linux-kernel - checkpatch doesn't detect "empty" Subjects

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Message-ID: <1a1126467214c348c5d6ed16c17df82a867a3070.camel@mailbox.org>
Date: Mon, 19 May 2025 13:53:35 +0200
From: Philipp Stanner <phasta@...lbox.org>
To: Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>, 
 Dwaipayan Ray <dwaipayanray1@...il.com>, Lukas Bulwahn
 <lukas.bulwahn@...il.com>
Cc: linux-kernel@...r.kernel.org
Subject: checkpatch doesn't detect "empty" Subjects

Hi,

I just accidentally sent an empty-subject patch series [1]. Checkpatch
didn't detect that problem.

That's the relevant patch section:

====

>From fd169d030319dcf2221eaf9cac9e79760c989ff7 Mon Sep 17 00:00:00 2001
From: Philipp Stanner <phasta@...nel.org>
Date: Mon, 19 May 2025 13:27:46 +0200
Subject: [PATCH v3 0/6]
PCI: Remove hybrid-devres region requests

Changes in v3:
  - Adjust wording for Documentation patch (Randy, Alok)
  - Apply Sathyanarayanan's RBs.

Changes in v2:
  - Drop patch for removing forgotten header. Patch is unrelated. Will
    resend seperately. (Andy)
  - Make docu patch headline "Documentation/driver-api:". There seems to
    be no canonical way, but this style is quite frequent. (Andy)
  - Apply Andy's RBs where applicable.

Howdy,

the great day has finally arrived, I managed to get rid of one of the


====


(I messed that up in copy pasting. So the BLURP was missing and a line
break separated the actual subject line)

Just for your information, in case someone thinks that should be
checked by the script. I can't fix it, I've got no clue of that
scripting language.

Thank you
Philipp


[1] https://lore.kernel.org/linux-pci/6e46fbe01199d420dc2c9f6c5bd564ea45b0a0e9.camel@mailbox.org/