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x86/alternative: Convert the asm ALTERNATIVE_2() macro

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Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240607111701.8366-13-bp@kernel.org
This commit is contained in:
Borislav Petkov (AMD)
2024-06-07 13:16:59 +02:00
parent a6c7a6a18b
commit 08a621fcf4
1 changed files with 0 additions and 22 deletions
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22
arch/x86/include/asm/alternative.h
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@@ -461,28 +461,6 @@ void nop_func(void);
* @feature2, it replaces @oldinstr with @feature2.
*/
.macro ALTERNATIVE_2 oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2
140:
\oldinstr
141:
.skip -((alt_max_2(new_len1, new_len2) - (old_len)) > 0) * \
(alt_max_2(new_len1, new_len2) - (old_len)),0x90
142:
.pushsection .altinstructions,"a"
altinstr_entry 140b,143f,\ft_flags1,142b-140b,144f-143f
altinstr_entry 140b,144f,\ft_flags2,142b-140b,145f-144f
.popsection
.pushsection .altinstr_replacement,"ax"
143:
\newinstr1
144:
\newinstr2
145:
.popsection
.endm
.macro N_ALTERNATIVE_2 oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2
__N_ALTERNATIVE(__N_ALTERNATIVE(\oldinstr, \newinstr1, \ft_flags1),
\newinstr2, \ft_flags2)
.endm