From: Jose Javier Rodriguez Barbarin <dev-josejavier.rodriguez@duagon.com>
To: andy@kernel.org, krzk@kernel.org, linus.walleij@linaro.org,
nathan@kernel.org, nsc@kernel.org, gregkh@linuxfoundation.org,
bleung@chromium.org, heikki.krogerus@linux.intel.com,
abhishekpandit@chromium.org, masahiroy@kernel.org,
legion@kernel.org, hughd@google.com
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
Jose Javier Rodriguez Barbarin
<dev-josejavier.rodriguez@duagon.com>
Subject: [PATCH v2 0/1] mcb: Add modpost support for processing MODULE_DEVICE_TABLE
Date: Mon, 1 Dec 2025 17:07:19 +0100 [thread overview]
Message-ID: <20251201160720.28580-1-dev-josejavier.rodriguez@duagon.com> (raw)
During the process of update of one of the device drivers that are part of
mcb bus (gpio-menz127.c), Krzysztof from GPIO subsystem asked me
why I was adding new MODULE_ALIAS when I also added the same new
information on MODULE_DEVICE_TABLE.
You can find the messages here:
https://lore.kernel.org/linux-gpio/80a20b13-7c6a-4483-9741-568424f957ef@kernel.org/
After a deeper analysis, I came across that the mcb_table_id defined inside
MODULE_DEVICE_TABLE on all device drivers was being ignored as modpost was
not processing the mcb MODULE_DEVICE_TABLE entries. For this reason, former
contributors were using MODULE_ALIAS for enabling mcb to autoload the
device drivers.
My proposal with these changes is to complete the mcb bus by adding
modpost support for processing mcb MODULE_DEVICE_TABLE.
Once this patch is merged, I will send patches one by one for removing
MODULE_ALIAS from all device drivers as they are no longer needed
(as Andy Shevchenko suggested in v1 review).
---
Changes in v2:
- Place "mcb" before "mei" to follow the order.
- Send changes for mcb drivers in a per-driver basis.
Jose Javier Rodriguez Barbarin (1):
mcb: Add missing modpost build support
scripts/mod/devicetable-offsets.c | 3 +++
scripts/mod/file2alias.c | 9 +++++++++
2 files changed, 12 insertions(+)
--
2.51.1
next reply other threads:[~2025-12-01 16:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-01 16:07 Jose Javier Rodriguez Barbarin [this message]
2025-12-01 16:07 ` [PATCH v2 1/1] mcb: Add missing modpost build support Jose Javier Rodriguez Barbarin
2025-12-01 18:02 ` Andy Shevchenko
2025-12-01 18:04 ` [PATCH v2 0/1] mcb: Add modpost support for processing MODULE_DEVICE_TABLE Andy Shevchenko
2025-12-01 18:26 ` Jose Javier Rodriguez Barbarin
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