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wlan-ap-Telecominfraproject/feeds/qca-wifi-7/ipq53xx/patches-6.1/0467-ipq-mem-Track-memory-usage-selectively.patch
John Crispin 68cf54d9f7 qca-wifi-7: update to ath12.5.5 
Signed-off-by: John Crispin <john@phrozen.org>
2025-02-27 12:45:52 +01:00

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From d6a225656f0cf16f1292c3e0fb70403292758e85 Mon Sep 17 00:00:00 2001
From: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Date: Wed, 13 Sep 2023 21:05:53 +0530
Subject: [PATCH] ipq: mem: Track memory usage selectively
Track memory usage selectively for networking stack and wifi / eth
device drivers.
Change-Id: I8fdaf672ea6f207091ebb04cdbbf0121fe86a103
Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
---
include/linux/debugobjects.h | 15 +++++++++++++++
include/linux/dmapool.h | 11 +++++++++++
include/linux/mm.h | 4 ++++
init/main.c | 1 +
lib/Kconfig.debug | 4 ++++
lib/Makefile | 1 +
mm/Makefile | 1 +
mm/dmapool.c | 11 -----------
scripts/Makefile.build | 33 +++++++++++++++++++++++++++++++++
9 files changed, 70 insertions(+), 11 deletions(-)
diff --git a/include/linux/debugobjects.h b/include/linux/debugobjects.h
index 738f366dffeb..fb9abddbdb7e 100644
--- a/include/linux/debugobjects.h
+++ b/include/linux/debugobjects.h
@@ -106,6 +106,21 @@ static inline void debug_objects_early_init(void) { }
static inline void debug_objects_mem_init(void) { }
#endif
+#ifdef CONFIG_DEBUG_MEM_USAGE
+struct debug_obj_trace {
+ struct hlist_node node;
+ void *addr;
+ void *stack[9];
+ int size;
+};
+
+extern void debug_object_trace_init(void *addr, void **stack, size_t size);
+extern void debug_object_trace_free(void *addr);
+extern void debug_mem_usage_init(void);
+#else
+static inline void debug_mem_usage_init(void) { }
+#endif
+
#ifdef CONFIG_DEBUG_OBJECTS_FREE
extern void debug_check_no_obj_freed(const void *address, unsigned long size);
#else
diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index f632ecfb4238..7cd9ed9f78a1 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -16,6 +16,17 @@
struct device;
+struct dma_pool { /* the pool */
+ struct list_head page_list;
+ spinlock_t lock;
+ size_t size;
+ struct device *dev;
+ size_t allocation;
+ size_t boundary;
+ char name[32];
+ struct list_head pools;
+};
+
#ifdef CONFIG_HAS_DMA
struct dma_pool *dma_pool_create(const char *name, struct device *dev,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e5e8acf8eb89..335e7efdc2e7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3494,4 +3494,8 @@ madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
}
#endif
+#ifdef CONFIG_DEBUG_MEM_USAGE
+extern int debug_mem_usage_enabled;
+#endif
+
#endif /* _LINUX_MM_H */
diff --git a/init/main.c b/init/main.c
index 88dd07e5c7d7..5154ee77f3bc 100644
--- a/init/main.c
+++ b/init/main.c
@@ -874,6 +874,7 @@ static void __init mm_init(void)
kmemleak_init();
pgtable_init();
debug_objects_mem_init();
+ debug_mem_usage_init();
vmalloc_init();
/* Should be run after vmap initialization */
if (early_page_ext_enabled())
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8a3d0b3c91e7..203ac5283bcf 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -987,6 +987,10 @@ config DEBUG_STACKOVERFLOW
If in doubt, say "N".
+config DEBUG_MEM_USAGE
+ default n
+ bool "Track memory usage selectively"
+
source "lib/Kconfig.kasan"
source "lib/Kconfig.kfence"
source "lib/Kconfig.kmsan"
diff --git a/lib/Makefile b/lib/Makefile
index 3b00ad1f06b0..e80726633723 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -169,6 +169,7 @@ obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
obj-$(CONFIG_DEBUG_LIST) += list_debug.o
obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
+obj-$(CONFIG_DEBUG_MEM_USAGE) += debug_mem_usage.o
obj-$(CONFIG_BITREVERSE) += bitrev.o
obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o
diff --git a/mm/Makefile b/mm/Makefile
index 8e105e5b3e29..a6aec06066ad 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -124,6 +124,7 @@ obj-$(CONFIG_SECRETMEM) += secretmem.o
obj-$(CONFIG_CMA_SYSFS) += cma_sysfs.o
obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o
+obj-$(CONFIG_DEBUG_MEM_USAGE) += wrap_mem_api.o
obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o
obj-$(CONFIG_DAMON) += damon/
obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o
diff --git a/mm/dmapool.c b/mm/dmapool.c
index a7eb5d0eb2da..3e0d2c7cdabc 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -40,17 +40,6 @@
#define DMAPOOL_DEBUG 1
#endif
-struct dma_pool { /* the pool */
- struct list_head page_list;
- spinlock_t lock;
- size_t size;
- struct device *dev;
- size_t allocation;
- size_t boundary;
- char name[32];
- struct list_head pools;
-};
-
struct dma_page { /* cacheable header for 'allocation' bytes */
struct list_head page_list;
void *vaddr;
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index ec533c08f37b..60f625c9eab9 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -157,10 +157,43 @@ ifdef CONFIG_LTO_CLANG
cmd_ld_single_m = $(if $(is-single-obj-m), ; $(LD) $(ld_flags) -r -o $(tmp-target) $@; mv $(tmp-target) $@)
endif
+ifdef CONFIG_DEBUG_MEM_USAGE
+CFLAGS_WRAP := -include include/linux/debug_mem_usage.h
+NEW_CFLAGS_WRAP := $(CFLAGS_WRAP)
+
+cmd_export_new_cflags = \
+ $(if $(findstring kernel/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring arch/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring init/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring mm/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring block/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring kernel/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring block/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring usr/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring security/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring sound/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring crypto/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring firmware/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring samples/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring tools/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring lib/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring fs/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring ipc/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring drivers/, $@), $(filter-out $(NEW_CFLAGS_WRAP), $(CFLAGS_WRAP))) \
+ $(if $(findstring drivers/net/, $@), $(CFLAGS_WRAP)) \
+ $(if $(findstring net/, $@), $(CFLAGS_WRAP)) \
+ $(if $(findstring /linux-ipq, $@), $(CFLAGS_WRAP))
+
+quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
+ cmd_cc_o_c = $(CC) $(c_flags) $(cmd_export_new_cflags) -c -o $@ $< \
+ $(cmd_ld_single_m) \
+ $(cmd_objtool)
+else
quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< \
$(cmd_ld_single_m) \
$(cmd_objtool)
+endif
ifdef CONFIG_MODVERSIONS
# When module versioning is enabled the following steps are executed:
--
2.34.1
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