Commit e9d14f3f authored by Dongxu Sun's avatar Dongxu Sun Committed by Will Deacon
Browse files

arm64/signal: Use system_supports_tpidr2() to check TPIDR2 



Since commit a9d69158("arm64/sme: Implement support
for TPIDR2"), We introduced system_supports_tpidr2() for
TPIDR2 handling. Let's use the specific check instead.

No functional changes.

Signed-off-by: default avatarDongxu Sun <sundongxu3@huawei.com>
Reviewed-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230317124915.1263-2-sundongxu3@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 73e68984

arch/arm64/kernel/signal.c

+3 −3
Original line number Diff line number Diff line
@@ -651,7 +651,7 @@ static int parse_user_sigframe(struct user_ctxs *user, 
			break;



		case TPIDR2_MAGIC:

			if (!system_supports_sme())

			if (!system_supports_tpidr2())

				goto invalid;



			if (user->tpidr2)
@@ -802,7 +802,7 @@ static int restore_sigframe(struct pt_regs *regs, 
			err = restore_fpsimd_context(&user);

	}



	if (err == 0 && system_supports_sme() && user.tpidr2)

	if (err == 0 && system_supports_tpidr2() && user.tpidr2)

		err = restore_tpidr2_context(&user);



	if (err == 0 && system_supports_sme() && user.za)
@@ -974,7 +974,7 @@ static int setup_sigframe(struct rt_sigframe_user_layout *user, 
	}



	/* TPIDR2 if supported */

	if (system_supports_sme() && err == 0) {

	if (system_supports_tpidr2() && err == 0) {

		struct tpidr2_context __user *tpidr2_ctx =

			apply_user_offset(user, user->tpidr2_offset);

		err |= preserve_tpidr2_context(tpidr2_ctx);