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dmaengine: remove debugfs #ifdef 

commit b3b180e735 upstream.

The ptdma driver has added debugfs support, but this fails to build
when debugfs is disabled:

drivers/dma/ptdma/ptdma-debugfs.c: In function 'ptdma_debugfs_setup':
drivers/dma/ptdma/ptdma-debugfs.c:93:54: error: 'struct dma_device' has no member named 'dbg_dev_root'
   93 |         debugfs_create_file("info", 0400, pt->dma_dev.dbg_dev_root, pt,
      |                                                      ^
drivers/dma/ptdma/ptdma-debugfs.c:96:55: error: 'struct dma_device' has no member named 'dbg_dev_root'
   96 |         debugfs_create_file("stats", 0400, pt->dma_dev.dbg_dev_root, pt,
      |                                                       ^
drivers/dma/ptdma/ptdma-debugfs.c:102:52: error: 'struct dma_device' has no member named 'dbg_dev_root'
  102 |                 debugfs_create_dir("q", pt->dma_dev.dbg_dev_root);
      |                                                    ^

Remove the #ifdef in the header, as this only saves a few bytes,
but would require ugly #ifdefs in each driver using it.
Simplify the other user while we're at it.

Fixes: e2fb2e2a33 ("dmaengine: ptdma: Add debugfs entries for PTDMA")
Fixes: 26cf132de6 ("dmaengine: Create debug directories for DMA devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20210920122017.205975-1-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2021-09-20 14:20:07 +02:00 committed by Greg Kroah-Hartman
parent 6ffad92d05
commit 9e6b4c36e9
2 changed files with 1 additions and 16 deletions
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15
drivers/dma/xilinx/xilinx_dpdma.c
View File

@ -271,9 +271,6 @@ struct xilinx_dpdma_device {
/* -----------------------------------------------------------------------------
* DebugFS
*/
#ifdef CONFIG_DEBUG_FS
#define XILINX_DPDMA_DEBUGFS_READ_MAX_SIZE 32
#define XILINX_DPDMA_DEBUGFS_UINT16_MAX_STR "65535"
@ -299,7 +296,7 @@ struct xilinx_dpdma_debugfs_request {
static void xilinx_dpdma_debugfs_desc_done_irq(struct xilinx_dpdma_chan *chan)
{
if (chan->id == dpdma_debugfs.chan_id)
if (IS_ENABLED(CONFIG_DEBUG_FS) && chan->id == dpdma_debugfs.chan_id)
dpdma_debugfs.xilinx_dpdma_irq_done_count++;
}
@ -462,16 +459,6 @@ static void xilinx_dpdma_debugfs_init(struct xilinx_dpdma_device *xdev)
dev_err(xdev->dev, "Failed to create debugfs testcase file\n");
}
#else
static void xilinx_dpdma_debugfs_init(struct xilinx_dpdma_device *xdev)
{
}
static void xilinx_dpdma_debugfs_desc_done_irq(struct xilinx_dpdma_chan *chan)
{
}
#endif /* CONFIG_DEBUG_FS */
/* -----------------------------------------------------------------------------
* I/O Accessors
*/

2
include/linux/dmaengine.h
View File

@ -944,10 +944,8 @@ struct dma_device {
void (*device_issue_pending)(struct dma_chan *chan);
void (*device_release)(struct dma_device *dev);
/* debugfs support */
#ifdef CONFIG_DEBUG_FS
void (*dbg_summary_show)(struct seq_file *s, struct dma_device *dev);
struct dentry *dbg_dev_root;
#endif
};
static inline int dmaengine_slave_config(struct dma_chan *chan,