[PATCH] docs: irqflags-tracing: Fix the lockdep Kconfig option names

Subsystems: documentation, the rest

COLD39d IN LINUX-NEXT

Queued in linux-next as b31821013b23 on 2026-09-07.

2 messages, 2 authors, 2026-09-07 · open the first message on its own page

[PATCH] docs: irqflags-tracing: Fix the lockdep Kconfig option names

From: Karl Mehltretter <hidden>
Date: 2026-09-05 02:38:00

CONFIG_PROVE_SPIN_LOCKING, CONFIG_PROVE_RW_LOCKING,
CONFIG_PROVE_MUTEX_LOCKING and CONFIG_PROVE_RWSEM_LOCKING have never
existed in mainline. Lock proving was merged as the single
CONFIG_PROVE_LOCKING, which has depended on CONFIG_TRACE_IRQFLAGS_SUPPORT
from the start, so there is no reduced set of options without it.

Fixes: 55df314fbdb4 ("[PATCH] lockdep: irqtrace subsystem, docs")
Assisted-by: LLM
Signed-off-by: Karl Mehltretter <redacted>
---
 Documentation/core-api/irq/irqflags-tracing.rst | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/Documentation/core-api/irq/irqflags-tracing.rst b/Documentation/core-api/irq/irqflags-tracing.rst
index bdd208259fb3..a3c77046ae6b 100644
--- a/Documentation/core-api/irq/irqflags-tracing.rst
+++ b/Documentation/core-api/irq/irqflags-tracing.rst
@@ -9,12 +9,8 @@ that it gives interested subsystems an opportunity to be notified of
 every hardirqs-off/hardirqs-on, softirqs-off/softirqs-on event that
 happens in the kernel.
 
-CONFIG_TRACE_IRQFLAGS_SUPPORT is needed for CONFIG_PROVE_SPIN_LOCKING
-and CONFIG_PROVE_RW_LOCKING to be offered by the generic lock debugging
-code. Otherwise only CONFIG_PROVE_MUTEX_LOCKING and
-CONFIG_PROVE_RWSEM_LOCKING will be offered on an architecture - these
-are locking APIs that are not used in IRQ context. (the one exception
-for rwsems is worked around)
+CONFIG_TRACE_IRQFLAGS_SUPPORT is needed for CONFIG_PROVE_LOCKING to be
+offered by the generic lock debugging code.
 
 Architecture support for this is certainly not in the "trivial"
 category, because lots of lowlevel assembly code deal with irq-flags
-- 
2.53.0

Re: [PATCH] docs: irqflags-tracing: Fix the lockdep Kconfig option names

From: Jonathan Corbet <corbet@lwn.net>
Date: 2026-09-07 16:04:15

Karl Mehltretter [off-list ref] writes:
quoted hunk
CONFIG_PROVE_SPIN_LOCKING, CONFIG_PROVE_RW_LOCKING,
CONFIG_PROVE_MUTEX_LOCKING and CONFIG_PROVE_RWSEM_LOCKING have never
existed in mainline. Lock proving was merged as the single
CONFIG_PROVE_LOCKING, which has depended on CONFIG_TRACE_IRQFLAGS_SUPPORT
from the start, so there is no reduced set of options without it.

Fixes: 55df314fbdb4 ("[PATCH] lockdep: irqtrace subsystem, docs")
Assisted-by: LLM
Signed-off-by: Karl Mehltretter <redacted>
---
 Documentation/core-api/irq/irqflags-tracing.rst | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/Documentation/core-api/irq/irqflags-tracing.rst b/Documentation/core-api/irq/irqflags-tracing.rst
index bdd208259fb3..a3c77046ae6b 100644
--- a/Documentation/core-api/irq/irqflags-tracing.rst
+++ b/Documentation/core-api/irq/irqflags-tracing.rst
@@ -9,12 +9,8 @@ that it gives interested subsystems an opportunity to be notified of
 every hardirqs-off/hardirqs-on, softirqs-off/softirqs-on event that
 happens in the kernel.
 
-CONFIG_TRACE_IRQFLAGS_SUPPORT is needed for CONFIG_PROVE_SPIN_LOCKING
-and CONFIG_PROVE_RW_LOCKING to be offered by the generic lock debugging
-code. Otherwise only CONFIG_PROVE_MUTEX_LOCKING and
-CONFIG_PROVE_RWSEM_LOCKING will be offered on an architecture - these
-are locking APIs that are not used in IRQ context. (the one exception
-for rwsems is worked around)
+CONFIG_TRACE_IRQFLAGS_SUPPORT is needed for CONFIG_PROVE_LOCKING to be
+offered by the generic lock debugging code.
Applied, thanks.

jon
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