[RFC PATCH V3 30/43] rv64ilp32_abi: kernel/smp: Disable CSD_LOCK_WAIT_DEBUG
From: guoren@kernel.org
Date: 2025-03-25 12:23:55
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Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
From: "Guo Ren (Alibaba DAMO Academy)" <guoren@kernel.org> The rv64ilp32 abi is based on CONFIG_64BIT, but uses ILP32 for a smaller cache & memory footprint. So, disable CSD_LOCK_WAIT_DEBUG to get smaller csd struct. Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@kernel.org> --- include/linux/smp_types.h | 2 +- lib/Kconfig.debug | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/smp_types.h b/include/linux/smp_types.h
index 2e8461af8df6..5912b694059f 100644
--- a/include/linux/smp_types.h
+++ b/include/linux/smp_types.h@@ -61,7 +61,7 @@ struct __call_single_node { unsigned int u_flags; atomic_t a_flags; }; -#ifdef CONFIG_64BIT +#if BITS_PER_LONG == 64 u16 src, dst; #endif };
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1af972a92d06..f55f0ded826c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug@@ -1613,6 +1613,7 @@ config CSD_LOCK_WAIT_DEBUG depends on DEBUG_KERNEL depends on SMP depends on 64BIT + depends on !ABI_RV64ILP32 default n help This option enables debug prints when CPUs are slow to respond
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2.40.1