* [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls
@ 2016-11-27 17:09 Chris Wilson
2016-11-27 17:09 ` [PATCH 2/3] drm: Avoid NULL dereference for DRM_LEGACY debug message Chris Wilson
` (3 more replies)
0 siblings, 4 replies; 7+ messages in thread
From: Chris Wilson @ 2016-11-27 17:09 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx
Remove the ugly sparse casts by using the helper u64_to_user_ptr()
instead.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/drm_property.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index d1e50ac6f72b..24be69d29964 100644
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -729,7 +729,6 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
struct drm_mode_get_blob *out_resp = data;
struct drm_property_blob *blob;
int ret = 0;
- void __user *blob_ptr;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
@@ -739,8 +738,9 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
return -ENOENT;
if (out_resp->length == blob->length) {
- blob_ptr = (void __user *)(unsigned long)out_resp->data;
- if (copy_to_user(blob_ptr, blob->data, blob->length)) {
+ if (copy_to_user(u64_to_user_ptr(out_resp->data),
+ blob->data,
+ blob->length)) {
ret = -EFAULT;
goto unref;
}
@@ -757,7 +757,6 @@ int drm_mode_createblob_ioctl(struct drm_device *dev,
{
struct drm_mode_create_blob *out_resp = data;
struct drm_property_blob *blob;
- void __user *blob_ptr;
int ret = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
@@ -767,8 +766,9 @@ int drm_mode_createblob_ioctl(struct drm_device *dev,
if (IS_ERR(blob))
return PTR_ERR(blob);
- blob_ptr = (void __user *)(unsigned long)out_resp->data;
- if (copy_from_user(blob->data, blob_ptr, out_resp->length)) {
+ if (copy_from_user(blob->data,
+ u64_to_user_ptr(out_resp->data),
+ out_resp->length)) {
ret = -EFAULT;
goto out_blob;
}
--
2.10.2
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 2/3] drm: Avoid NULL dereference for DRM_LEGACY debug message
2016-11-27 17:09 [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Chris Wilson
@ 2016-11-27 17:09 ` Chris Wilson
2016-11-27 17:09 ` [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred() Chris Wilson
` (2 subsequent siblings)
3 siblings, 0 replies; 7+ messages in thread
From: Chris Wilson @ 2016-11-27 17:09 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx
smatch warns:
drivers/gpu/drm/drm_lock.c:188 drm_legacy_lock() warn:
variable dereferenced before check 'master->lock.hw_lock' (see line 177)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/drm_lock.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index c901f3c5b269..32d43f86a8f2 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -176,7 +176,8 @@ int drm_legacy_lock(struct drm_device *dev, void *data,
DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
lock->context, task_pid_nr(current),
- master->lock.hw_lock->lock, lock->flags);
+ master->lock.hw_lock ? master->lock.hw_lock->lock : -1,
+ lock->flags);
add_wait_queue(&master->lock.lock_queue, &entry);
spin_lock_bh(&master->lock.spinlock);
--
2.10.2
_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred()
2016-11-27 17:09 [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Chris Wilson
2016-11-27 17:09 ` [PATCH 2/3] drm: Avoid NULL dereference for DRM_LEGACY debug message Chris Wilson
@ 2016-11-27 17:09 ` Chris Wilson
2016-11-28 7:18 ` [Intel-gfx] " Daniel Vetter
2016-11-28 8:18 ` Joonas Lahtinen
2016-11-27 17:45 ` ✗ Fi.CI.BAT: warning for series starting with [1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Patchwork
2016-11-28 7:06 ` [Intel-gfx] [PATCH 1/3] " Joonas Lahtinen
3 siblings, 2 replies; 7+ messages in thread
From: Chris Wilson @ 2016-11-27 17:09 UTC (permalink / raw)
To: dri-devel; +Cc: intel-gfx
smatch correctly warns:
drivers/gpu/drm/drm_fb_helper.c:1960 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
drivers/gpu/drm/drm_fb_helper.c:2001 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/drm_fb_helper.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 851a7e30444b..3a71a03b14a9 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1945,19 +1945,20 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
bool *enabled, int width, int height)
{
struct drm_fb_helper_connector *fb_helper_conn;
- int i;
- uint64_t conn_configured = 0, mask;
+ const u64 mask = BIT_ULL(fb_helper->connector_count) - 1;
+ u64 conn_configured = 0;
int tile_pass = 0;
- mask = (1 << fb_helper->connector_count) - 1;
+ int i;
+
retry:
drm_fb_helper_for_each_connector(fb_helper, i) {
fb_helper_conn = fb_helper->connector_info[i];
- if (conn_configured & (1 << i))
+ if (conn_configured & BIT_ULL(i))
continue;
if (enabled[i] == false) {
- conn_configured |= (1 << i);
+ conn_configured |= BIT_ULL(i);
continue;
}
@@ -1998,7 +1999,7 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
}
DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
"none");
- conn_configured |= (1 << i);
+ conn_configured |= BIT_ULL(i);
}
if ((conn_configured & mask) != mask) {
--
2.10.2
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 7+ messages in thread
* ✗ Fi.CI.BAT: warning for series starting with [1/3] drm: Use u64_to_user_ptr() helper for blob ioctls
2016-11-27 17:09 [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Chris Wilson
2016-11-27 17:09 ` [PATCH 2/3] drm: Avoid NULL dereference for DRM_LEGACY debug message Chris Wilson
2016-11-27 17:09 ` [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred() Chris Wilson
@ 2016-11-27 17:45 ` Patchwork
2016-11-28 7:06 ` [Intel-gfx] [PATCH 1/3] " Joonas Lahtinen
3 siblings, 0 replies; 7+ messages in thread
From: Patchwork @ 2016-11-27 17:45 UTC (permalink / raw)
To: Chris Wilson; +Cc: intel-gfx
== Series Details ==
Series: series starting with [1/3] drm: Use u64_to_user_ptr() helper for blob ioctls
URL : https://patchwork.freedesktop.org/series/16000/
State : warning
== Summary ==
Series 16000v1 Series without cover letter
https://patchwork.freedesktop.org/api/1.0/series/16000/revisions/1/mbox/
Test gem_exec_flush:
Subgroup basic-uc-set-default:
pass -> DMESG-WARN (fi-snb-2520m)
Test kms_force_connector_basic:
Subgroup force-load-detect:
dmesg-warn -> PASS (fi-snb-2520m)
fi-bdw-5557u total:245 pass:230 dwarn:0 dfail:0 fail:0 skip:15
fi-bsw-n3050 total:245 pass:205 dwarn:0 dfail:0 fail:0 skip:40
fi-bxt-t5700 total:245 pass:217 dwarn:0 dfail:0 fail:0 skip:28
fi-byt-j1900 total:245 pass:217 dwarn:0 dfail:0 fail:0 skip:28
fi-byt-n2820 total:245 pass:213 dwarn:0 dfail:0 fail:0 skip:32
fi-hsw-4770 total:245 pass:225 dwarn:0 dfail:0 fail:0 skip:20
fi-hsw-4770r total:245 pass:225 dwarn:0 dfail:0 fail:0 skip:20
fi-ilk-650 total:245 pass:192 dwarn:0 dfail:0 fail:0 skip:53
fi-ivb-3520m total:245 pass:223 dwarn:0 dfail:0 fail:0 skip:22
fi-ivb-3770 total:245 pass:223 dwarn:0 dfail:0 fail:0 skip:22
fi-kbl-7500u total:245 pass:223 dwarn:0 dfail:0 fail:0 skip:22
fi-skl-6260u total:245 pass:231 dwarn:0 dfail:0 fail:0 skip:14
fi-skl-6700hq total:245 pass:224 dwarn:0 dfail:0 fail:0 skip:21
fi-skl-6700k total:245 pass:223 dwarn:1 dfail:0 fail:0 skip:21
fi-skl-6770hq total:245 pass:231 dwarn:0 dfail:0 fail:0 skip:14
fi-snb-2520m total:245 pass:212 dwarn:1 dfail:0 fail:0 skip:32
fi-snb-2600 total:245 pass:212 dwarn:0 dfail:0 fail:0 skip:33
c744533b1d54437a7986108711de03523d591b27 drm-tip: 2016y-11m-25d-15h-02m-01s UTC integration manifest
c7abfad drm: Avoid NULL dereference for DRM_LEGACY debug message
0dc209e drm: Use u64_to_user_ptr() helper for blob ioctls
== Logs ==
For more details see: https://intel-gfx-ci.01.org/CI/Patchwork_3118/
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [Intel-gfx] [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls
2016-11-27 17:09 [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Chris Wilson
` (2 preceding siblings ...)
2016-11-27 17:45 ` ✗ Fi.CI.BAT: warning for series starting with [1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Patchwork
@ 2016-11-28 7:06 ` Joonas Lahtinen
3 siblings, 0 replies; 7+ messages in thread
From: Joonas Lahtinen @ 2016-11-28 7:06 UTC (permalink / raw)
To: Chris Wilson, dri-devel; +Cc: intel-gfx
On su, 2016-11-27 at 17:09 +0000, Chris Wilson wrote:
> Remove the ugly sparse casts by using the helper u64_to_user_ptr()
> instead.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [Intel-gfx] [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred()
2016-11-27 17:09 ` [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred() Chris Wilson
@ 2016-11-28 7:18 ` Daniel Vetter
2016-11-28 8:18 ` Joonas Lahtinen
1 sibling, 0 replies; 7+ messages in thread
From: Daniel Vetter @ 2016-11-28 7:18 UTC (permalink / raw)
To: Chris Wilson; +Cc: intel-gfx, dri-devel
On Sun, Nov 27, 2016 at 05:09:10PM +0000, Chris Wilson wrote:
> smatch correctly warns:
>
> drivers/gpu/drm/drm_fb_helper.c:1960 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
> drivers/gpu/drm/drm_fb_helper.c:2001 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Entire series applied, thx.
-Daniel
> ---
> drivers/gpu/drm/drm_fb_helper.c | 13 +++++++------
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 851a7e30444b..3a71a03b14a9 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -1945,19 +1945,20 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
> bool *enabled, int width, int height)
> {
> struct drm_fb_helper_connector *fb_helper_conn;
> - int i;
> - uint64_t conn_configured = 0, mask;
> + const u64 mask = BIT_ULL(fb_helper->connector_count) - 1;
> + u64 conn_configured = 0;
> int tile_pass = 0;
> - mask = (1 << fb_helper->connector_count) - 1;
> + int i;
> +
> retry:
> drm_fb_helper_for_each_connector(fb_helper, i) {
> fb_helper_conn = fb_helper->connector_info[i];
>
> - if (conn_configured & (1 << i))
> + if (conn_configured & BIT_ULL(i))
> continue;
>
> if (enabled[i] == false) {
> - conn_configured |= (1 << i);
> + conn_configured |= BIT_ULL(i);
> continue;
> }
>
> @@ -1998,7 +1999,7 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
> }
> DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
> "none");
> - conn_configured |= (1 << i);
> + conn_configured |= BIT_ULL(i);
> }
>
> if ((conn_configured & mask) != mask) {
> --
> 2.10.2
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [Intel-gfx] [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred()
2016-11-27 17:09 ` [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred() Chris Wilson
2016-11-28 7:18 ` [Intel-gfx] " Daniel Vetter
@ 2016-11-28 8:18 ` Joonas Lahtinen
1 sibling, 0 replies; 7+ messages in thread
From: Joonas Lahtinen @ 2016-11-28 8:18 UTC (permalink / raw)
To: Chris Wilson, dri-devel; +Cc: intel-gfx
On su, 2016-11-27 at 17:09 +0000, Chris Wilson wrote:
> smatch correctly warns:
>
> drivers/gpu/drm/drm_fb_helper.c:1960 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
> drivers/gpu/drm/drm_fb_helper.c:2001 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2016-11-28 8:18 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-11-27 17:09 [PATCH 1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Chris Wilson
2016-11-27 17:09 ` [PATCH 2/3] drm: Avoid NULL dereference for DRM_LEGACY debug message Chris Wilson
2016-11-27 17:09 ` [PATCH 3/3] drm: Fix shift operations for drm_fb_helper::drm_target_preferred() Chris Wilson
2016-11-28 7:18 ` [Intel-gfx] " Daniel Vetter
2016-11-28 8:18 ` Joonas Lahtinen
2016-11-27 17:45 ` ✗ Fi.CI.BAT: warning for series starting with [1/3] drm: Use u64_to_user_ptr() helper for blob ioctls Patchwork
2016-11-28 7:06 ` [Intel-gfx] [PATCH 1/3] " Joonas Lahtinen
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