Revert "microblaze_mmu_v2: Update signal returning address"



This reverts commit 8b28626a.

Offset -8 is wrong because when it is applied then one instruction
before brki r14, 8 is called again when we return.
Offset -4 is correct and brki instruction is called again.

This change came from ancient MMU kernel.

Signed-off-by: Michal Simek <monstr@monstr.eu>

parent c74c8b1d

arch/microblaze/kernel/signal.c

+0 −8

Original line number	Diff line number	Diff line
		@@ -290,15 +290,7 @@ handle_restart(struct pt_regs regs, struct k_sigaction ka, int has_handler)
		case -ERESTARTNOINTR:
		do_restart:
		/* offset of 4 bytes to re-execute trap (brki) instruction */
		#ifndef CONFIG_MMU
		regs->pc -= 4;
		#else
		/* offset of 8 bytes required = 4 for rtbd
		offset, plus 4 for size of
		"brki r14,8"
		instruction. */
		regs->pc -= 8;
		#endif
		break;
		}
		}