netdev - Re: [net-next PATCH v9 1/6] net: phy: pass PHY driver to .match_phy

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Message-ID: <202505131337.ZjnU5fK1-lkp@intel.com>
Date: Tue, 13 May 2025 14:09:12 +0800
From: kernel test robot <lkp@...el.com>
To: Christian Marangi <ansuelsmth@...il.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Marek Behún <kabel@...nel.org>,
	Andrei Botila <andrei.botila@....nxp.com>,
	Sabrina Dubroca <sd@...asysnail.net>,
	Michael Klein <michael@...sekall.de>,
	Daniel Golle <daniel@...rotopia.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Subject: Re: [net-next PATCH v9 1/6] net: phy: pass PHY driver to
 .match_phy_device OP

Hi Christian,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Christian-Marangi/net-phy-pass-PHY-driver-to-match_phy_device-OP/20250512-024253
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250511183933.3749017-2-ansuelsmth%40gmail.com
patch subject: [net-next PATCH v9 1/6] net: phy: pass PHY driver to .match_phy_device OP
config: x86_64-randconfig-r073-20250513 (https://download.01.org/0day-ci/archive/20250513/202505131337.ZjnU5fK1-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250513/202505131337.ZjnU5fK1-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505131337.ZjnU5fK1-lkp@intel.com/

All errors (new ones prefixed by >>):

   ***
   *** Rust bindings generator 'bindgen' < 0.69.5 together with libclang >= 19.1
   *** may not work due to a bug (https://github.com/rust-lang/rust-bindgen/pull/2824),
   *** unless patched (like Debian's).
   ***   Your bindgen version:  0.65.1
   ***   Your libclang version: 20.1.2
   ***
   ***
   *** Please see Documentation/rust/quick-start.rst for details
   *** on how to set up the Rust support.
   ***
>> error[E0308]: mismatched types
   --> rust/kernel/net/phy.rs:527:18
   |
   527 |             Some(Adapter::<T>::match_phy_device_callback)
   |             ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ incorrect number of function parameters
   |             |
   |             arguments to this enum variant are incorrect
   |
   = note: expected fn pointer `unsafe extern "C" fn(*mut bindings::phy_device, *const phy_driver) -> _`
   found fn item `unsafe extern "C" fn(*mut bindings::phy_device) -> _ {phy::Adapter::<T>::match_phy_device_callback}`
   help: the type constructed contains `unsafe extern "C" fn(*mut bindings::phy_device) -> i32 {phy::Adapter::<T>::match_phy_device_callback}` due to the type of the argument passed
   --> rust/kernel/net/phy.rs:527:13
   |
   527 |             Some(Adapter::<T>::match_phy_device_callback)
   |             ^^^^^---------------------------------------^
   |                  |
   |                  this argument influences the type of `Some`
   note: tuple variant defined here
   --> /opt/cross/rustc-1.78.0-bindgen-0.65.1/rustup/toolchains/1.78.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:580:5
   |
   580 |     Some(#[stable(feature = "rust1", since = "1.0.0")] T),
   |     ^^^^

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki