Files
linux/drivers/gpu/drm/i915/display/intel_display_snapshot.c
Kees Cook 69050f8d6d treewide: Replace kmalloc with kmalloc_obj for non-scalar types
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 <kees@kernel.org>
2026-02-21 01:02:28 -08:00

80 lines
2.0 KiB
C

// SPDX-License-Identifier: MIT
/* Copyright © 2024 Intel Corporation */
#include <linux/slab.h>
#include <drm/drm_drv.h>
#include "intel_display_core.h"
#include "intel_display_device.h"
#include "intel_display_irq.h"
#include "intel_display_params.h"
#include "intel_display_snapshot.h"
#include "intel_dmc.h"
#include "intel_overlay.h"
struct intel_display_snapshot {
struct intel_display *display;
struct intel_display_device_info info;
struct intel_display_runtime_info runtime_info;
struct intel_display_params params;
struct intel_overlay_snapshot *overlay;
struct intel_dmc_snapshot *dmc;
struct intel_display_irq_snapshot *irq;
};
struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
{
struct intel_display_snapshot *snapshot;
snapshot = kzalloc_obj(*snapshot, GFP_ATOMIC);
if (!snapshot)
return NULL;
snapshot->display = display;
memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info));
memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
sizeof(snapshot->runtime_info));
intel_display_params_copy(&snapshot->params);
snapshot->irq = intel_display_irq_snapshot_capture(display);
snapshot->overlay = intel_overlay_snapshot_capture(display);
snapshot->dmc = intel_dmc_snapshot_capture(display);
return snapshot;
}
void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
struct drm_printer *p)
{
struct intel_display *display;
if (!snapshot)
return;
display = snapshot->display;
intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p);
intel_display_params_dump(&snapshot->params, display->drm->driver->name, p);
intel_display_irq_snapshot_print(snapshot->irq, p);
intel_overlay_snapshot_print(snapshot->overlay, p);
intel_dmc_snapshot_print(snapshot->dmc, p);
}
void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
{
if (!snapshot)
return;
intel_display_params_free(&snapshot->params);
kfree(snapshot->irq);
kfree(snapshot->overlay);
kfree(snapshot->dmc);
kfree(snapshot);
}