Override the generic module ELF check to provide a check for the ELF ABI version. This becomes important if we allow big-endian ELF ABI V2 builds but it doesn't hurt to check now. Cc: Jessica Yu <jeyu@xxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> [np: split patch, added changelog, adjust to Jessica's proposal] Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> --- arch/powerpc/kernel/module.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c index f6d6ae0a1692..d46bf9bfda26 100644 --- a/arch/powerpc/kernel/module.c +++ b/arch/powerpc/kernel/module.c @@ -19,6 +19,23 @@ static LIST_HEAD(module_bug_list); +#ifdef CONFIG_PPC64 +bool module_elf_check_arch(Elf_Ehdr *hdr) +{ + unsigned long abi_level = hdr->e_flags & 0x3; + + if (IS_ENABLED(CONFIG_PPC64_ELF_ABI_V2)) { + if (abi_level != 2) + return false; + } else { + if (abi_level >= 2) + return false; + } + + return true; +} +#endif + static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, const char *name) -- 2.37.2