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Subject[PATCH V2 1/2] mm/damon/dbgfs: Modify Damon dbfs interface dependency in Kconfig
Date
If you want to support "DAMON_DBGFS" in config file, it only depends on
any one of "DAMON_VADDR" and "DAMON_PADDR", and sometimes we just want to
use damon virtual address function, but it is unreasonable to include "DAMON_PADDR"
in config file which cause the damon/paddr.c be compiled, so there fix it.

Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
---
include/linux/damon.h | 12 ++++++++++++
mm/damon/Kconfig | 2 +-
2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 8a73e825e0d5..00ad96f2ec10 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -463,11 +463,23 @@ int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
#ifdef CONFIG_DAMON_VADDR
void damon_va_set_primitives(struct damon_ctx *ctx);
bool damon_va_target_valid(void *t);
+#else
+static inline void damon_va_set_primitives(struct damon_ctx *ctx) {}
+static inline bool damon_va_target_valid(void *t)
+{
+ return false;
+}
#endif /* CONFIG_DAMON_VADDR */

#ifdef CONFIG_DAMON_PADDR
void damon_pa_set_primitives(struct damon_ctx *ctx);
bool damon_pa_target_valid(void *t);
+#else
+static inline void damon_pa_set_primitives(struct damon_ctx *ctx) {}
+static inline bool damon_pa_target_valid(void *t)
+{
+ return false;
+}
#endif /* CONFIG_DAMON_PADDR */

#endif /* _DAMON_H */
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 5bcf05851ad0..971ffc496596 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -54,7 +54,7 @@ config DAMON_VADDR_KUNIT_TEST

config DAMON_DBGFS
bool "DAMON debugfs interface"
- depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS
+ depends on DAMON_VADDR || DAMON_PADDR && DEBUG_FS
help
This builds the debugfs interface for DAMON. The user space admins
can use the interface for arbitrary data access monitoring.
--
2.31.0
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