[PATCH] drm: sti: remove useless call to dev->struct_mutex
Benjamin Gaignard
benjamin.gaignard at linaro.org
Fri Apr 22 15:03:09 UTC 2016
No need to protect debugfs functions with dev->struct_mutex
Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
---
drivers/gpu/drm/sti/sti_cursor.c | 7 -------
drivers/gpu/drm/sti/sti_drv.c | 6 ------
drivers/gpu/drm/sti/sti_dvo.c | 7 -------
drivers/gpu/drm/sti/sti_gdp.c | 14 --------------
drivers/gpu/drm/sti/sti_hda.c | 7 -------
drivers/gpu/drm/sti/sti_hdmi.c | 7 -------
drivers/gpu/drm/sti/sti_hqvdp.c | 7 -------
drivers/gpu/drm/sti/sti_mixer.c | 7 -------
drivers/gpu/drm/sti/sti_tvout.c | 7 -------
drivers/gpu/drm/sti/sti_vid.c | 7 -------
10 files changed, 76 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 3abb400..e6ee4c5 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -103,12 +103,6 @@ static int cursor_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_cursor *cursor = (struct sti_cursor *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "%s: (vaddr = 0x%p)",
sti_plane_to_str(&cursor->plane), cursor->regs);
@@ -127,7 +121,6 @@ static int cursor_dbg_show(struct seq_file *s, void *data)
DBGFS_DUMP(CUR_AWE);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 6bd6aba..a8eece2 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -72,11 +72,6 @@ static int sti_drm_fps_dbg_show(struct seq_file *s, void *data)
struct drm_info_node *node = s->private;
struct drm_device *dev = node->minor->dev;
struct drm_plane *p;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
list_for_each_entry(p, &dev->mode_config.plane_list, head) {
struct sti_plane *plane = to_sti_plane(p);
@@ -86,7 +81,6 @@ static int sti_drm_fps_dbg_show(struct seq_file *s, void *data)
plane->fps_info.fips_str);
}
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index 25f7663..d439128 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -177,12 +177,6 @@ static int dvo_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_dvo *dvo = (struct sti_dvo *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "DVO: (vaddr = 0x%p)", dvo->regs);
DBGFS_DUMP(DVO_AWG_DIGSYNC_CTRL);
@@ -193,7 +187,6 @@ static int dvo_dbg_show(struct seq_file *s, void *data)
dvo_dbg_awg_microcode(s, dvo->regs + DVO_DIGSYNC_INSTR_I);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index ff3d3e7..3d098f1 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -207,14 +207,8 @@ static int gdp_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
struct drm_plane *drm_plane = &gdp->plane.drm_plane;
struct drm_crtc *crtc = drm_plane->crtc;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "%s: (vaddr = 0x%p)",
sti_plane_to_str(&gdp->plane), gdp->regs);
@@ -247,7 +241,6 @@ static int gdp_dbg_show(struct seq_file *s, void *data)
seq_printf(s, " Connected to DRM CRTC #%d (%s)\n",
crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)));
- mutex_unlock(&dev->struct_mutex);
return 0;
}
@@ -278,13 +271,7 @@ static int gdp_node_dbg_show(struct seq_file *s, void *arg)
{
struct drm_info_node *node = s->private;
struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
unsigned int b;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
for (b = 0; b < GDP_NODE_NB_BANK; b++) {
seq_printf(s, "\n%s[%d].top", sti_plane_to_str(&gdp->plane), b);
@@ -293,7 +280,6 @@ static int gdp_node_dbg_show(struct seq_file *s, void *arg)
gdp_node_dump_node(s, gdp->node_list[b].btm_field);
}
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index ec0d017..d0e1647 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -375,12 +375,6 @@ static int hda_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_hda *hda = (struct sti_hda *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "HD Analog: (vaddr = 0x%p)", hda->regs);
DBGFS_DUMP(HDA_ANA_CFG);
@@ -396,7 +390,6 @@ static int hda_dbg_show(struct seq_file *s, void *data)
hda_dbg_video_dacs_ctrl(s, hda->video_dacs_ctrl);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 6ef0715..85545eb 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -628,12 +628,6 @@ static int hdmi_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_hdmi *hdmi = (struct sti_hdmi *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "HDMI: (vaddr = 0x%p)", hdmi->regs);
DBGFS_DUMP("\n", HDMI_CFG);
@@ -690,7 +684,6 @@ static int hdmi_dbg_show(struct seq_file *s, void *data)
DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_VENDOR);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index e05b0dc..6230565 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -554,14 +554,8 @@ static int hqvdp_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
int cmd, cmd_offset, infoxp70;
void *virt;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "%s: (vaddr = 0x%p)",
sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
@@ -629,7 +623,6 @@ static int hqvdp_dbg_show(struct seq_file *s, void *data)
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
index e7425c3..cc89d75 100644
--- a/drivers/gpu/drm/sti/sti_mixer.c
+++ b/drivers/gpu/drm/sti/sti_mixer.c
@@ -150,12 +150,6 @@ static int mixer_dbg_show(struct seq_file *s, void *arg)
{
struct drm_info_node *node = s->private;
struct sti_mixer *mixer = (struct sti_mixer *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "%s: (vaddr = 0x%p)",
sti_mixer_to_str(mixer), mixer->regs);
@@ -175,7 +169,6 @@ static int mixer_dbg_show(struct seq_file *s, void *arg)
mixer_dbg_mxn(s, mixer->regs + GAM_MIXER_MX0);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index 2c99016..d641a5f 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -514,13 +514,7 @@ static int tvout_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
struct drm_crtc *crtc;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
@@ -586,7 +580,6 @@ static int tvout_dbg_show(struct seq_file *s, void *data)
DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_vid.c b/drivers/gpu/drm/sti/sti_vid.c
index 5a2c5dc..cba3214 100644
--- a/drivers/gpu/drm/sti/sti_vid.c
+++ b/drivers/gpu/drm/sti/sti_vid.c
@@ -91,12 +91,6 @@ static int vid_dbg_show(struct seq_file *s, void *arg)
{
struct drm_info_node *node = s->private;
struct sti_vid *vid = (struct sti_vid *)node->info_ent->data;
- struct drm_device *dev = node->minor->dev;
- int ret;
-
- ret = mutex_lock_interruptible(&dev->struct_mutex);
- if (ret)
- return ret;
seq_printf(s, "VID: (vaddr= 0x%p)", vid->regs);
@@ -121,7 +115,6 @@ static int vid_dbg_show(struct seq_file *s, void *arg)
DBGFS_DUMP(VID_CSAT);
seq_puts(s, "\n");
- mutex_unlock(&dev->struct_mutex);
return 0;
}
--
1.9.1
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