diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2023-06-16 22:15:31 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-06-16 22:23:27 +0200 |
| commit | 0a9567ac5e6a40cdd9c8cd15b19a62a15250f450 (patch) | |
| tree | 0c1d3d3f37034f753d24ffac69d6d48881813250 | |
| parent | b81fac906a8f9e682e513ddd95697ec7a20878d4 (diff) | |
x86/mem_encrypt: Unbreak the AMD_MEM_ENCRYPT=n build
Moving mem_encrypt_init() broke the AMD_MEM_ENCRYPT=n because the
declaration of that function was under #ifdef CONFIG_AMD_MEM_ENCRYPT and
the obvious placement for the inline stub was the #else path.
This is a leftover of commit 20f07a044a76 ("x86/sev: Move common memory
encryption code to mem_encrypt.c") which made mem_encrypt_init() depend on
X86_MEM_ENCRYPT without moving the prototype. That did not fail back then
because there was no stub inline as the core init code had a weak function.
Move both the declaration and the stub out of the CONFIG_AMD_MEM_ENCRYPT
section and guard it with CONFIG_X86_MEM_ENCRYPT.
Fixes: 439e17576eb4 ("init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Closes: https://lore.kernel.org/oe-kbuild-all/202306170247.eQtCJPE8-lkp@intel.com/
| -rw-r--r-- | arch/x86/include/asm/mem_encrypt.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h index 98ce265f2e33..7f97a8a97e24 100644 --- a/arch/x86/include/asm/mem_encrypt.h +++ b/arch/x86/include/asm/mem_encrypt.h @@ -17,6 +17,12 @@ #include <asm/bootparam.h> +#ifdef CONFIG_X86_MEM_ENCRYPT +void __init mem_encrypt_init(void); +#else +static inline void mem_encrypt_init(void) { } +#endif + #ifdef CONFIG_AMD_MEM_ENCRYPT extern u64 sme_me_mask; @@ -51,8 +57,6 @@ void __init mem_encrypt_free_decrypted_mem(void); void __init sev_es_init_vc_handling(void); -void __init mem_encrypt_init(void); - #define __bss_decrypted __section(".bss..decrypted") #else /* !CONFIG_AMD_MEM_ENCRYPT */ @@ -85,8 +89,6 @@ early_set_mem_enc_dec_hypercall(unsigned long vaddr, int npages, bool enc) {} static inline void mem_encrypt_free_decrypted_mem(void) { } -static inline void mem_encrypt_init(void) { } - #define __bss_decrypted #endif /* CONFIG_AMD_MEM_ENCRYPT */ |