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[PW_SID:1127938] bpf, riscv: add timed may_goto support#2289

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[PW_SID:1127938] bpf, riscv: add timed may_goto support#2289
linux-riscv-bot wants to merge 4 commits into
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@linux-riscv-bot linux-riscv-bot commented Jul 15, 2026

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PR for series 1127938 applied to workflow__riscv__fixes

Name: bpf, riscv: add timed may_goto support
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1127938
Version: 3

Paul Sherman and others added 4 commits July 14, 2026 19:39
riscv: smp: set CPU 0 possible in setup_smp()
caf0e4b 
setup_smp() calls set_cpu_possible() for CPUs 1..nr_cpu_ids-1 but
never for CPU 0 (the boot CPU). x86 handles this via
init_cpu_possible(cpumask_of(0)); RISC-V has no equivalent.

Without CPU 0 in cpu_possible_mask, rcu_init_one()'s
for_each_possible_cpu() loop skips it, leaving rdp->mynode=NULL.
rcutree_prepare_cpu() then dereferences NULL and hangs.

Exposed on Sophgo SG2042 (64-hart, 4-NUMA) with Linux 7.2-rc3.

Cc: stable@vger.kernel.org
Fixes: a4166ae ("riscv: Deduplicate code in setup_smp()")
Signed-off-by: Paul Sherman <shermanpauldylan@gmail.com>
Link: https://patch.msgid.link/20260714223301.5265-1-shermanpauldylan@gmail.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Adding CI files
f61148d
@flynnjiang
bpf, riscv: add support for timed may_goto
9f9ec6a 
Implement arch_bpf_timed_may_goto() for the RV64 JIT. The argument and
return value are carried in BPF_REG_AX, and BPF R0-R5 are preserved
across the call to the generic bpf_check_timed_may_goto().

Enable bpf_jit_supports_timed_may_goto() so the verifier uses the timed
expansion path.

Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
@flynnjiang
selftests/bpf: enable timed may_goto tests for riscv64
102abe0 
Enable verifier_may_goto_1 (raw instruction tests), stream_cond_break
(250ms timeout path), and the may_goto_interaction_arm64 fastcall test
on riscv64 now that the JIT supports timed may_goto.

Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 142.62 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1402.06 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1727.21 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.39 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 28.00 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 2.43 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#64: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 77 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 9f9ec6aaf7ad ("bpf, riscv: add support for timed may_goto") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 77 lines checked
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 88.89 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 5.24 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
kdoc
Desc: Detects for kdoc errors
Duration: 1.00 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
module-param
Desc: Detect module_param changes
Duration: 0.30 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 1: "[v3,1/2] bpf, riscv: add support for timed may_goto"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.32 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 142.40 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1149.70 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1411.66 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.57 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.98 seconds
Result: PASS

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linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.20 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 87.99 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.25 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
kdoc
Desc: Detects for kdoc errors
Duration: 0.91 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
module-param
Desc: Detect module_param changes
Duration: 0.27 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Jul 15, 2026

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Patch 2: "[v3,2/2] selftests/bpf: enable timed may_goto tests for riscv64"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.31 seconds
Result: PASS

@linux-riscv-bot
linux-riscv-bot force-pushed the workflow__riscv__fixes branch 2 times, most recently from 56b6f30 to 8ca72ef Compare July 15, 2026 17:25
@linux-riscv-bot
linux-riscv-bot deleted the pw1127938 branch July 16, 2026 04:03
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@linux-riscv-bot @flynnjiang