[PATCH v5 11/15] dmaengine: dw-edma: Move struct dentry variable from static definition into dw_edma struct

Gustavo Pimentel
2021-02-11T09:18:18Z

Move struct dentry variable from static definition (dw-edma-v0-debugfs.c)
into dw_edma struct (dw-edma-core.h)

Also the variable was renamed from base_dir to debugfs.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
---
drivers/dma/dw-edma/dw-edma-core.c | 2 +-
drivers/dma/dw-edma/dw-edma-core.h | 3 +++
drivers/dma/dw-edma/dw-edma-v0-core.c | 4 ++--
drivers/dma/dw-edma/dw-edma-v0-core.h | 2 +-
drivers/dma/dw-edma/dw-edma-v0-debugfs.c | 22 +++++++++++++---------
drivers/dma/dw-edma/dw-edma-v0-debugfs.h | 4 ++--
6 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index 48887b5..8d8292e 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -1003,7 +1003,7 @@ int dw_edma_remove(struct dw_edma_chip *chip)
dma_async_device_unregister(&dw->rd_edma);

/* Turn debugfs off */
- dw_edma_v0_core_debugfs_off();
+ dw_edma_v0_core_debugfs_off(chip);

return 0;
}
diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h
index cba5436..60316d4 100644
--- a/drivers/dma/dw-edma/dw-edma-core.h
+++ b/drivers/dma/dw-edma/dw-edma-core.h
@@ -137,6 +137,9 @@ struct dw_edma {
const struct dw_edma_core_ops *ops;

raw_spinlock_t lock; /* Only for legacy */
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfs;
+#endif /* CONFIG_DEBUG_FS */
};

struct dw_edma_sg {
diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c
index 5b0541a..329fc2e 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-core.c
+++ b/drivers/dma/dw-edma/dw-edma-v0-core.c
@@ -506,7 +506,7 @@ void dw_edma_v0_core_debugfs_on(struct dw_edma_chip *chip)
dw_edma_v0_debugfs_on(chip);
}

-void dw_edma_v0_core_debugfs_off(void)
+void dw_edma_v0_core_debugfs_off(struct dw_edma_chip *chip)
{
- dw_edma_v0_debugfs_off();
+ dw_edma_v0_debugfs_off(chip);
}
diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.h b/drivers/dma/dw-edma/dw-edma-v0-core.h
index abae152..2afa626 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-core.h
+++ b/drivers/dma/dw-edma/dw-edma-v0-core.h
@@ -23,6 +23,6 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first);
int dw_edma_v0_core_device_config(struct dw_edma_chan *chan);
/* eDMA debug fs callbacks */
void dw_edma_v0_core_debugfs_on(struct dw_edma_chip *chip);
-void dw_edma_v0_core_debugfs_off(void);
+void dw_edma_v0_core_debugfs_off(struct dw_edma_chip *chip);

#endif /* _DW_EDMA_V0_CORE_H */
diff --git a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
index 157dfc2..4b3bcff 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
+++ b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
@@ -38,7 +38,6 @@
#define CHANNEL_STR "channel"
#define REGISTERS_STR "registers"

-static struct dentry *base_dir;
static struct dw_edma *dw;
static struct dw_edma_v0_regs __iomem *regs;

@@ -272,7 +271,7 @@ static void dw_edma_debugfs_regs(void)
struct dentry *regs_dir;
int nr_entries;

- regs_dir = debugfs_create_dir(REGISTERS_STR, base_dir);
+ regs_dir = debugfs_create_dir(REGISTERS_STR, dw->debugfs);
if (!regs_dir)
return;

@@ -293,18 +292,23 @@ void dw_edma_v0_debugfs_on(struct dw_edma_chip *chip)
if (!regs)
return;

- base_dir = debugfs_create_dir(dw->name, NULL);
- if (!base_dir)
+ dw->debugfs = debugfs_create_dir(dw->name, NULL);
+ if (!dw->debugfs)
return;

- debugfs_create_u32("mf", 0444, base_dir, &dw->mf);
- debugfs_create_u16("wr_ch_cnt", 0444, base_dir, &dw->wr_ch_cnt);
- debugfs_create_u16("rd_ch_cnt", 0444, base_dir, &dw->rd_ch_cnt);
+ debugfs_create_u32("mf", 0444, dw->debugfs, &dw->mf);
+ debugfs_create_u16("wr_ch_cnt", 0444, dw->debugfs, &dw->wr_ch_cnt);
+ debugfs_create_u16("rd_ch_cnt", 0444, dw->debugfs, &dw->rd_ch_cnt);

dw_edma_debugfs_regs();
}

-void dw_edma_v0_debugfs_off(void)
+void dw_edma_v0_debugfs_off(struct dw_edma_chip *chip)
{
- debugfs_remove_recursive(base_dir);
+ dw = chip->dw;
+ if (!dw)
+ return;
+
+ debugfs_remove_recursive(dw->debugfs);
+ dw->debugfs = NULL;
}
diff --git a/drivers/dma/dw-edma/dw-edma-v0-debugfs.h b/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
index 5450a0a..d0ff25a 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
+++ b/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
@@ -13,13 +13,13 @@

#ifdef CONFIG_DEBUG_FS
void dw_edma_v0_debugfs_on(struct dw_edma_chip *chip);
-void dw_edma_v0_debugfs_off(void);
+void dw_edma_v0_debugfs_off(struct dw_edma_chip *chip);
#else
static inline void dw_edma_v0_debugfs_on(struct dw_edma_chip *chip)
{
}

-static inline void dw_edma_v0_debugfs_off(void)
+static inline void dw_edma_v0_debugfs_off(struct dw_edma_chip *chip)
{
}
#endif /* CONFIG_DEBUG_FS */
--
2.7.4