linux-kernel - [PATCH v2 26/27] locking/atomic: docs: Add atomic operations to the driver basic API documentation

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Date:   Mon,  5 Jun 2023 08:01:23 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     linux-kernel@...r.kernel.org
Cc:     akiyks@...il.com, boqun.feng@...il.com, corbet@....net,
        keescook@...omium.org, linux@...linux.org.uk,
        linux-doc@...r.kernel.org, mark.rutland@....com,
        mchehab@...nel.org, paulmck@...nel.org, peterz@...radead.org,
        rdunlap@...radead.org, sstabellini@...nel.org, will@...nel.org
Subject: [PATCH v2 26/27] locking/atomic: docs: Add atomic operations to the driver basic API documentation

From: "Paul E. McKenney" <paulmck@...nel.org>

Add the generated atomic headers to driver-api/basics.rst in order to
provide documentation for the Linux kernel's atomic operations.

At the same time, dtop the x86 atomic header, which provides kerneldoc
comments for some arch_atomic*_*() operations. The arch_atomic*_*()
operations are now purely an implenentation detail of the
raw_atomic*_*() ops, and outside of implementing the atomics, code
should use the raw_atomic*_*() forms.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
[Mark: add atomic-{instrumented,long}.h, update commit message]
Signed-off-by: Mark Rutland <mark.rutland@....com>
Reviewed-by: Kees Cook <keescook@...omium.org>
Cc: <linux-doc@...r.kernel.org>
Cc: Akira Yokosawa <akiyks@...il.com>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Jonathan Corbet <corbet@....net>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Will Deacon <will@...nel.org>
---
 Documentation/driver-api/basics.rst | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/driver-api/basics.rst b/Documentation/driver-api/basics.rst
index 4b4d8e28d3be4..7671b531ba1a8 100644
--- a/Documentation/driver-api/basics.rst
+++ b/Documentation/driver-api/basics.rst
@@ -84,7 +84,13 @@ Reference counting
 Atomics
 -------
 
-.. kernel-doc:: arch/x86/include/asm/atomic.h
+.. kernel-doc:: include/linux/atomic/atomic-instrumented.h
+   :internal:
+
+.. kernel-doc:: include/linux/atomic/atomic-arch-fallback.h
+   :internal:
+
+.. kernel-doc:: include/linux/atomic/atomic-long.h
    :internal:
 
 Kernel objects manipulation
-- 
2.30.2