Re: [PATCH] dmaengine: remove DBGFS_FUNC_DECL()

From: Vinod Koul
Date: Wed Dec 05 2018 - 03:27:32 EST

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On 30-11-18, 10:42, Yangtao Li wrote:
> We already have the DEFINE_SHOW_ATTRIBUTE,There is no need to define
> such a macro,so remove DBGFS_FUNC_DECL.Also use macro to simplify some
> code.

Spaces after full stop and comma please

>
> Signed-off-by: Yangtao Li <tiny.windzz@xxxxxxxxx>
> ---
> drivers/dma/amba-pl08x.c | 14 ++------------
> drivers/dma/mic_x100_dma.c | 22 +++-------------------
> drivers/dma/pxa_dma.c | 24 ++++++++++++------------
> drivers/dma/qcom/hidma_dbg.c | 33 ++++++---------------------------

Do you mind splitting it per file.

> 4 files changed, 23 insertions(+), 70 deletions(-)
>
> diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
> index 97483df1f82e..fc8c2bab563c 100644
> --- a/drivers/dma/amba-pl08x.c
> +++ b/drivers/dma/amba-pl08x.c
> @@ -2505,24 +2505,14 @@ static int pl08x_debugfs_show(struct seq_file *s, void *data)
> return 0;
> }
>
> -static int pl08x_debugfs_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, pl08x_debugfs_show, inode->i_private);
> -}
> -
> -static const struct file_operations pl08x_debugfs_operations = {
> - .open = pl08x_debugfs_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> -};
> +DEFINE_SHOW_ATTRIBUTE(pl08x_debugfs);
>
> static void init_pl08x_debugfs(struct pl08x_driver_data *pl08x)
> {
> /* Expose a simple debugfs interface to view all clocks */
> (void) debugfs_create_file(dev_name(&pl08x->adev->dev),
> S_IFREG | S_IRUGO, NULL, pl08x,
> - &pl08x_debugfs_operations);
> + &pl08x_debugfs_fops);
> }
>
> #else
> diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
> index adfd316db1a8..6a91e28d537d 100644
> --- a/drivers/dma/mic_x100_dma.c
> +++ b/drivers/dma/mic_x100_dma.c
> @@ -676,7 +676,7 @@ static void mic_dma_dev_unreg(struct mic_dma_device *mic_dma_dev)
> }
>
> /* DEBUGFS CODE */
> -static int mic_dma_reg_seq_show(struct seq_file *s, void *pos)
> +static int mic_dma_reg_show(struct seq_file *s, void *pos)
> {
> struct mic_dma_device *mic_dma_dev = s->private;
> int i, chan_num, first_chan = mic_dma_dev->start_ch;
> @@ -707,23 +707,7 @@ static int mic_dma_reg_seq_show(struct seq_file *s, void *pos)
> return 0;
> }
>
> -static int mic_dma_reg_debug_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, mic_dma_reg_seq_show, inode->i_private);
> -}
> -
> -static int mic_dma_reg_debug_release(struct inode *inode, struct file *file)
> -{
> - return single_release(inode, file);
> -}
> -
> -static const struct file_operations mic_dma_reg_ops = {
> - .owner = THIS_MODULE,
> - .open = mic_dma_reg_debug_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = mic_dma_reg_debug_release
> -};
> +DEFINE_SHOW_ATTRIBUTE(mic_dma_reg);
>
> /* Debugfs parent dir */
> static struct dentry *mic_dma_dbg;
> @@ -747,7 +731,7 @@ static int mic_dma_driver_probe(struct mbus_device *mbdev)
> if (mic_dma_dev->dbg_dir)
> debugfs_create_file("mic_dma_reg", 0444,
> mic_dma_dev->dbg_dir, mic_dma_dev,
> - &mic_dma_reg_ops);
> + &mic_dma_reg_fops);
> }
> return 0;
> }
> diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
> index 825725057e00..8e1e1b07d32f 100644
> --- a/drivers/dma/pxa_dma.c
> +++ b/drivers/dma/pxa_dma.c
> @@ -189,7 +189,7 @@ bool pxad_filter_fn(struct dma_chan *chan, void *param);
> #include <linux/uaccess.h>
> #include <linux/seq_file.h>
>
> -static int dbg_show_requester_chan(struct seq_file *s, void *p)
> +static int requester_chan_show(struct seq_file *s, void *p)
> {
> struct pxad_phy *phy = s->private;
> int i;
> @@ -220,7 +220,7 @@ static int is_phys_valid(unsigned long addr)
> #define PXA_DCSR_STR(flag) (dcsr & PXA_DCSR_##flag ? #flag" " : "")
> #define PXA_DCMD_STR(flag) (dcmd & PXA_DCMD_##flag ? #flag" " : "")
>
> -static int dbg_show_descriptors(struct seq_file *s, void *p)
> +static int descriptors_show(struct seq_file *s, void *p)
> {
> struct pxad_phy *phy = s->private;
> int i, max_show = 20, burst, width;
> @@ -263,7 +263,7 @@ static int dbg_show_descriptors(struct seq_file *s, void *p)
> return 0;
> }
>
> -static int dbg_show_chan_state(struct seq_file *s, void *p)
> +static int chan_state_show(struct seq_file *s, void *p)
> {
> struct pxad_phy *phy = s->private;
> u32 dcsr, dcmd;
> @@ -306,7 +306,7 @@ static int dbg_show_chan_state(struct seq_file *s, void *p)
> return 0;
> }
>
> -static int dbg_show_state(struct seq_file *s, void *p)
> +static int state_show(struct seq_file *s, void *p)
> {
> struct pxad_device *pdev = s->private;
>
> @@ -329,10 +329,10 @@ static const struct file_operations dbg_fops_##name = { \
> .release = single_release, \
> }
>
> -DBGFS_FUNC_DECL(state);
> -DBGFS_FUNC_DECL(chan_state);
> -DBGFS_FUNC_DECL(descriptors);
> -DBGFS_FUNC_DECL(requester_chan);
> +DEFINE_SHOW_ATTRIBUTE(state);
> +DEFINE_SHOW_ATTRIBUTE(chan_state);
> +DEFINE_SHOW_ATTRIBUTE(descriptors);
> +DEFINE_SHOW_ATTRIBUTE(requester_chan);
>
> static struct dentry *pxad_dbg_alloc_chan(struct pxad_device *pdev,
> int ch, struct dentry *chandir)
> @@ -348,13 +348,13 @@ static struct dentry *pxad_dbg_alloc_chan(struct pxad_device *pdev,
>
> if (chan)
> chan_state = debugfs_create_file("state", 0400, chan, dt,
> - &dbg_fops_chan_state);
> + &chan_state_fops);
> if (chan_state)
> chan_descr = debugfs_create_file("descriptors", 0400, chan, dt,
> - &dbg_fops_descriptors);
> + &descriptors_fops);
> if (chan_descr)
> chan_reqs = debugfs_create_file("requesters", 0400, chan, dt,
> - &dbg_fops_requester_chan);
> + &requester_chan_fops);
> if (!chan_reqs)
> goto err_state;
>
> @@ -375,7 +375,7 @@ static void pxad_init_debugfs(struct pxad_device *pdev)
> goto err_root;
>
> pdev->dbgfs_state = debugfs_create_file("state", 0400, pdev->dbgfs_root,
> - pdev, &dbg_fops_state);
> + pdev, &state_fops);
> if (!pdev->dbgfs_state)
> goto err_state;
>
> diff --git a/drivers/dma/qcom/hidma_dbg.c b/drivers/dma/qcom/hidma_dbg.c
> index 3bdcb8056a36..9523faf7acdc 100644
> --- a/drivers/dma/qcom/hidma_dbg.c
> +++ b/drivers/dma/qcom/hidma_dbg.c
> @@ -85,11 +85,11 @@ static void hidma_ll_devstats(struct seq_file *s, void *llhndl)
> }
>
> /*
> - * hidma_chan_stats: display HIDMA channel statistics
> + * hidma_chan_show: display HIDMA channel statistics
> *
> * Display the statistics for the current HIDMA virtual channel device.
> */
> -static int hidma_chan_stats(struct seq_file *s, void *unused)
> +static int hidma_chan_show(struct seq_file *s, void *unused)
> {
> struct hidma_chan *mchan = s->private;
> struct hidma_desc *mdesc;
> @@ -117,11 +117,11 @@ static int hidma_chan_stats(struct seq_file *s, void *unused)
> }
>
> /*
> - * hidma_dma_info: display HIDMA device info
> + * hidma_dma_show: display HIDMA device info
> *
> * Display the info for the current HIDMA device.
> */
> -static int hidma_dma_info(struct seq_file *s, void *unused)
> +static int hidma_dma_show(struct seq_file *s, void *unused)
> {
> struct hidma_dev *dmadev = s->private;
> resource_size_t sz;
> @@ -138,29 +138,8 @@ static int hidma_dma_info(struct seq_file *s, void *unused)
> return 0;
> }
>
> -static int hidma_chan_stats_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, hidma_chan_stats, inode->i_private);
> -}
> -
> -static int hidma_dma_info_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, hidma_dma_info, inode->i_private);
> -}
> -
> -static const struct file_operations hidma_chan_fops = {
> - .open = hidma_chan_stats_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> -};
> -
> -static const struct file_operations hidma_dma_fops = {
> - .open = hidma_dma_info_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> -};
> +DEFINE_SHOW_ATTRIBUTE(hidma_chan);
> +DEFINE_SHOW_ATTRIBUTE(hidma_dma);
>
> void hidma_debug_uninit(struct hidma_dev *dmadev)
> {
> --
> 2.17.0

--
~Vinod

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