From: Jani Nikula
If we define drm_compat_ioctl NULL on CONFIG_COMPAT=n, we don't have to
check for the config everywhere.
Reviewed-by: Patrik Jakobsson
Signed-off-by: Jani Nikula
Signed-off-by: Sean Paul
Link: http://patchwork.freedesktop.org/patch/msgid/1478014844-27454-1-git-send-ema...
Git-commit: 55edf41b699bcb31dcf45082d99e91b7e217206e
Patch-mainline: v4.10-rc1
Signed-off-by: Matwey V. Kornilov
---
drivers/gpu/drm/ast/ast_drv.c | 2 --
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 2 --
drivers/gpu/drm/bochs/bochs_drv.c | 2 --
drivers/gpu/drm/cirrus/cirrus_drv.c | 2 --
drivers/gpu/drm/drm_fops.c | 39 ++++++++++++++++++++++++++++
drivers/gpu/drm/exynos/exynos_drm_drv.c | 2 --
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 2 --
drivers/gpu/drm/gma500/psb_drv.c | 2 --
drivers/gpu/drm/i810/i810_dma.c | 2 --
drivers/gpu/drm/i810/i810_drv.c | 2 --
drivers/gpu/drm/i915/i915_drv.c | 2 --
drivers/gpu/drm/i915/i915_drv.h | 2 ++
drivers/gpu/drm/mgag200/mgag200_drv.c | 2 --
drivers/gpu/drm/msm/msm_drv.c | 2 --
drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 --
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 --
drivers/gpu/drm/savage/savage_drv.c | 2 --
drivers/gpu/drm/shmobile/shmob_drm_drv.c | 2 --
drivers/gpu/drm/sis/sis_drv.c | 2 --
drivers/gpu/drm/sti/sti_drv.c | 2 --
drivers/gpu/drm/tdfx/tdfx_drv.c | 2 --
drivers/gpu/drm/tegra/drm.c | 2 --
drivers/gpu/drm/tilcdc/tilcdc_drv.c | 2 --
drivers/gpu/drm/udl/udl_drv.c | 2 --
drivers/gpu/drm/vc4/vc4_drv.c | 2 --
drivers/gpu/drm/via/via_drv.c | 2 --
drivers/gpu/drm/virtio/virtgpu_drv.c | 2 --
include/drm/drmP.h | 5 ++++
28 files changed, 46 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index fcd9c0714836..665e32f1ef1a 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -188,9 +188,7 @@ static const struct file_operations ast_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = ast_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.read = drm_read,
};
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 244df0a440b7..b366080be7d7 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -680,9 +680,7 @@ static const struct file_operations fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 7f1a3604b19f..f1d4cede892b 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -69,9 +69,7 @@ static const struct file_operations bochs_fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index b394e6d8f01e..a9fd2cb36963 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -125,9 +125,7 @@ static const struct file_operations cirrus_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = cirrus_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
};
static struct drm_driver driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM,
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 1ea8790e5090..7a0d8ce92101 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -44,6 +44,45 @@
/* from BKL pushdown */
DEFINE_MUTEX(drm_global_mutex);
+/**
+ * DOC: file operations
+ *
+ * Drivers must define the file operations structure that forms the DRM
+ * userspace API entry point, even though most of those operations are
+ * implemented in the DRM core. The mandatory functions are drm_open(),
+ * drm_read(), drm_ioctl() and drm_compat_ioctl() if CONFIG_COMPAT is enabled
+ * (note that drm_compat_ioctl will be NULL if CONFIG_COMPAT=n). Drivers which
+ * implement private ioctls that require 32/64 bit compatibility support must
+ * provide their own .compat_ioctl() handler that processes private ioctls and
+ * calls drm_compat_ioctl() for core ioctls.
+ *
+ * In addition drm_read() and drm_poll() provide support for DRM events. DRM
+ * events are a generic and extensible means to send asynchronous events to
+ * userspace through the file descriptor. They are used to send vblank event and
+ * page flip completions by the KMS API. But drivers can also use it for their
+ * own needs, e.g. to signal completion of rendering.
+ *
+ * The memory mapping implementation will vary depending on how the driver
+ * manages memory. Legacy drivers will use the deprecated drm_legacy_mmap()
+ * function, modern drivers should use one of the provided memory-manager
+ * specific implementations. For GEM-based drivers this is drm_gem_mmap().
+ *
+ * No other file operations are supported by the DRM userspace API. Overall the
+ * following is an example #file_operations structure::
+ *
+ * static const example_drm_fops = {
+ * .owner = THIS_MODULE,
+ * .open = drm_open,
+ * .release = drm_release,
+ * .unlocked_ioctl = drm_ioctl,
+ * .compat_ioctl = drm_compat_ioctl, // NULL if CONFIG_COMPAT=n
+ * .poll = drm_poll,
+ * .read = drm_read,
+ * .llseek = no_llseek,
+ * .mmap = drm_gem_mmap,
+ * };
+ */
+
static int drm_open_helper(struct file *filp, struct drm_minor *minor);
static int drm_setup(struct drm_device * dev)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 2c6019d6a205..1eb1afca3a78 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -433,9 +433,7 @@ static const struct file_operations exynos_drm_driver_fops = {
.poll = drm_poll,
.read = drm_read,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.release = drm_release,
};
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
index 1930234ba5f1..d90da19e5f79 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -177,9 +177,7 @@ static const struct file_operations fsl_dcu_drm_fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index db98ab5cde3d..5cd0b56cb028 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -484,9 +484,7 @@ static const struct file_operations psb_gem_fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = psb_unlocked_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.mmap = drm_gem_mmap,
.poll = drm_poll,
.read = drm_read,
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index d91856779beb..ab4e6cbe1f8b 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -113,9 +113,7 @@ static const struct file_operations i810_buffer_fops = {
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.mmap = i810_mmap_buffers,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index 44f4a131c8dd..3c4a49747376 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -49,9 +49,7 @@ static const struct file_operations i810_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = drm_legacy_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0f426c2b0763..03c4bac043ba 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1766,9 +1766,7 @@ static const struct file_operations i915_driver_fops = {
.mmap = drm_gem_mmap,
.poll = drm_poll,
.read = drm_read,
-#ifdef CONFIG_COMPAT
.compat_ioctl = i915_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4e266197fd4b..93e5ecb46242 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2721,6 +2721,8 @@ extern void i915_driver_postclose(struct drm_device *dev,
#ifdef CONFIG_COMPAT
extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
+#else
+#define i915_compat_ioctl NULL
#endif
extern int intel_gpu_reset(struct drm_device *dev);
extern bool intel_has_gpu_reset(struct drm_device *dev);
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 44ec86e25d34..d656f1b983bc 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -126,9 +126,7 @@ static const struct file_operations mgag200_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = mgag200_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.read = drm_read,
};
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index b88ce514eb8e..d10cc9d1c5db 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -948,9 +948,7 @@ static const struct file_operations fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 40422f6b645e..c8e583b56379 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -257,9 +257,7 @@ static const struct file_operations rcar_du_fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 90155b3a5fd1..b376e92fdee6 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -263,9 +263,7 @@ static const struct file_operations rockchip_drm_driver_fops = {
.poll = drm_poll,
.read = drm_read,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.release = drm_release,
};
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index 21aed1febeb4..a1686d35a74f 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -42,9 +42,7 @@ static const struct file_operations savage_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = drm_legacy_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
index 04e66e3751b4..440c590fc42d 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -252,9 +252,7 @@ static const struct file_operations shmob_drm_fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index 79bce76cb8f7..4ce48c2b199f 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -72,9 +72,7 @@ static const struct file_operations sis_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = drm_legacy_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 1469987949d8..cd1847829ff6 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -174,9 +174,7 @@ static const struct file_operations sti_driver_fops = {
.poll = drm_poll,
.read = drm_read,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.release = drm_release,
};
diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c
index fab5ebcb0fef..fe5682bc5e4a 100644
--- a/drivers/gpu/drm/tdfx/tdfx_drv.c
+++ b/drivers/gpu/drm/tdfx/tdfx_drv.c
@@ -49,9 +49,7 @@ static const struct file_operations tdfx_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = drm_legacy_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 159ef515cab1..ab6bea2d189e 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -803,9 +803,7 @@ static const struct file_operations tegra_drm_fops = {
.mmap = tegra_drm_mmap,
.poll = drm_poll,
.read = drm_read,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 876cad58b1f9..3186555eb048 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -543,9 +543,7 @@ static const struct file_operations fops = {
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index d5728ec85254..844818037908 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -30,9 +30,7 @@ static const struct file_operations udl_driver_fops = {
.read = drm_read,
.unlocked_ioctl = drm_ioctl,
.release = drm_release,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 8f7ee01a28d5..b3c51ce6f579 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -59,9 +59,7 @@ static const struct file_operations vc4_drm_fops = {
.mmap = vc4_mmap,
.poll = drm_poll,
.read = drm_read,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index ed8aa8ff861a..b94f9a61f547 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -64,9 +64,7 @@ static const struct file_operations via_driver_fops = {
.unlocked_ioctl = drm_ioctl,
.mmap = drm_legacy_mmap,
.poll = drm_poll,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
index a2f92a718f9b..00ef8dfc9d84 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -108,9 +108,7 @@ static const struct file_operations virtio_gpu_driver_fops = {
.read = drm_read,
.unlocked_ioctl = drm_ioctl,
.release = drm_release,
-#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
-#endif
.llseek = noop_llseek,
};
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 243dcbff965b..2ed154322d79 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -915,8 +915,13 @@ static inline bool drm_is_primary_client(const struct drm_file *file_priv)
extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv);
extern long drm_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg);
+#ifdef CONFIG_COMPAT
extern long drm_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg);
+#else
+/* Let drm_compat_ioctl be assigned to .compat_ioctl unconditionally */
+#define drm_compat_ioctl NULL
+#endif
extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
/* Device support (drm_fops.h) */
--
2.12.0
--
To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org
To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org