From: K Prateek Nayak <kprateek.nayak@amd.com>
To: Arnd Bergmann <arnd@arndb.de>, Thomas Gleixner <tglx@kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
Charlie Jenkins <thecharlesjenkins@gmail.com>
Cc: "Darren Hart" <dvhart@infradead.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"André Almeida" <andrealmeid@igalia.com>,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-s390@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
"K Prateek Nayak" <kprateek.nayak@amd.com>
Subject: [PATCH v6 7/8] asm-generic/runtime-const: Add dummy runtime_const_mask_32()
Date: Tue, 28 Jul 2026 05:25:39 +0000 [thread overview]
Message-ID: <20260728052540.4728-8-kprateek.nayak@amd.com> (raw)
In-Reply-To: <20260728052540.4728-1-kprateek.nayak@amd.com>
From: Peter Zijlstra <peterz@infradead.org>
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
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
---
changelog v5..v6:
o Picked up tags from Charlie. (Thanks a ton!)
o Picked up Peter's S-o-b from his tree.
---
include/asm-generic/runtime-const.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/asm-generic/runtime-const.h b/include/asm-generic/runtime-const.h
index 670499459514..03e6e3e02401 100644
--- a/include/asm-generic/runtime-const.h
+++ b/include/asm-generic/runtime-const.h
@@ -10,6 +10,7 @@
*/
#define runtime_const_ptr(sym) (sym)
#define runtime_const_shift_right_32(val, sym) ((u32)(val)>>(sym))
+#define runtime_const_mask_32(val, sym) ((u32)(val)&(sym))
#define runtime_const_init(type,sym) do { } while (0)
#endif
--
2.34.1
next prev parent reply other threads:[~2026-07-28 5:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-28 5:25 [PATCH v6 0/8] futex: Use runtime constants for futex_hash computation K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 1/8] x86/runtime-const: Introduce runtime_const_mask_32() K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 2/8] arm64/runtime-const: Use aarch64_insn_patch_text_nosync() for patching K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 3/8] arm64/runtime-const: Introduce runtime_const_mask_32() K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 4/8] riscv/runtime-const: Replace open-coded placeholder with RUNTIME_MAGIC K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 5/8] riscv/runtime-const: Introduce runtime_const_mask_32() K Prateek Nayak
2026-07-28 5:25 ` [PATCH v6 6/8] s390/runtime-const: " K Prateek Nayak
2026-07-28 5:25 ` K Prateek Nayak [this message]
2026-07-28 5:25 ` [PATCH v6 8/8] futex: Use runtime constants for __futex_hash() hot path K Prateek Nayak
2026-07-28 10:46 ` Peter Zijlstra
2026-07-28 11:08 ` Peter Zijlstra
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