Hi Rafael,
On Thu, Dec 03, 2015 at 02:54:00PM -0800, Rafael Antognolli wrote:
> The module_init and module_exit functions will start here, and call the
> subsequent init's and exit's.
>
> Signed-off-by: Rafael Antognolli <rafael.antognolli@xxxxxxxxx>
> ---
> drivers/gpu/drm/Makefile | 4 ++-
> drivers/gpu/drm/drm_fb_helper.c | 9 +++----
> drivers/gpu/drm/drm_kms_helper_common.c | 43 +++++++++++++++++++++++++++++++++
> include/drm/drm_fb_helper.h | 6 +++++
> 4 files changed, 56 insertions(+), 6 deletions(-)
> create mode 100644 drivers/gpu/drm/drm_kms_helper_common.c
>
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index 1e9ff4c..76399da 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -24,7 +24,9 @@ drm-$(CONFIG_AGP) += drm_agpsupport.o
> drm-y += $(drm-m)
>
> drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \
> - drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o
> + drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o \
> + drm_kms_helper_common.o
> +
> drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
> drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
> drm_kms_helper-$(CONFIG_DRM_KMS_CMA_HELPER) += drm_fb_cma_helper.o
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 69cbab5..576f769 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -2175,9 +2175,9 @@ EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
> * but the module doesn't depend on any fb console symbols. At least
> * attempt to load fbcon to avoid leaving the system without a usable console.
> */
> -#if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT)
> -static int __init drm_fb_helper_modinit(void)
> +int drm_fb_helper_modinit(void)
Do keep the __init, the function can then be jettisoned once the module
has initialized and the memory occupied by it becomes available.
Kind regards,
Lukas
> {
> +#if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT)
> const char *name = "fbcon";
> struct module *fbcon;
>
> @@ -2187,8 +2187,7 @@ static int __init drm_fb_helper_modinit(void)
>
> if (!fbcon)
> request_module_nowait(name);
> +#endif
> return 0;
> }
> -
> -module_init(drm_fb_helper_modinit);
> -#endif
> +EXPORT_SYMBOL(drm_fb_helper_modinit);
> diff --git a/drivers/gpu/drm/drm_kms_helper_common.c b/drivers/gpu/drm/drm_kms_helper_common.c
> new file mode 100644
> index 0000000..920b2fb
> --- /dev/null
> +++ b/drivers/gpu/drm/drm_kms_helper_common.c
> @@ -0,0 +1,43 @@
> +/*
> + * Copyright © 2015 Intel Corporation
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the next
> + * paragraph) shall be included in all copies or substantial portions of the
> + * Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
> + * IN THE SOFTWARE.
> + *
> + * Authors:
> + * Rafael Antognolli <rafael.antognolli@xxxxxxxxx>
> + *
> + */
> +
> +#include <drm/drmP.h>
> +#include <drm/drm_fb_helper.h>
> +
> +static int __init drm_kms_helper_init(void)
> +{
> + /* Call init functions from specific kms helpers here */
> + return drm_fb_helper_modinit();
> +}
> +
> +static void __exit drm_kms_helper_exit(void)
> +{
> + /* Call exit functions from specific kms helpers here */
> +}
> +
> +module_init(drm_kms_helper_init);
> +module_exit(drm_kms_helper_exit);
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index 87b090c..4fed7a2 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -148,6 +148,7 @@ struct drm_fb_helper {
> };
>
> #ifdef CONFIG_DRM_FBDEV_EMULATION
> +int drm_fb_helper_modinit(void);
> void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
> const struct drm_fb_helper_funcs *funcs);
> int drm_fb_helper_init(struct drm_device *dev,
> @@ -212,6 +213,11 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_
> int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
> struct drm_connector *connector);
> #else
> +static inline int drm_fb_helper_modinit(void)
> +{
> + return 0;
> +}
> +
> static inline void drm_fb_helper_prepare(struct drm_device *dev,
> struct drm_fb_helper *helper,
> const struct drm_fb_helper_funcs *funcs)
> --
> 2.4.3
>
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