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  1. 25 Mar, 2022 30 commits
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  11. 15 Mar, 2022 5 commits
    • Ville Syrjälä's avatar
      drm/amdgpu: Use drm_mode_copy() · 426c89aa
      Ville Syrjälä authored 
      struct drm_display_mode embeds a list head, so overwriting
the full struct with another one will corrupt the list
(if the destination mode is on a list). Use drm_mode_copy()
instead which explicitly preserves the list head of
the destination mode.

Even if we know the destination mode is not on any list
using drm_mode_copy() seems decent as it sets a good
example. Bad examples of not using it might eventually
get copied into code where preserving the list head
actually matters.

Obviously one case not covered here is when the mode
itself is embedded in a larger structure and the whole
structure is copied. But if we are careful when copying
into modes embedded in structures I think we can be a
little more reassured that bogus list heads haven't been
propagated in.

@is_mode_copy@
@@
drm_mode_copy(...)
{
...
}

@depends on !is_mode_copy@
struct drm_display_mode *mode;
expression E, S;
@@
(
- *mode = E
+ drm_mode_copy(mode, &E)
|
- memcpy(mode, E, S)
+ drm_mode_copy(mode, E)
)

@depends on !is_mode_copy@
struct drm_display_mode mode;
expression E;
@@
(
- mode = E
+ drm_mode_copy(&mode, &E)
|
- memcpy(&mode, E, S)
+ drm_mode_copy(&mode, E)
)

@@
struct drm_display_mode *mode;
@@
- &*mode
+ mode

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      426c89aa
    • Ville Syrjälä's avatar
      drm/radeon: Use drm_mode_copy() · 606d5877
      Ville Syrjälä authored 
      struct drm_display_mode embeds a list head, so overwriting
the full struct with another one will corrupt the list
(if the destination mode is on a list). Use drm_mode_copy()
instead which explicitly preserves the list head of
the destination mode.

Even if we know the destination mode is not on any list
using drm_mode_copy() seems decent as it sets a good
example. Bad examples of not using it might eventually
get copied into code where preserving the list head
actually matters.

Obviously one case not covered here is when the mode
itself is embedded in a larger structure and the whole
structure is copied. But if we are careful when copying
into modes embedded in structures I think we can be a
little more reassured that bogus list heads haven't been
propagated in.

@is_mode_copy@
@@
drm_mode_copy(...)
{
...
}

@depends on !is_mode_copy@
struct drm_display_mode *mode;
expression E, S;
@@
(
- *mode = E
+ drm_mode_copy(mode, &E)
|
- memcpy(mode, E, S)
+ drm_mode_copy(mode, E)
)

@depends on !is_mode_copy@
struct drm_display_mode mode;
expression E;
@@
(
- mode = E
+ drm_mode_copy(&mode, &E)
|
- memcpy(&mode, E, S)
+ drm_mode_copy(&mode, E)
)

@@
struct drm_display_mode *mode;
@@
- &*mode
+ mode

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      606d5877
    • Paul Menzel's avatar
      drm/amdgpu: Use ternary operator in `vcn_v1_0_start()` · 07d01469
      Paul Menzel authored 
      Remove the boilerplate of declaring a variable and using an if else
statement by using the ternary operator.
Reviewed-by: default avatarJames Zhu <James.Zhu@amd.com>
Signed-off-by: default avatarPaul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      07d01469
    • Ville Syrjälä's avatar
      drm/amdgpu: Remove pointless on stack mode copies · 1cbd7887
      Ville Syrjälä authored 
      These on stack copies of the modes appear to be pointless.
Just look at the originals directly.

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: Nikola Cornij <nikola.cornij@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      1cbd7887
    • Dan Carpenter's avatar
      drm/amd/pm: fix indenting in __smu_cmn_reg_print_error() · 508a47d4
      Dan Carpenter authored 
      Smatch complains that the dev_err_ratelimited() is indented one tab more
than the surrounding lines.

	drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu_cmn.c:174
	__smu_cmn_reg_print_error() warn: inconsistent indenting

It looks like it's not a bug, just that the indenting needs to be cleaned
up.
Reviewed-by: default avatarLuben Tuikov <luben.tuikov@amd.com>
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      508a47d4
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