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* [PATCH drm/hisilicon 0/3] support reading resolutions from EDID
@ 2020-12-04  1:23 Tian Tao
  2020-12-04  1:23 ` [PATCH] drm/fsl-dcu: remove redundant platform_get_irq error message Tian Tao
                   ` (12 more replies)
  0 siblings, 13 replies; 15+ messages in thread
From: Tian Tao @ 2020-12-04  1:23 UTC (permalink / raw)
  To: airlied, daniel, tzimmermann, kraxel, alexander.deucher, tglx,
	dri-devel, xinliang.liu, linux-kernel

patch #1 add a new file to implements i2c adapters, #2 read the
resolution from the edid, if that fails, set the resolution to fixed.
patch #3 update the destroy callback function to release the i2c adapters.

Tian Tao (3):
  drm/hisilicon: Support i2c driver algorithms for bit-shift adapters
  drm/hisilicon: Features to support reading resolutions from EDID
  drm/hisilicon: Releasing Resources in the Destroy callback Function

 drivers/gpu/drm/hisilicon/hibmc/Makefile         |  2 +-
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h  | 21 ++++-
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c  | 98 ++++++++++++++++++++++++
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 45 +++++++++--
 4 files changed, 157 insertions(+), 9 deletions(-)
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c

-- 
2.7.4


^ permalink raw reply	[flat|nested] 15+ messages in thread
* [PATCH] drm/nouveau: Use vmemdup_user()
@ 2020-11-12  1:36 Tian Tao
  0 siblings, 0 replies; 15+ messages in thread
From: Tian Tao @ 2020-11-12  1:36 UTC (permalink / raw)
  To: bskeggs, airlied, daniel, sumit.semwal, christian.koenig,
	dri-devel, nouveau, linux-kernel, linux-media, linaro-mm-sig

Replace alloc and copy with vmemdup_user()

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
---
 drivers/gpu/drm/nouveau/nouveau_gem.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 787d05e..df986d9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -591,14 +591,9 @@ u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
 
 	size *= nmemb;
 
-	mem = kvmalloc(size, GFP_KERNEL);
-	if (!mem)
-		return ERR_PTR(-ENOMEM);
-
-	if (copy_from_user(mem, userptr, size)) {
-		u_free(mem);
-		return ERR_PTR(-EFAULT);
-	}
+	mem = vmemdup_user(userptr, size);
+	if (IS_ERR(mem))
+		return ERR_CAST(mem);
 
 	return mem;
 }
-- 
2.7.4


^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2020-12-04  1:24 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-04  1:23 [PATCH drm/hisilicon 0/3] support reading resolutions from EDID Tian Tao
2020-12-04  1:23 ` [PATCH] drm/fsl-dcu: remove redundant platform_get_irq error message Tian Tao
2020-12-04  1:23 ` [PATCH 1/2] drm/hisilicon: Use managed mode-config init Tian Tao
2020-12-04  1:23 ` [PATCH] drm/msm/dp: remove duplicate include statement Tian Tao
2020-12-04  1:23 ` [PATCH] drm/msm/dsi: Replace spin_lock_irqsave by spin_lock in hard IRQ Tian Tao
2020-12-04  1:23 ` [PATCH] drm/nouveau/fb/gp102-: use flexible-array member instead of zero-length array Tian Tao
2020-12-04  1:23 ` [PATCH] drm/nouveau: Use vmemdup_user() Tian Tao
2020-12-04  1:23 ` [PATCH] drm/tilcdc: Remove unnecessary THIS_MODULE Tian Tao
2020-12-04  1:23 ` [PATCH] drm/ttm: remove unused varibles Tian Tao
2020-12-04  1:23 ` [PATCH] drm/vc4: Deleted the drm_device declaration Tian Tao
2020-12-04  1:23 ` [PATCH] gpu: ipu-v3: replace spin_lock_irqsave by spin_lock in hard IRQ Tian Tao
2020-12-04  1:23 ` [PATCH 2/2] drm/hisilicon: Deletted unused local parameters Tian Tao
2020-12-04  1:23 ` [PATCH v2] drm/hisilicon: Delete the entire file hibmc_ttm.c Tian Tao
2020-12-04  1:23 ` [PATCH drm/hisilicon v3 0/2] support reading resolutions from EDID Tian Tao
  -- strict thread matches above, loose matches on Subject: below --
2020-11-12  1:36 [PATCH] drm/nouveau: Use vmemdup_user() Tian Tao

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