kernel/linux.git/drivers/gpu/drm/tegra/hub.c, branch linux-7.0.y

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

drm: include drm_print.h where needed

2025-10-31T08:34:52+00:00

There are a gazillion files that depend on drm_print.h being indirectly included via drm_buddy.h, drm_mm.h, or ttm/ttm_resource.h. In preparation for removing those includes, explicitly include drm_print.h where needed. Cc: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Signed-off-by: Jani Nikula Link: https://lore.kernel.org/r/5fe67395907be33eb5199ea6d540e29fddee71c8.1761734313.git.jani.nikula@intel.com

drm/tegra: Assign plane type before registration

2025-05-07T15:16:56+00:00

Changes to a plane's type after it has been registered aren't propagated to userspace automatically. This could possibly be achieved by updating the property, but since we can already determine which type this should be before the registration, passing in the right type from the start is a much better solution. Suggested-by: Aaron Kling Signed-off-by: Thierry Reding Cc: stable@vger.kernel.org Fixes: 473079549f27 ("drm/tegra: dc: Add Tegra186 support") Signed-off-by: Aaron Kling Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20250421-tegra-drm-primary-v2-1-7f740c4c2121@gmail.com

Get rid of 'remove_new' relic from platform driver struct

2024-12-01T23:12:43+00:00

The continual trickle of small conversion patches is grating on me, and is really not helping. Just get rid of the 'remove_new' member function, which is just an alias for the plain 'remove', and had a comment to that effect: /* * .remove_new() is a relic from a prototype conversion of .remove(). * New drivers are supposed to implement .remove(). Once all drivers are * converted to not use .remove_new any more, it will be dropped. */ This was just a tree-wide 'sed' script that replaced '.remove_new' with '.remove', with some care taken to turn a subsequent tab into two tabs to make things line up. I did do some minimal manual whitespace adjustment for places that used spaces to line things up. Then I just removed the old (sic) .remove_new member function, and this is the end result. No more unnecessary conversion noise. Signed-off-by: Linus Torvalds

drm/tegra: hub: Use fn parameter directly to fix Coccinelle warning

2024-08-28T15:28:48+00:00

The function parameter out can be used directly instead of assigning it to a temporary u64 variable first. Remove the local variable tmp2 and use the parameter out directly as the divisor in do_div() to remove the following Coccinelle/coccicheck warning reported by do_div.cocci: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead Signed-off-by: Thorsten Blum Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20240710210034.796032-2-thorsten.blum@toblux.com

drm/tegra: hub: Increase buffer size to ensure all possible values can be stored

2023-10-11T20:52:43+00:00

When converting from int to string, we must allow for up to 10-chars (2147483647). Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/tegra/hub.c: In function ‘tegra_display_hub_probe’: drivers/gpu/drm/tegra/hub.c:1106:47: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=] drivers/gpu/drm/tegra/hub.c:1106:42: note: directive argument in the range [0, 4294967294] drivers/gpu/drm/tegra/hub.c:1106:17: note: ‘snprintf’ output between 6 and 15 bytes into a destination of size 8 Signed-off-by: Lee Jones Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230824073710.2677348-16-lee@kernel.org

drm: Explicitly include correct DT includes

2023-07-21T07:12:43+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Acked-by: Sam Ravnborg Reviewed-by: Steven Price Acked-by: Liviu Dudau Reviewed-by: Kieran Bingham Acked-by: Robert Foss Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230714174545.4056287-1-robh@kernel.org

drm/tegra: hub: Convert to platform remove callback returning void

2023-04-04T12:24:41+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Signed-off-by: Thierry Reding

gpu: host1x: Make host1x_client_unregister() return void

2023-04-04T11:59:10+00:00

This function returned zero unconditionally. Make it return no value and simplify all callers accordingly. Signed-off-by: Uwe Kleine-König Acked-by: Hans Verkuil Signed-off-by: Thierry Reding