linux-kernel - [PATCH RESEND 0/1] rust: introduce declare

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Message-ID: <20240920024920.215842-1-toolmanp@tlmp.cc>
Date: Fri, 20 Sep 2024 10:49:18 +0800
From: Yiyang Wu <toolmanp@...p.cc>
To: rust-for-linux@...r.kernel.org
Cc: gregkh@...uxfoundation.org,
	xiang@...nel.org,
	gary@...yguo.net,
	linux-erofs@...ts.ozlabs.org,
	linux-fsdevel@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH RESEND 0/1] rust: introduce declare_err! autogeneration

Currently, the error.rs's errno import is done manually by copying the
comments from include/linux/errno.h and uses the declare_err! to wrap
the constant errno.

However, this reduces the readability and increases difficulty of
maintaining the error.rs if the errno list is growing too long or
or if errno.h gets updated for new semantics.

This patchset solves this issues for good by introducing a rule
to generate errno_generated.rs by seding the errno.h and
including the generated file in the error.rs.

This patch is based on the rust-next branch.

Yiyang Wu (1):
  rust: error: auto-generate error declarations

 rust/.gitignore      |  1 +
 rust/Makefile        | 14 ++++++++++-
 rust/kernel/error.rs | 58 +++-----------------------------------------
 3 files changed, 18 insertions(+), 55 deletions(-)

-- 
2.46.0