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From: Marco Elver <elver@google.com>
To: elver@google.com
Cc: "David S. Miller" <davem@davemloft.net>,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
	 "Paul E. McKenney" <paulmck@kernel.org>,
	Alexander Potapenko <glider@google.com>,
	Arnd Bergmann <arnd@arndb.de>,
	 Bart Van Assche <bvanassche@acm.org>,
	Bill Wendling <morbo@google.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	 Dmitry Vyukov <dvyukov@google.com>,
	Eric Dumazet <edumazet@google.com>,
	 Frederic Weisbecker <frederic@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	 Herbert Xu <herbert@gondor.apana.org.au>,
	Ingo Molnar <mingo@kernel.org>,  Jann Horn <jannh@google.com>,
	Jiri Slaby <jirislaby@kernel.org>,
	 Joel Fernandes <joel@joelfernandes.org>,
	Jonathan Corbet <corbet@lwn.net>,
	 Josh Triplett <josh@joshtriplett.org>,
	Justin Stitt <justinstitt@google.com>,
	 Kees Cook <kees@kernel.org>,
	Kentaro Takeda <takedakn@nttdata.co.jp>,
	 Mark Rutland <mark.rutland@arm.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	 Miguel Ojeda <ojeda@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	 Neeraj Upadhyay <neeraj.upadhyay@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	 Steven Rostedt <rostedt@goodmis.org>,
	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
	 Thomas Gleixner <tglx@linutronix.de>,
	Uladzislau Rezki <urezki@gmail.com>,
	Waiman Long <longman@redhat.com>,  Will Deacon <will@kernel.org>,
	kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
	 llvm@lists.linux.dev, rcu@vger.kernel.org,
	linux-crypto@vger.kernel.org,  linux-serial@vger.kernel.org
Subject: [PATCH v2 12/34] bit_spinlock: Include missing <asm/processor.h>
Date: Tue,  4 Mar 2025 10:21:11 +0100	[thread overview]
Message-ID: <20250304092417.2873893-13-elver@google.com> (raw)
In-Reply-To: <20250304092417.2873893-1-elver@google.com>

Including <linux/bit_spinlock.h> into an empty TU will result in the
compiler complaining:

./include/linux/bit_spinlock.h:34:4: error: call to undeclared function 'cpu_relax'; <...>
   34 |                         cpu_relax();
      |                         ^
1 error generated.

Include <asm/processor.h> to allow including bit_spinlock.h where
<asm/processor.h> is not otherwise included.

Signed-off-by: Marco Elver <elver@google.com>
---
 include/linux/bit_spinlock.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h
index bbc4730a6505..f1174a2fcc4d 100644
--- a/include/linux/bit_spinlock.h
+++ b/include/linux/bit_spinlock.h
@@ -7,6 +7,8 @@
 #include <linux/atomic.h>
 #include <linux/bug.h>
 
+#include <asm/processor.h>  /* for cpu_relax() */
+
 /*
  *  bit-based spin_lock()
  *
-- 
2.48.1.711.g2feabab25a-goog


  parent reply	other threads:[~2025-03-04  9:25 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-04  9:20 [PATCH v2 00/34] Compiler-Based Capability- and Locking-Analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 01/34] compiler_types: Move lock checking attributes to compiler-capability-analysis.h Marco Elver
2025-03-04 23:26   ` Bart Van Assche
2025-03-05  8:36   ` Dan Carpenter
2025-03-05  9:13     ` Marco Elver
2025-03-05  9:27       ` Dan Carpenter
2025-03-04  9:21 ` [PATCH v2 02/34] compiler-capability-analysis: Add infrastructure for Clang's capability analysis Marco Elver
2025-03-04 15:29   ` Peter Zijlstra
2025-03-04 16:05     ` Marco Elver
2025-03-04  9:21 ` [PATCH v2 03/34] compiler-capability-analysis: Add test stub Marco Elver
2025-03-04 23:52   ` Bart Van Assche
2025-03-05  0:03     ` Marco Elver
2025-03-04  9:21 ` [PATCH v2 04/34] Documentation: Add documentation for Compiler-Based Capability Analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 05/34] checkpatch: Warn about capability_unsafe() without comment Marco Elver
2025-03-04  9:21 ` [PATCH v2 06/34] cleanup: Basic compatibility with capability analysis Marco Elver
2025-03-04 12:55   ` Peter Zijlstra
2025-03-04 13:09     ` Marco Elver
2025-03-04 23:57   ` Bart Van Assche
2025-03-04  9:21 ` [PATCH v2 07/34] lockdep: Annotate lockdep assertions for " Marco Elver
2025-03-04  9:21 ` [PATCH v2 08/34] locking/rwlock, spinlock: Support Clang's " Marco Elver
2025-03-04 14:30   ` Peter Zijlstra
2025-03-04  9:21 ` [PATCH v2 09/34] compiler-capability-analysis: Change __cond_acquires to take return value Marco Elver
2025-03-04  9:21 ` [PATCH v2 10/34] locking/mutex: Support Clang's capability analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 11/34] locking/seqlock: " Marco Elver
2025-03-04  9:21 ` Marco Elver [this message]
2025-03-04  9:21 ` [PATCH v2 13/34] bit_spinlock: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 14/34] rcu: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 15/34] srcu: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 16/34] kref: Add capability-analysis annotations Marco Elver
2025-03-04  9:21 ` [PATCH v2 17/34] locking/rwsem: Support Clang's capability analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 18/34] locking/local_lock: Include missing headers Marco Elver
2025-03-04  9:21 ` [PATCH v2 19/34] locking/local_lock: Support Clang's capability analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 20/34] locking/ww_mutex: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 21/34] debugfs: Make debugfs_cancellation a capability struct Marco Elver
2025-03-04  9:21 ` [PATCH v2 22/34] compiler-capability-analysis: Remove Sparse support Marco Elver
2025-03-04  9:21 ` [PATCH v2 23/34] compiler-capability-analysis: Remove __cond_lock() function-like helper Marco Elver
2025-03-04 23:25   ` Bart Van Assche
2025-03-04  9:21 ` [PATCH v2 24/34] compiler-capability-analysis: Introduce header suppressions Marco Elver
2025-03-04  9:21 ` [PATCH v2 25/34] compiler: Let data_race() imply disabled capability analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 26/34] kfence: Enable " Marco Elver
2025-03-04  9:21 ` [PATCH v2 27/34] kcov: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 28/34] stackdepot: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 29/34] rhashtable: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 30/34] printk: Move locking annotation to printk.c Marco Elver
2025-03-04  9:21 ` [PATCH v2 31/34] drivers/tty: Enable capability analysis for core files Marco Elver
2025-03-05  9:15   ` Jiri Slaby
2025-03-05  9:26     ` Marco Elver
2025-03-04  9:21 ` [PATCH v2 32/34] security/tomoyo: Enable capability analysis Marco Elver
2025-03-04  9:21 ` [PATCH v2 33/34] crypto: " Marco Elver
2025-03-04  9:21 ` [PATCH v2 34/34] MAINTAINERS: Add entry for Capability Analysis Marco Elver
2025-03-04 23:18   ` Bart Van Assche
2025-03-04 11:21 ` [PATCH v2 00/34] Compiler-Based Capability- and Locking-Analysis Peter Zijlstra
2025-03-04 11:43   ` Marco Elver
2025-03-05 11:20 ` Peter Zijlstra
2025-03-05 15:27   ` Bart Van Assche
2025-03-05 16:16     ` Peter Zijlstra
2025-08-06 13:36   ` Marco Elver

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