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Date:   Sat, 19 Sep 2020 21:02:56 +0200
From:   Andrew Lunn <>
To:     netdev <>
Cc:     David Miller <>,
        Jakub Kicinski <>,
        Masahiro Yamada <>,
        Michal Marek <>,,,
        Andrew Lunn <>
Subject: [PATCH RFC/RFT 0/2] W=1 by default for Ethernet PHY subsystem

There is a movement to make the code base compile clean with W=1. Some
subsystems are already clean. In order to keep them clean, we need
developers to build new code with W=1 by default in these subsystems.

This patchset refactors the core Makefile warning code to allow the
additional warnings W=1 adds available to any Makefile. The Ethernet
PHY subsystem Makefiles then make use of this to make W=1 the default
for this subsystem.

RFT since i've only tested with x86 and arm with a modern gcc. Is the
code really clean for older compilers? For clang?

Andrew Lunn (2):
  scripts: Makefile.extrawarn: Add W=1 warnings to a symbol
  net: phylib: Enable W=1 by default

 drivers/net/mdio/Makefile  |  3 +++
 drivers/net/pcs/Makefile   |  3 +++
 drivers/net/phy/Makefile   |  3 +++
 scripts/Makefile.extrawarn | 33 ++++++++++++++++++---------------
 4 files changed, 27 insertions(+), 15 deletions(-)


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