4.19-stable patches

added patches:
	drm-remove-drm_fb_helper_modinit.patch

diff --git a/queue-4.19/drm-remove-drm_fb_helper_modinit.patch b/queue-4.19/drm-remove-drm_fb_helper_modinit.patch
new file mode 100644 (file)
index 0000000..82e5fd1
--- /dev/null
+++ b/queue-4.19/drm-remove-drm_fb_helper_modinit.patch
@@ -0,0 +1,104 @@
+From bf22c9ec39da90ce866d5f625d616f28bc733dc1 Mon Sep 17 00:00:00 2001
+From: Christoph Hellwig <hch@lst.de>
+Date: Tue, 2 Feb 2021 13:13:23 +0100
+Subject: drm: remove drm_fb_helper_modinit
+
+From: Christoph Hellwig <hch@lst.de>
+
+commit bf22c9ec39da90ce866d5f625d616f28bc733dc1 upstream.
+
+drm_fb_helper_modinit has a lot of boilerplate for what is not very
+simple functionality.  Just open code it in the only caller using
+IS_ENABLED and IS_MODULE, and skip the find_module check as a
+request_module is harmless if the module is already loaded (and not
+other caller has this find_module check either).
+
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Christoph Hellwig <hch@lst.de>
+Signed-off-by: Jessica Yu <jeyu@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpu/drm/drm_crtc_helper_internal.h |   10 ----------
+ drivers/gpu/drm/drm_fb_helper.c            |   21 ---------------------
+ drivers/gpu/drm/drm_kms_helper_common.c    |   23 +++++++++++------------
+ 3 files changed, 11 insertions(+), 43 deletions(-)
+
+--- a/drivers/gpu/drm/drm_crtc_helper_internal.h
++++ b/drivers/gpu/drm/drm_crtc_helper_internal.h
+@@ -32,16 +32,6 @@
+ #include <drm/drm_encoder.h>
+ #include <drm/drm_modes.h>
+ 
+-/* drm_fb_helper.c */
+-#ifdef CONFIG_DRM_FBDEV_EMULATION
+-int drm_fb_helper_modinit(void);
+-#else
+-static inline int drm_fb_helper_modinit(void)
+-{
+-      return 0;
+-}
+-#endif
+-
+ /* drm_dp_aux_dev.c */
+ #ifdef CONFIG_DRM_DP_AUX_CHARDEV
+ int drm_dp_aux_dev_init(void);
+--- a/drivers/gpu/drm/drm_fb_helper.c
++++ b/drivers/gpu/drm/drm_fb_helper.c
+@@ -3270,24 +3270,3 @@ int drm_fbdev_generic_setup(struct drm_d
+       return 0;
+ }
+ EXPORT_SYMBOL(drm_fbdev_generic_setup);
+-
+-/* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
+- * 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.
+- */
+-int __init drm_fb_helper_modinit(void)
+-{
+-#if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT)
+-      const char name[] = "fbcon";
+-      struct module *fbcon;
+-
+-      mutex_lock(&module_mutex);
+-      fbcon = find_module(name);
+-      mutex_unlock(&module_mutex);
+-
+-      if (!fbcon)
+-              request_module_nowait(name);
+-#endif
+-      return 0;
+-}
+-EXPORT_SYMBOL(drm_fb_helper_modinit);
+--- a/drivers/gpu/drm/drm_kms_helper_common.c
++++ b/drivers/gpu/drm/drm_kms_helper_common.c
+@@ -63,19 +63,18 @@ MODULE_PARM_DESC(edid_firmware,
+ 
+ static int __init drm_kms_helper_init(void)
+ {
+-      int ret;
++      /*
++       * The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
++       * 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 (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) &&
++          IS_MODULE(CONFIG_FRAMEBUFFER_CONSOLE) &&
++          !IS_ENABLED(CONFIG_EXPERT))
++              request_module_nowait("fbcon");
+ 
+-      /* Call init functions from specific kms helpers here */
+-      ret = drm_fb_helper_modinit();
+-      if (ret < 0)
+-              goto out;
+-
+-      ret = drm_dp_aux_dev_init();
+-      if (ret < 0)
+-              goto out;
+-
+-out:
+-      return ret;
++      return drm_dp_aux_dev_init();
+ }
+ 
+ static void __exit drm_kms_helper_exit(void)

diff --git a/queue-4.19/series b/queue-4.19/series
index 72ad407500b944c506056724fb3b5c9e4d212538..fbb14358a82449a7e2fb62d8037e33b74926cce8 100644 (file)
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -40,3 +40,4 @@ arm-cns3xxx-fix-refcount-leak-in-cns3xxx_init.patch
 modpost-fix-section-mismatch-check-for-exported-init-exit-sections.patch
 kbuild-link-vmlinux-only-once-for-config_trim_unused_ksyms-2nd-attempt.patch
 powerpc-pseries-wire-up-rng-during-setup_arch.patch
+drm-remove-drm_fb_helper_modinit.patch