The LOCKDEP_*_BITS configs control the size of internal structures used
by lockdep. The size is calculated as a power of two of the configured
value (e.g. 16 => 64KB). Update these descriptions to more accurately
reflect this, as "Bitsize" can be misleading.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
---
 lib/Kconfig.debug | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c8b1db37abe6..5a769cbf4bb2 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1522,7 +1522,7 @@ config LOCKDEP_SMALL
 	bool
 
 config LOCKDEP_BITS
-	int "Bitsize for MAX_LOCKDEP_ENTRIES"
+	int "Size for MAX_LOCKDEP_ENTRIES (as Nth power of 2)"
 	depends on LOCKDEP && !LOCKDEP_SMALL
 	range 10 24
 	default 15
@@ -1530,7 +1530,7 @@ config LOCKDEP_BITS
 	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message.
 
 config LOCKDEP_CHAINS_BITS
-	int "Bitsize for MAX_LOCKDEP_CHAINS"
+	int "Size for MAX_LOCKDEP_CHAINS (as Nth power of 2)"
 	depends on LOCKDEP && !LOCKDEP_SMALL
 	range 10 21
 	default 16
@@ -1538,7 +1538,7 @@ config LOCKDEP_CHAINS_BITS
 	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_CHAINS too low!" message.
 
 config LOCKDEP_STACK_TRACE_BITS
-	int "Bitsize for MAX_STACK_TRACE_ENTRIES"
+	int "Size for MAX_STACK_TRACE_ENTRIES (as Nth power of 2)"
 	depends on LOCKDEP && !LOCKDEP_SMALL
 	range 10 26
 	default 19
@@ -1546,7 +1546,7 @@ config LOCKDEP_STACK_TRACE_BITS
 	  Try increasing this value if you hit "BUG: MAX_STACK_TRACE_ENTRIES too low!" message.
 
 config LOCKDEP_STACK_TRACE_HASH_BITS
-	int "Bitsize for STACK_TRACE_HASH_SIZE"
+	int "Size for STACK_TRACE_HASH_SIZE (as Nth power of 2)"
 	depends on LOCKDEP && !LOCKDEP_SMALL
 	range 10 26
 	default 14
@@ -1554,7 +1554,7 @@ config LOCKDEP_STACK_TRACE_HASH_BITS
 	  Try increasing this value if you need large STACK_TRACE_HASH_SIZE.
 
 config LOCKDEP_CIRCULAR_QUEUE_BITS
-	int "Bitsize for elements in circular_queue struct"
+	int "Size for elements in circular_queue struct (as Nth power of 2)"
 	depends on LOCKDEP
 	range 10 26
 	default 12
-- 
2.47.0.163.g1226f6d8fa-goog

On 10/24/24 2:36 PM, Carlos Llamas wrote:
> The LOCKDEP_*_BITS configs control the size of internal structures used
> by lockdep. The size is calculated as a power of two of the configured
> value (e.g. 16 => 64KB). Update these descriptions to more accurately
> reflect this, as "Bitsize" can be misleading.
>
> Suggested-by: Andrew Morton <akpm@linux-foundation.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Boqun Feng <boqun.feng@gmail.com>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Waiman Long <longman@redhat.com>
> Cc: Will Deacon <will@kernel.org>
> Signed-off-by: Carlos Llamas <cmllamas@google.com>
> ---
>   lib/Kconfig.debug | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index c8b1db37abe6..5a769cbf4bb2 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1522,7 +1522,7 @@ config LOCKDEP_SMALL
>   	bool
>   
>   config LOCKDEP_BITS
> -	int "Bitsize for MAX_LOCKDEP_ENTRIES"
> +	int "Size for MAX_LOCKDEP_ENTRIES (as Nth power of 2)"
>   	depends on LOCKDEP && !LOCKDEP_SMALL
>   	range 10 24
>   	default 15
> @@ -1530,7 +1530,7 @@ config LOCKDEP_BITS
>   	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message.
>   
>   config LOCKDEP_CHAINS_BITS
> -	int "Bitsize for MAX_LOCKDEP_CHAINS"
> +	int "Size for MAX_LOCKDEP_CHAINS (as Nth power of 2)"
>   	depends on LOCKDEP && !LOCKDEP_SMALL
>   	range 10 21
>   	default 16
> @@ -1538,7 +1538,7 @@ config LOCKDEP_CHAINS_BITS
>   	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_CHAINS too low!" message.
>   
>   config LOCKDEP_STACK_TRACE_BITS
> -	int "Bitsize for MAX_STACK_TRACE_ENTRIES"
> +	int "Size for MAX_STACK_TRACE_ENTRIES (as Nth power of 2)"
>   	depends on LOCKDEP && !LOCKDEP_SMALL
>   	range 10 26
>   	default 19
> @@ -1546,7 +1546,7 @@ config LOCKDEP_STACK_TRACE_BITS
>   	  Try increasing this value if you hit "BUG: MAX_STACK_TRACE_ENTRIES too low!" message.
>   
>   config LOCKDEP_STACK_TRACE_HASH_BITS
> -	int "Bitsize for STACK_TRACE_HASH_SIZE"
> +	int "Size for STACK_TRACE_HASH_SIZE (as Nth power of 2)"
>   	depends on LOCKDEP && !LOCKDEP_SMALL
>   	range 10 26
>   	default 14
> @@ -1554,7 +1554,7 @@ config LOCKDEP_STACK_TRACE_HASH_BITS
>   	  Try increasing this value if you need large STACK_TRACE_HASH_SIZE.
>   
>   config LOCKDEP_CIRCULAR_QUEUE_BITS
> -	int "Bitsize for elements in circular_queue struct"
> +	int "Size for elements in circular_queue struct (as Nth power of 2)"
>   	depends on LOCKDEP
>   	range 10 26
>   	default 12
Acked-by: Waiman Long <longman@redhat.com>