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| author | Nuoqi Gui <gnq25@mails.tsinghua.edu.cn> | 2026-09-04 12:41:55 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 12:24:25 -0700 |
| commit | 2b97956af60810cd382b86b9ce9aea421b889861 (patch) | |
| tree | 7d9b0d8a91f77e63deff23976f68555a4895346a /include/sound/sof/xtensa.h | |
| download | linux-stable-2b97956af60810cd382b86b9ce9aea421b889861.tar.gz linux-stable-2b97956af60810cd382b86b9ce9aea421b889861.zip | |
selftests/bpf: Test rhtab kptr cancellation semanticsgrafted
Resizable hash-map updates and deletions must not perform full special-field
destruction in their caller context. In particular, a referenced kptr must
remain attached to the allocation until the memory allocator destructor can
release it safely.
Add separate coverage for both affected paths. The update test stores a task
kptr, replaces the ordinary value bytes with BPF_EXIST, and verifies that the
kptr survived. The delete test removes an element and exchanges its kptr
through the still-valid map-value pointer before the allocation is reclaimed.
Both cases observe a NULL kptr when rhtab uses bpf_obj_free_fields(). They
recover and release the reference after rhtab switches to cancellation
semantics.
Signed-off-by: Nuoqi Gui <gnq25@mails.tsinghua.edu.cn>
[ kkd: Split update and delete coverage and rewrote the commit log ]
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20260904104203.345917-5-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/sound/sof/xtensa.h')
| -rw-r--r-- | include/sound/sof/xtensa.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/sound/sof/xtensa.h b/include/sound/sof/xtensa.h new file mode 100644 index 000000000..ef70f8e26 --- /dev/null +++ b/include/sound/sof/xtensa.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright(c) 2018 Intel Corporation + */ + +#ifndef __INCLUDE_SOUND_SOF_XTENSA_H__ +#define __INCLUDE_SOUND_SOF_XTENSA_H__ + +#include <sound/sof/header.h> + +/* + * Architecture specific debug + */ + +/* Xtensa Firmware Oops data */ +struct sof_ipc_dsp_oops_xtensa { + struct sof_ipc_dsp_oops_arch_hdr arch_hdr; + struct sof_ipc_dsp_oops_plat_hdr plat_hdr; + uint32_t exccause; + uint32_t excvaddr; + uint32_t ps; + uint32_t epc1; + uint32_t epc2; + uint32_t epc3; + uint32_t epc4; + uint32_t epc5; + uint32_t epc6; + uint32_t epc7; + uint32_t eps2; + uint32_t eps3; + uint32_t eps4; + uint32_t eps5; + uint32_t eps6; + uint32_t eps7; + uint32_t depc; + uint32_t intenable; + uint32_t interrupt; + uint32_t sar; + uint32_t debugcause; + uint32_t windowbase; + uint32_t windowstart; + uint32_t excsave1; + uint32_t ar[]; +} __packed; + +#endif |