modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/sh/kernel/traps_32.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * 'traps.c' handles hardware traps and faults after we have saved some
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  * state in 'entry.S'.
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@@ -6,10 +7,6 @@
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  *                  Copyright (C) 2000 Philipp Rumpf
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  *                  Copyright (C) 2000 David Howells
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  *                  Copyright (C) 2002 - 2010 Paul Mundt
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- *
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- * This file is subject to the terms and conditions of the GNU General Public
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- * License.  See the file "COPYING" in the main directory of this archive
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- * for more details.
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  */
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 #include <linux/kernel.h>
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 #include <linux/ptrace.h>
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@@ -485,8 +482,6 @@
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 	error_code = lookup_exception_vector();
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 #endif
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-	oldfs = get_fs();
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-
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 	if (user_mode(regs)) {
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 		int si_code = BUS_ADRERR;
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 		unsigned int user_action;
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@@ -494,13 +489,13 @@
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 		local_irq_enable();
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 		inc_unaligned_user_access();
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-		set_fs(USER_DS);
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+		oldfs = force_uaccess_begin();
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 		if (copy_from_user(&instruction, (insn_size_t *)(regs->pc & ~1),
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 				   sizeof(instruction))) {
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-			set_fs(oldfs);
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+			force_uaccess_end(oldfs);
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 			goto uspace_segv;
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 		}
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-		set_fs(oldfs);
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+		force_uaccess_end(oldfs);
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 		/* shout about userspace fixups */
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 		unaligned_fixups_notify(current, instruction, regs);
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@@ -523,11 +518,11 @@
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 			goto uspace_segv;
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 		}
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-		set_fs(USER_DS);
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+		oldfs = force_uaccess_begin();
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 		tmp = handle_unaligned_access(instruction, regs,
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 					      &user_mem_access, 0,
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 					      address);
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-		set_fs(oldfs);
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+		force_uaccess_end(oldfs);
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 		if (tmp == 0)
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 			return; /* sorted */
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@@ -536,7 +531,7 @@
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 		       "access (PC %lx PR %lx)\n", current->comm, regs->pc,
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 		       regs->pr);
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-		force_sig_fault(SIGBUS, si_code, (void __user *)address, current);
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+		force_sig_fault(SIGBUS, si_code, (void __user *)address);
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 	} else {
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 		inc_unaligned_kernel_access();
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@@ -606,7 +601,7 @@
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 		/* Let gcc know unhandled cases don't make it past here */
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 		return;
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 	}
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-	force_sig_fault(SIGFPE, code, NULL, current);
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+	force_sig_fault(SIGFPE, code, NULL);
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 }
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 #endif
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@@ -614,7 +609,6 @@
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 {
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 	struct pt_regs *regs = current_pt_regs();
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 	unsigned long error_code;
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-	struct task_struct *tsk = current;
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 #ifdef CONFIG_SH_FPU_EMU
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 	unsigned short inst = 0;
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@@ -636,7 +630,7 @@
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 		/* Enable DSP mode, and restart instruction. */
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 		regs->sr |= SR_DSP;
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 		/* Save DSP mode */
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-		tsk->thread.dsp_status.status |= SR_DSP;
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+		current->thread.dsp_status.status |= SR_DSP;
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 		return;
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 	}
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 #endif
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@@ -644,7 +638,7 @@
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 	error_code = lookup_exception_vector();
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 	local_irq_enable();
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-	force_sig(SIGILL, tsk);
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+	force_sig(SIGILL);
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 	die_if_no_fixup("reserved instruction", regs, error_code);
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 }
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644
 
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@@ -700,7 +694,6 @@
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 {
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 	struct pt_regs *regs = current_pt_regs();
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 	unsigned long inst;
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-	struct task_struct *tsk = current;
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 	if (kprobe_handle_illslot(regs->pc) == 0)
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 		return;
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@@ -719,7 +712,7 @@
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 	inst = lookup_exception_vector();
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 	local_irq_enable();
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-	force_sig(SIGILL, tsk);
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+	force_sig(SIGILL);
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 	die_if_no_fixup("illegal slot instruction", regs, inst);
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 }
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