Subject: Re: linux-next: build warning after merge of the tip tree

From: Xin Li <[email-masked]>
Date: Thu, 1 Feb 2024 00:59:54 -0800

On 1/31/2024 4:14 PM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> produced this warning:
> 
> vmlinux.o: warning: objtool: fred_extint+0x1c: call to array_index_mask_nospec.constprop.0() leaves .noinstr.text section
> 
> Probably introduced by commit
> 
>    6786137bf8fd ("x86/fred: FRED entry/exit and dispatch code")
> 

The following patch gets rid of the warning.

Boris, should I send a format patch?

Thanks!
     Xin

diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index 0216f63a366b..fe1e7e3cc844 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -33,7 +33,7 @@
   * Returns:
   *     0 - (index < size)
   */
-static inline unsigned long array_index_mask_nospec(unsigned long index,
+static __always_inline unsigned long array_index_mask_nospec(unsigned 
long index,
  		unsigned long size)
  {
  	unsigned long mask;