[07/20] mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs

Message ID 20231113191340.17482-29-vbabka@suse.cz
State New
Headers
Series remove the SLAB allocator |

Commit Message

Vlastimil Babka Nov. 13, 2023, 7:13 p.m. UTC
  CONFIG_DEBUG_SLAB is going away with CONFIG_SLAB, so remove dead ifdefs
in mempool and dmapool code.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/dmapool.c | 2 +-
 mm/mempool.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
  

Comments

Kees Cook Nov. 14, 2023, 4:31 a.m. UTC | #1
On Mon, Nov 13, 2023 at 08:13:48PM +0100, Vlastimil Babka wrote:
> CONFIG_DEBUG_SLAB is going away with CONFIG_SLAB, so remove dead ifdefs
> in mempool and dmapool code.
> 
> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
> ---
>  mm/dmapool.c | 2 +-
>  mm/mempool.c | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/mm/dmapool.c b/mm/dmapool.c
> index a151a21e571b..f0bfc6c490f4 100644
> --- a/mm/dmapool.c
> +++ b/mm/dmapool.c
> @@ -36,7 +36,7 @@
>  #include <linux/types.h>
>  #include <linux/wait.h>
>  
> -#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB_DEBUG_ON)
> +#ifdef CONFIG_SLUB_DEBUG_ON
>  #define DMAPOOL_DEBUG 1
>  #endif
>  
> diff --git a/mm/mempool.c b/mm/mempool.c
> index 734bcf5afbb7..62dcbeb4c2a9 100644
> --- a/mm/mempool.c
> +++ b/mm/mempool.c
> @@ -20,7 +20,7 @@
>  #include <linux/writeback.h>
>  #include "slab.h"
>  
> -#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB_DEBUG_ON)
> +#ifdef CONFIG_SLUB_DEBUG_ON
>  static void poison_error(mempool_t *pool, void *element, size_t size,
>  			 size_t byte)
>  {
> @@ -95,14 +95,14 @@ static void poison_element(mempool_t *pool, void *element)
>  		kunmap_atomic(addr);
>  	}
>  }
> -#else /* CONFIG_DEBUG_SLAB || CONFIG_SLUB_DEBUG_ON */
> +#else /* CONFIG_SLUB_DEBUG_ON */
>  static inline void check_element(mempool_t *pool, void *element)
>  {
>  }
>  static inline void poison_element(mempool_t *pool, void *element)
>  {
>  }
> -#endif /* CONFIG_DEBUG_SLAB || CONFIG_SLUB_DEBUG_ON */
> +#endif /*CONFIG_SLUB_DEBUG_ON */

nit: space after "*"

With that fixed:

Reviewed-by: Kees Cook <keescook@chromium.org>
  

Patch

diff --git a/mm/dmapool.c b/mm/dmapool.c
index a151a21e571b..f0bfc6c490f4 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -36,7 +36,7 @@ 
 #include <linux/types.h>
 #include <linux/wait.h>
 
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB_DEBUG_ON)
+#ifdef CONFIG_SLUB_DEBUG_ON
 #define DMAPOOL_DEBUG 1
 #endif
 
diff --git a/mm/mempool.c b/mm/mempool.c
index 734bcf5afbb7..62dcbeb4c2a9 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -20,7 +20,7 @@ 
 #include <linux/writeback.h>
 #include "slab.h"
 
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB_DEBUG_ON)
+#ifdef CONFIG_SLUB_DEBUG_ON
 static void poison_error(mempool_t *pool, void *element, size_t size,
 			 size_t byte)
 {
@@ -95,14 +95,14 @@  static void poison_element(mempool_t *pool, void *element)
 		kunmap_atomic(addr);
 	}
 }
-#else /* CONFIG_DEBUG_SLAB || CONFIG_SLUB_DEBUG_ON */
+#else /* CONFIG_SLUB_DEBUG_ON */
 static inline void check_element(mempool_t *pool, void *element)
 {
 }
 static inline void poison_element(mempool_t *pool, void *element)
 {
 }
-#endif /* CONFIG_DEBUG_SLAB || CONFIG_SLUB_DEBUG_ON */
+#endif /*CONFIG_SLUB_DEBUG_ON */
 
 static __always_inline void kasan_poison_element(mempool_t *pool, void *element)
 {