fix vector types in aarch64 register file structures

the ABI type for the vector registers in fpregset_t, struct
fpsimd_context, and struct user_fpsimd_struct is __uint128_t, which
was presumably originally not used because it's a nonstandard type,
but its existence is mandated by the aarch64 psABI. use of the wrong
type here broke software using these structures, and encouraged
incorrect fixes with casts rather than reinterpretation of
representation.

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/aarch64/bits/user.h b/arch/aarch64/bits/user.h
index d12cdf7f..8a1002aa 100644
--- a/arch/aarch64/bits/user.h
+++ b/arch/aarch64/bits/user.h
@@ -6,7 +6,7 @@ struct user_regs_struct {
 };
 
 struct user_fpsimd_struct {
-	long double vregs[32];
+	__uint128_t vregs[32];
 	unsigned int fpsr;
 	unsigned int fpcr;
 };