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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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3206a96675
When CONFIG_DEBUG_FS is disabled, the stid_fmts[] array is not referenced
anywhere, causing a W=1 warning with gcc:
In file included from drivers/gpu/drm/imagination/pvr_fw_trace.c:7:
drivers/gpu/drm/imagination/pvr_rogue_fwif_sf.h:75:39: error: 'stid_fmts' defined but not used [-Werror=unused-const-variable=]
75 | static const struct rogue_km_stid_fmt stid_fmts[] = {
| ^~~~~~~~~
Rather than adding more #ifdef blocks, address this by changing the
existing #ifdef into equivalent IS_ENABLED() checks so gcc can see
where the symbol is used but still eliminate it from the object file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Matt Coster <matt.coster@imgtec.com>
Link: https://lore.kernel.org/r/20250409122314.2848028-1-arnd@kernel.org
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
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/* Copyright (c) 2023 Imagination Technologies Ltd. */
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#ifndef PVR_FW_TRACE_H
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#define PVR_FW_TRACE_H
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#include <drm/drm_file.h>
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#include <linux/types.h>
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#include "pvr_rogue_fwif.h"
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/* Forward declaration from pvr_device.h. */
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struct pvr_device;
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/* Forward declaration from pvr_gem.h. */
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struct pvr_fw_object;
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/* Forward declarations from pvr_rogue_fwif.h */
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struct rogue_fwif_tracebuf;
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struct rogue_fwif_tracebuf_space;
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/**
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* struct pvr_fw_trace_buffer - Structure representing a trace buffer
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*/
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struct pvr_fw_trace_buffer {
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/** @buf_obj: FW buffer object representing trace buffer. */
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struct pvr_fw_object *buf_obj;
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/** @buf: Pointer to CPU mapping of trace buffer. */
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u32 *buf;
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/**
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* @tracebuf_space: Pointer to FW tracebuf_space structure for this
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* trace buffer.
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*/
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struct rogue_fwif_tracebuf_space *tracebuf_space;
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};
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/**
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* struct pvr_fw_trace - Device firmware trace data
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*/
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struct pvr_fw_trace {
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/**
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* @tracebuf_ctrl_obj: Object representing FW trace buffer control
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* structure.
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*/
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struct pvr_fw_object *tracebuf_ctrl_obj;
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/**
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* @tracebuf_ctrl: Pointer to CPU mapping of FW trace buffer control
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* structure.
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*/
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struct rogue_fwif_tracebuf *tracebuf_ctrl;
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/**
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* @buffers: Array representing the actual trace buffers owned by this
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* device.
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*/
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struct pvr_fw_trace_buffer buffers[ROGUE_FW_THREAD_MAX];
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/** @group_mask: Mask of enabled trace groups. */
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u32 group_mask;
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};
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int pvr_fw_trace_init(struct pvr_device *pvr_dev);
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void pvr_fw_trace_fini(struct pvr_device *pvr_dev);
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/* Forward declaration from <linux/dcache.h>. */
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struct dentry;
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void pvr_fw_trace_mask_update(struct pvr_device *pvr_dev, u32 old_mask,
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u32 new_mask);
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void pvr_fw_trace_debugfs_init(struct pvr_device *pvr_dev, struct dentry *dir);
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#endif /* PVR_FW_TRACE_H */
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