[Nouveau] [PATCH] module parameters: permissions as defines, readable to everyone
poma
pomidorabelisima at gmail.com
Sun Apr 10 16:45:47 UTC 2016
For the purposes of the module parameters,
specifies the permissions of the corresponding files in sysfs in predefined S_I* form rather than in octal notation.
Withal it makes the source code more consistent.
Moreover, because all parameters are readable to everyone, it is more user-friendly.
$ grep S_IRUGO include/linux/stat.h
#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
$ grep 'S_IRUSR\|S_IRGRP\|S_IROTH' include/uapi/linux/stat.h
#define S_IRUSR 00400
#define S_IRGRP 00040
#define S_IROTH 00004
$ ls -l /sys/module/nouveau/parameters/
total 0
-r--r--r--. 1 root root 4096 Apr 10 17:43 config
-r--r--r--. 1 root root 4096 Apr 10 17:43 debug
-r--r--r--. 1 root root 4096 Apr 10 17:43 duallink
-r--r--r--. 1 root root 4096 Apr 10 17:43 hdmimhz
-r--r--r--. 1 root root 4096 Apr 10 17:43 ignorelid
-r--r--r--. 1 root root 4096 Apr 10 17:43 modeset
-r--r--r--. 1 root root 4096 Apr 10 17:43 noaccel
-r--r--r--. 1 root root 4096 Apr 10 17:43 nofbaccel
-r--r--r--. 1 root root 4096 Apr 10 17:43 runpm
-r--r--r--. 1 root root 4096 Apr 10 17:43 tv_disable
-r--r--r--. 1 root root 4096 Apr 10 17:43 tv_norm
-r--r--r--. 1 root root 4096 Apr 10 17:43 vram_pushbuf
$ systool -vm nouveau | grep Parameters -A 12
Parameters:
config = 28 6e 75 6c 6c 29 0a
debug = "(null)"
duallink = "1"
hdmimhz = "0"
ignorelid = "0"
modeset = "-1"
noaccel = "0"
nofbaccel = "0"
runpm = "-1"
tv_disable = "0"
tv_norm = "(null)"
vram_pushbuf = "0"
Signed-off-by: poma <pomidorabelisima at gmail.com>
---
drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_chan.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_connector.c | 8 ++++----
drivers/gpu/drm/nouveau/nouveau_drm.c | 10 +++++-----
drivers/gpu/drm/nouveau/nouveau_fbcon.c | 2 +-
5 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
index 163317d..af520d0 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
@@ -40,7 +40,7 @@ MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
"\t\tDefault: PAL\n"
"\t\t*NOTE* Ignored for cards with external TV encoders.");
static char *nouveau_tv_norm;
-module_param_named(tv_norm, nouveau_tv_norm, charp, 0400);
+module_param_named(tv_norm, nouveau_tv_norm, charp, S_IRUGO);
static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
{
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index 879655c..0bb1b9c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -43,7 +43,7 @@
MODULE_PARM_DESC(vram_pushbuf, "Create DMA push buffers in VRAM");
int nouveau_vram_pushbuf;
-module_param_named(vram_pushbuf, nouveau_vram_pushbuf, int, 0400);
+module_param_named(vram_pushbuf, nouveau_vram_pushbuf, int, S_IRUGO);
int
nouveau_channel_idle(struct nouveau_channel *chan)
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index ae96ebc..30785fb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -49,19 +49,19 @@
MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
int nouveau_tv_disable = 0;
-module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
+module_param_named(tv_disable, nouveau_tv_disable, int, S_IRUGO);
MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
int nouveau_ignorelid = 0;
-module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
+module_param_named(ignorelid, nouveau_ignorelid, int, S_IRUGO);
MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
int nouveau_duallink = 1;
-module_param_named(duallink, nouveau_duallink, int, 0400);
+module_param_named(duallink, nouveau_duallink, int, S_IRUGO);
MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
int nouveau_hdmimhz = 0;
-module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
+module_param_named(hdmimhz, nouveau_hdmimhz, int, S_IRUGO);
struct nouveau_encoder *
find_encoder(struct drm_connector *connector, int type)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index d06877d..98ead83 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -63,24 +63,24 @@
MODULE_PARM_DESC(config, "option string to pass to driver core");
static char *nouveau_config;
-module_param_named(config, nouveau_config, charp, 0400);
+module_param_named(config, nouveau_config, charp, S_IRUGO);
MODULE_PARM_DESC(debug, "debug string to pass to driver core");
static char *nouveau_debug;
-module_param_named(debug, nouveau_debug, charp, 0400);
+module_param_named(debug, nouveau_debug, charp, S_IRUGO);
MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
static int nouveau_noaccel = 0;
-module_param_named(noaccel, nouveau_noaccel, int, 0400);
+module_param_named(noaccel, nouveau_noaccel, int, S_IRUGO);
MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
"0 = disabled, 1 = enabled, 2 = headless)");
int nouveau_modeset = -1;
-module_param_named(modeset, nouveau_modeset, int, 0400);
+module_param_named(modeset, nouveau_modeset, int, S_IRUGO);
MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
int nouveau_runtime_pm = -1;
-module_param_named(runpm, nouveau_runtime_pm, int, 0400);
+module_param_named(runpm, nouveau_runtime_pm, int, S_IRUGO);
static struct drm_driver driver_stub;
static struct drm_driver driver_pci;
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 59f27e7..425b423 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -53,7 +53,7 @@
MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
int nouveau_nofbaccel = 0;
-module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
+module_param_named(nofbaccel, nouveau_nofbaccel, int, S_IRUGO);
static void
nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
--
2.4.11
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