Linux GPIO subsystem development
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From: Raag Jadav <raag.jadav@intel.com>
To: kees@kernel.org, broonie@kernel.org, gregkh@linuxfoundation.org,
	arnd@arndb.de, andriy.shevchenko@linux.intel.com,
	hansg@kernel.org, ilpo.jarvinen@linux.intel.com,
	linus.walleij@linaro.org, brgl@bgdev.pl
Cc: platform-driver-x86@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org, Raag Jadav <raag.jadav@intel.com>
Subject: [PATCH v2] mod_devicetable: Bump auxiliary_device_id name size
Date: Thu,  6 Nov 2025 10:58:38 +0530	[thread overview]
Message-ID: <20251106052838.433673-1-raag.jadav@intel.com> (raw)

We have an upcoming driver named "intel_ehl_pse_io". This creates an
auxiliary child device for it's GPIO sub-functionality, which matches
against "intel_ehl_pse_io.gpio-elkhartlake" and overshoots the current
maximum limit of 32 bytes for auxiliary device id string. Bump the size
to 40 bytes to satisfy such cases.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
---
v2: Describe the use case (Greg, Andy)

Triggered by [1].

[1] https://lore.kernel.org/r/aQSwWLVKH_3TthTW@smile.fi.intel.com

 include/linux/mod_devicetable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 6077972e8b45..24eb5a88a5c5 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -867,7 +867,7 @@ struct mhi_device_id {
 	kernel_ulong_t driver_data;
 };
 
-#define AUXILIARY_NAME_SIZE 32
+#define AUXILIARY_NAME_SIZE 40
 #define AUXILIARY_MODULE_PREFIX "auxiliary:"
 
 struct auxiliary_device_id {
-- 
2.34.1


             reply	other threads:[~2025-11-06  5:29 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-06  5:28 Raag Jadav [this message]
2025-11-06  7:40 ` [PATCH v2] mod_devicetable: Bump auxiliary_device_id name size Andy Shevchenko
2025-11-06  7:58   ` Raag Jadav
2025-11-06  8:05     ` Andy Shevchenko

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