diff options
| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2024-02-05 08:46:47 +0530 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-22 10:24:53 -0800 |
| commit | fe58582c0e362d5e52b97985142b0dcef920b745 (patch) | |
| tree | ae70250cbf3bdbc5bcb6c3f555e215f5e3d2a816 | |
| parent | be142b80803049423944ca77be0905564af9a46c (diff) | |
mm/cma: drop CONFIG_CMA_DEBUG
All pr_debug() prints in (mm/cma.c) could be enabled via standard Makefile
based method. Besides cma_debug_show_areas() should always be called
during cma_alloc() failure path. This seemingly redundant config,
CONFIG_CMA_DEBUG can be dropped without any problem.
[lukas.bulwahn@gmail.com: remove debug code to removed CONFIG_CMA_DEBUG]
Link: https://lkml.kernel.org/r/20240207143825.986-1-lukas.bulwahn@gmail.com
Link: https://lkml.kernel.org/r/20240205031647.283510-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | kernel/dma/contiguous.c | 6 | ||||
| -rw-r--r-- | mm/Kconfig | 9 | ||||
| -rw-r--r-- | mm/cma.c | 9 |
3 files changed, 0 insertions, 24 deletions
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index f005c66f378c..055da410ac71 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -37,12 +37,6 @@ #define pr_fmt(fmt) "cma: " fmt -#ifdef CONFIG_CMA_DEBUG -#ifndef DEBUG -# define DEBUG -#endif -#endif - #include <asm/page.h> #include <linux/memblock.h> diff --git a/mm/Kconfig b/mm/Kconfig index ffc3a2ba3a8c..35fa9940e61f 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -901,15 +901,6 @@ config CMA If unsure, say "n". -config CMA_DEBUG - bool "CMA debug messages (DEVELOPMENT)" - depends on DEBUG_KERNEL && CMA - help - Turns on debug messages in CMA. This produces KERN_DEBUG - messages for every CMA call as well as various messages while - processing calls such as dma_alloc_from_contiguous(). - This option does not affect warning and error messages. - config CMA_DEBUGFS bool "CMA debugfs interface" depends on CMA && DEBUG_FS @@ -14,11 +14,6 @@ #define pr_fmt(fmt) "cma: " fmt -#ifdef CONFIG_CMA_DEBUG -#ifndef DEBUG -# define DEBUG -#endif -#endif #define CREATE_TRACE_POINTS #include <linux/memblock.h> @@ -387,7 +382,6 @@ err: return ret; } -#ifdef CONFIG_CMA_DEBUG static void cma_debug_show_areas(struct cma *cma) { unsigned long next_zero_bit, next_set_bit, nr_zero; @@ -412,9 +406,6 @@ static void cma_debug_show_areas(struct cma *cma) pr_cont("=> %lu free of %lu total pages\n", nr_total, cma->count); spin_unlock_irq(&cma->lock); } -#else -static inline void cma_debug_show_areas(struct cma *cma) { } -#endif /** * cma_alloc() - allocate pages from contiguous area |