Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 23/32] scsi: ibmvfc: Set default timeout to avoid crash during migration Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 24/32] ALSA: hda: Add Cometlake-R PCI ID Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 25/32] udf: fix the problem that the disc content is not displayed Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 26/32] nvme: check the PRINFO bit before deciding the host buffer length Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 27/32] selftests/powerpc: Only test lwm/stmw on big endian Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 28/32] drm/amd/display: Update dram_clock_change_latency for DCN2.1 Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 29/32] drm/amd/display: Change function decide_dp_link_settings to avoid infinite looping Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 30/32] objtool: Dont fail on missing symbol table Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 31/32] kthread: Extract KTHREAD_IS_PER_CPU Greg Kroah-Hartman
2021-02-05 14:07 ` [PATCH 5.4 32/32] workqueue: Restrict affinity change to rescuer Greg Kroah-Hartman
2021-02-05 20:58 ` [PATCH 5.4 00/32] 5.4.96-rc1 review Igor
2021-02-05 21:16 ` Florian Fainelli
2021-02-07 14:36   ` Greg Kroah-Hartman
2021-02-06 14:27 ` Naresh Kamboju
2021-02-06 16:02 ` Guenter Roeck
2021-02-07 15:34 ` Jon Hunter

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