All of lore.kernel.org
 help / color / mirror / Atom feed
From: Borislav Petkov <bp@alien8.de>
To: Tony Luck <tony.luck@intel.com>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v1 09/12] x86/mce: Mark mce_read_aux() noinstr
Date: Wed,  8 Dec 2021 12:13:40 +0100	[thread overview]
Message-ID: <20211208111343.8130-10-bp@alien8.de> (raw)
In-Reply-To: <20211208111343.8130-1-bp@alien8.de>

From: Borislav Petkov <bp@suse.de>

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0x681: call to mce_read_aux() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/cpu/mce/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index e86334925797..eafa7f350fa2 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -648,7 +648,7 @@ static struct notifier_block mce_default_nb = {
 /*
  * Read ADDR and MISC registers.
  */
-static void mce_read_aux(struct mce *m, int i)
+static noinstr void mce_read_aux(struct mce *m, int i)
 {
 	if (m->status & MCI_STATUS_MISCV)
 		m->misc = mce_rdmsrl(mca_msr_reg(i, MCA_MISC));
-- 
2.29.2


  parent reply	other threads:[~2021-12-08 11:14 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-08 11:13 [PATCH v1 00/12] x86/mce: Correct the noinstr annotation Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 01/12] x86/mce: Do not use memset to clear the banks bitmaps Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 02/12] x86/mce: Remove function-local cpus variables Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 03/12] x86/mce: Use mce_rdmsrl() in severity checking code Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 04/12] x86/mce: Remove noinstr annotation from mce_setup() Borislav Petkov
2021-12-09 12:16   ` Peter Zijlstra
2021-12-10 14:18     ` Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 05/12] x86/mce: Allow instrumentation during task work queueing Borislav Petkov
2021-12-09 12:17   ` Peter Zijlstra
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 06/12] x86/mce: Prevent severity computation from being instrumented Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 07/12] x86/mce: Mark mce_panic() noinstr Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 08/12] x86/mce: Mark mce_end() noinstr Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` Borislav Petkov [this message]
2021-12-13 17:35   ` [tip: ras/core] x86/mce: Mark mce_read_aux() noinstr tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 10/12] x86/mce: Move the tainting outside of the noinstr region Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 11/12] x86/mce: Mark mce_timed_out() noinstr Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-08 11:13 ` [PATCH v1 12/12] x86/mce: Mark mce_start() noinstr Borislav Petkov
2021-12-13 17:35   ` [tip: ras/core] " tip-bot2 for Borislav Petkov
2021-12-09 12:19 ` [PATCH v1 00/12] x86/mce: Correct the noinstr annotation Peter Zijlstra

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=20211208111343.8130-10-bp@alien8.de \
    --to=bp@alien8.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=tony.luck@intel.com \
    --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.