[PW_SID:1067118] futex: Use runtime constants for futex_hash computation by linux-riscv-bot · Pull Request #1617 · linux-riscv/linux

linux-riscv-bot · 2026-03-16T06:11:34Z

PR for series 1067118 applied to workflow

Name: futex: Use runtime constants for futex_hash computation
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1067118
Version: 2

Futex hash computation requires a mask operation with read-only after init data that will be converted to a runtime constant in the subsequent commit. Introduce runtime_const_mask_32 to further optimize the mask operation in the futex hash computation hot path. [ prateek: Broke off the x86 chunk, commit message. ] Link: https://patch.msgid.link/20260227161841.GH606826@noisy.programming.kicks-ass.net Not-yet-signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Futex hash computation requires a mask operation with read-only after init data that will be converted to a runtime constant in the subsequent commit. Introduce runtime_const_mask_32 to further optimize the mask operation in the futex hash computation hot path. GCC generates a: movz w1, #lo16, lsl #0 // w1 = bits [15:0] movk w1, #hi16, lsl #16 // w1 = full 32-bit value and w0, w0, w1 // w0 = w0 & w1 pattern to tackle arbitrary 32-bit masks and the same was also suggested by Claude which is implemented here. __runtime_fixup_ptr() already patches a "movz, + movk lsl #16" sequence which has been reused to patch the same sequence for __runtime_fixup_mask(). Assisted-by: Claude:claude-sonnet-4-5 Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

The current scheme to directly patch the kernel text for runtime constants runs into the following issue with futex adapted to using runtime constants on arm64: Unable to handle kernel write to read-only memory at virtual address fff0000000378fc8 Mem abort info: ESR = 0x000000009600004e EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x0e: level 2 permission fault Data abort info: ISV = 0, ISS = 0x0000004e, ISS2 = 0x00000000 CM = 0, WnR = 1, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 swapper pgtable: 4k pages, 52-bit VAs, pgdp=00000000420a7000 [fff0000000378fc8] pgd=18000000bffff403, p4d=18000000bfffe403, pud=18000000bfffd403, pmd=0060000040200481 Internal error: Oops: 000000009600004e [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.19.0-rc6-00004-g7e6457d29e6a-dirty #291 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : futex_init+0x13c/0x348 lr : futex_init+0xc8/0x348 sp : ffff80008002bd40 x29: ffff80008002bd40 x28: ffffa4b73ba0a160 x27: ffffa4b73bd10d74 x26: ffffa4b73cb68b28 x25: ffffa4b73ba0b000 x24: ffffa4b73c66b000 x23: 0000000000003fe0 x22: 0000000000000000 x21: ffffa4b73bd10d74 x20: 0000000000008000 x19: 0000000000000000 x18: 00000000ffffffff x17: 000000007014db06 x16: ffffa4b73ca3ec08 x15: ffff80010002b937 x14: 0000000000000006 x13: fff0000077200000 x12: 00000000000002b2 x11: 00000000000000e6 x10: fff0000079e00000 x9 : fff0000077200000 x8 : fff00000034df9e0 x7 : 0000000000000200 x6 : ffffa4b73ba0b000 x5 : fff0000003510000 x4 : 0000000052803fe0 x3 : 0000000072a00000 x2 : fff0000000378fc8 x1 : ffffa4b739d78fd0 x0 : ffffa4b739d78fc8 Call trace: futex_init+0x13c/0x348 (P) do_one_initcall+0x6c/0x1b0 kernel_init_freeable+0x204/0x2e0 kernel_init+0x20/0x1d8 ret_from_fork+0x10/0x20 Code: 120b3c84 120b3c63 2a170084 2a130063 (29000c44) ---[ end trace 0000000000000000 ]--- The pc at "futex_init+0x13c/0x348" points to: futex_init() runtime_const_init(shift, __futex_shift) __runtime_fixup_shift() *p = cpu_to_le32(insn); /* <--- Here --- */ ... which points to core_initcall() being too late to patch the kernel text directly unlike the "d_hash_shift", "__names_cache" which are initialized during start_kernel() before the protections are in place. Use aarch64_insn_patch_text_nosync() to patch the runtime constants instead of doing it directly to allow for running runtime_const_init() slightly later into the boot. Since aarch64_insn_patch_text_nosync() calls caches_clean_inval_pou() internally, __runtime_fixup_caches() ends up being redundant. runtime_const_init() are rare and the overheads of multiple calls to caches_clean_inval_pou() instead of batching them together should be negligible in practice. At least one usage in kprobes.c suggests cpu_to_le32() conversion is not necessary for aarch64_insn_patch_text_nosync() unlike in the current scheme of patching *p directly. Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Futex hash computation requires a mask operation with read-only after init data that will be converted to a runtime constant in the subsequent commit. Introduce runtime_const_mask_32 to further optimize the mask operation in the futex hash computation hot path. GCC generates a: lui a0, 0x12346 # upper; +0x800 then >>12 for correct rounding addi a0, a0, 0x678 # lower 12 bits and a1, a1, a0 # a1 = a1 & a0 pattern to tackle arbitrary 32-bit masks and the same was also suggested by Claude which is implemented here. __runtime_fixup_ptr() already patches a "lui + addi" sequence which has been reused to patch the same sequence for __runtime_fixup_mask(). Assisted-by: Claude:claude-sonnet-4-5 Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Futex hash computation requires a mask operation with read-only after init data that will be converted to a runtime constant in the subsequent commit. Introduce runtime_const_mask_32 to further optimize the mask operation in the futex hash computation hot path. GCC generates a: nilf %r1,<imm32> to tackle arbitrary 32-bit masks and the same is implemented here. Immediate patching pattern for __runtime_fixup_mask() has been adopted from __runtime_fixup_ptr(). Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Add a dummy runtime_const_mask_32() for all the architectures that do not support runtime-const. Link: https://patch.msgid.link/20260227161841.GH606826@noisy.programming.kicks-ass.net Not-yet-signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Runtime constify the read-only after init data __futex_shift(shift_32), __futex_mask(mask_32), and __futex_queues(ptr) used in __futex_hash() hot path to avoid referencing global variable. This also allows __futex_queues to be allocated dynamically to "nr_node_ids" slots instead of reserving config dependent MAX_NUMNODES (1 << CONFIG_NODES_SHIFT) worth of slots upfront. No functional chages intended. [ prateek: Dynamically allocate __futex_queues, mark the global data __ro_after_init since they are constified after futex_init(). ] Link: https://patch.msgid.link/20260227161841.GH606826@noisy.programming.kicks-ass.net Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> # MAX_NUMNODES bloat Not-yet-signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

linux-riscv-bot · 2026-03-16T06:17:38Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 134.78 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:34:07Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 987.26 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:56:22Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1333.62 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:56:48Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.69 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:57:16Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.95 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:57:19Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.55 seconds
Result: WARNING
Output:

CHECK: spaces preferred around that '+' (ctx:VxV)
#32: FILE: arch/x86/include/asm/runtime-const.h:45:
+	typeof(0u+(val)) __ret = (val);				\
 	         ^

total: 0 errors, 0 warnings, 1 checks, 26 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 d17b505d3af6 ("x86/runtime-const: Introduce runtime_const_mask_32()") 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, 0 warnings, 1 checks, 26 lines checked
CHECK: spaces preferred around that '+' (ctx:VxV)

linux-riscv-bot · 2026-03-16T06:58:43Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.71 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:58:45Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:58:47Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
kdoc
Desc: Detects for kdoc errors
Duration: 0.83 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:58:49Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
module-param
Desc: Detect module_param changes
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:58:50Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.21 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T06:58:53Z

Patch 1: "[RFC,v2,1/7] x86/runtime-const: Introduce runtime_const_mask_32()"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 1.18 seconds
Result: ERROR
Output:

Commit d17b505d3af6 ("x86/runtime-const: Introduce runtime_const_mask_32()")
	author Signed-off-by missing
	author email:    peterz@infradead.org
	committer email: linux.riscv.bot@gmail.com
	Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
	Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Errors in tree with Signed-off-by, please fix!

linux-riscv-bot · 2026-03-16T07:01:25Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 137.76 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:17:57Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 990.59 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:40:15Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1336.06 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:40:41Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.89 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:41:09Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.19 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:41:12Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.72 seconds
Result: ERROR
Output:

WARNING: Non-standard signature: Assisted-by:
#22: 
Assisted-by: Claude:claude-sonnet-4-5

ERROR: Unrecognized email address: 'Claude:claude-sonnet-4-5'
#22: 
Assisted-by: Claude:claude-sonnet-4-5

ERROR: spaces required around that ':' (ctx:ExV)
#46: FILE: arch/arm64/include/asm/runtime-const.h:47:
+		:"=r" (__ret)					\
 		^

ERROR: spaces required around that ':' (ctx:ExV)
#47: FILE: arch/arm64/include/asm/runtime-const.h:48:
+		:"r" (0u+(val)));				\
 		^

CHECK: spaces preferred around that '+' (ctx:VxV)
#47: FILE: arch/arm64/include/asm/runtime-const.h:48:
+		:"r" (0u+(val)));				\
 		        ^

WARNING: Missing a blank line after declarations
#61: FILE: arch/arm64/include/asm/runtime-const.h:100:
+	__le32 *p = lm_alias(where);
+	__runtime_fixup_16(p, val);

CHECK: spaces preferred around that '+' (ctx:VxV)
#62: FILE: arch/arm64/include/asm/runtime-const.h:101:
+	__runtime_fixup_16(p+1, val >> 16);
 	                    ^

total: 3 errors, 2 warnings, 2 checks, 34 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 b236c19f8390 ("arm64/runtime-const: Introduce runtime_const_mask_32()") 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.
CHECK: spaces preferred around that '+' (ctx:VxV)
ERROR: Unrecognized email address: 'Claude:claude-sonnet-4-5'
ERROR: spaces required around that ':' (ctx:ExV)
WARNING: Missing a blank line after declarations
WARNING: Non-standard signature: Assisted-by:

linux-riscv-bot · 2026-03-16T07:42:37Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.78 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:42:39Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:42:42Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
kdoc
Desc: Detects for kdoc errors
Duration: 0.89 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T07:42:44Z

Patch 2: "[RFC,v2,2/7] arm64/runtime-const: Introduce runtime_const_mask_32()"
module-param
Desc: Detect module_param changes
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:01:18Z

Patch 5: "[RFC,v2,5/7] s390/runtime-const: Introduce runtime_const_mask_32()"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:03:46Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 134.32 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:21:04Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1036.76 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:44:16Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1390.15 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:44:42Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.43 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:45:10Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.80 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:45:13Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.72 seconds
Result: WARNING
Output:

CHECK: spaces preferred around that '&' (ctx:VxV)
#25: FILE: include/asm-generic/runtime-const.h:13:
+#define runtime_const_mask_32(val, sym) ((u32)(val)&(sym))
                                                    ^

total: 0 errors, 0 warnings, 1 checks, 7 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 6ca8173f2504 ("asm-generic/runtime-const: Add dummy runtime_const_mask_32()") 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, 0 warnings, 1 checks, 7 lines checked
CHECK: spaces preferred around that '&' (ctx:VxV)

linux-riscv-bot · 2026-03-16T10:46:38Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.36 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:46:40Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:46:42Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
kdoc
Desc: Detects for kdoc errors
Duration: 0.83 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:46:44Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
module-param
Desc: Detect module_param changes
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:46:46Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T10:46:49Z

Patch 6: "[RFC,v2,6/7] asm-generic/runtime-const: Add dummy runtime_const_mask_32()"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 1.30 seconds
Result: ERROR
Output:

Commit 6ca8173f2504 ("asm-generic/runtime-const: Add dummy runtime_const_mask_32()")
	author Signed-off-by missing
	author email:    peterz@infradead.org
	committer email: linux.riscv.bot@gmail.com
	Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
	Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Errors in tree with Signed-off-by, please fix!

linux-riscv-bot · 2026-03-16T10:49:18Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 135.51 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:08:08Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1127.71 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:35:28Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1638.64 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:35:55Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.70 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:36:23Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.84 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:36:26Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.81 seconds
Result: WARNING
Output:

WARNING: Reported-by: should be immediately followed by Closes: with a URL to the report
#20: 
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> # MAX_NUMNODES bloat
Not-yet-signed-off-by: Peter Zijlstra <peterz@infradead.org>

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#124: FILE: kernel/futex/core.c:1993:
+	BUG_ON(!futex_queues());

total: 0 errors, 2 warnings, 0 checks, 98 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 a6591361edb6 ("futex: Use runtime constants for __futex_hash() hot path") 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, 2 warnings, 0 checks, 98 lines checked
WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
WARNING: Reported-by: should be immediately followed by Closes: with a URL to the report

linux-riscv-bot · 2026-03-16T11:37:50Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.48 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:37:52Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:37:55Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
kdoc
Desc: Detects for kdoc errors
Duration: 0.88 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:37:57Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
module-param
Desc: Detect module_param changes
Duration: 0.28 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:37:58Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-03-16T11:38:03Z

Patch 7: "[RFC,v2,7/7] futex: Use runtime constants for __futex_hash() hot path"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 2.98 seconds
Result: ERROR
Output:

Commit a6591361edb6 ("futex: Use runtime constants for __futex_hash() hot path")
	author Signed-off-by missing
	author email:    peterz@infradead.org
	committer email: linux.riscv.bot@gmail.com
	Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
	Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Errors in tree with Signed-off-by, please fix!

Linux RISC-V bot and others added 8 commits March 15, 2026 20:59

Adding CI files

f389e47

linux-riscv-bot force-pushed the workflow branch 5 times, most recently from dd35e73 to da94c13 Compare March 18, 2026 23:29

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