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To:     LKML <linux-kernel@vger.kernel.org>
Cc:     apw@canonical.com, joe@perches.com
From:   Zhenzhong Duan <zhenzhong.duan@oracle.com>
Subject: checkpatch error
Organization: Oracle Corporation
Message-ID: <02cc0e89-8b48-14f6-aabe-ec1201df59aa@oracle.com>
Date:   Tue, 8 Oct 2019 12:02:47 +0800
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Hi,

When I run checkpatch.pl with a patch doing reverting operation, it 
reports a false positive error, Should I ignore the error or it's a bug?

0001-Revert-KVM-X86-Fix-setup-the-virt_spin_lock_key-befo.patch
---------------------------------------------------------------
ERROR: Please use git commit description style 'commit <12+ chars of 
sha1> ("<title line>")' - ie: 'commit 090d54bcbc54 ("Revert 
"x86/paravirt: Set up the v'
#14:
The similar change for XEN is in commit 090d54bcbc54 ("Revert

total: 1 errors, 0 warnings, 31 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
       mechanically convert to the typical style using --fix or 
--fix-inplace.


# cat 0001-Revert-KVM-X86-Fix-setup-the-virt_spin_lock_key-befo.patch
 From 5d90690ba0476cab223f5e1d13955858b9c91623 Mon Sep 17 00:00:00 2001
From: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Date: Mon, 7 Oct 2019 09:20:58 +0800
Subject: [PATCH v5 1/5] Revert "KVM: X86: Fix setup the virt_spin_lock_key
  before static key get initialized"

This reverts commit 34226b6b70980a8f81fff3c09a2c889f77edeeff.

Commit 8990cac6e5ea ("x86/jump_label: Initialize static branching
early") adds jump_label_init() call in setup_arch() to make static
keys initialized early, so we could use the original simpler code
again.

The similar change for XEN is in commit 090d54bcbc54 ("Revert
"x86/paravirt: Set up the virt_spin_lock_key after static keys get
initialized"")
...


Thanks

Zhenzhong