6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ingo Molnar mingo@kernel.org
[ Upstream commit 91d5451d97ce35cbd510277fa3b7abf9caa4e34d ]
The __ref_stack_chk_guard symbol doesn't exist on UP:
<stdin>:4:15: error: ‘__ref_stack_chk_guard’ undeclared here (not in a function)
Fix the #ifdef around the entry.S export.
Signed-off-by: Ingo Molnar mingo@kernel.org Cc: Brian Gerst brgerst@gmail.com Cc: Ard Biesheuvel ardb@kernel.org Cc: Uros Bizjak ubizjak@gmail.com Link: https://lore.kernel.org/r/20250123190747.745588-8-brgerst@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/entry/entry.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/entry/entry.S b/arch/x86/entry/entry.S index 78fd2442b49dc..ad292c0d971a3 100644 --- a/arch/x86/entry/entry.S +++ b/arch/x86/entry/entry.S @@ -59,7 +59,7 @@ EXPORT_SYMBOL_GPL(mds_verw_sel); * entirely in the C code, and use an alias emitted by the linker script * instead. */ -#ifdef CONFIG_STACKPROTECTOR +#if defined(CONFIG_STACKPROTECTOR) && defined(CONFIG_SMP) EXPORT_SYMBOL(__ref_stack_chk_guard); #endif #endif