disable pwm7

hc

2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a

 kernel/arch/arm64/kernel/signal32.c
..
..
@@ -1,21 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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2
 /*
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  * Based on arch/arm/kernel/signal.c
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  *
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  * Copyright (C) 1995-2009 Russell King
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  * Copyright (C) 2012 ARM Ltd.
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  * Modified by Will Deacon <will.deacon@arm.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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8
  */
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9
 
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 #include <linux/compat.h>
..
..
@@ -234,7 +223,7 @@
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 	err |= !valid_user_regs(&regs->user_regs, current);
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224
 
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 	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
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-	if (err == 0)
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+	if (err == 0 && system_supports_fpsimd())
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 		err |= compat_restore_vfp_context(&aux->vfp);
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 	return err;
..
..
@@ -258,7 +247,7 @@
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247
 
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 	frame = (struct compat_sigframe __user *)regs->compat_sp;
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249
 
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-	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
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+	if (!access_ok(frame, sizeof (*frame)))
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 		goto badframe;
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252
 
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 	if (compat_restore_sigframe(regs, frame))
..
..
@@ -289,7 +278,7 @@
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 	frame = (struct compat_rt_sigframe __user *)regs->compat_sp;
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-	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
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+	if (!access_ok(frame, sizeof (*frame)))
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 		goto badframe;
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283
 
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 	if (compat_restore_sigframe(regs, &frame->sig))
..
..
@@ -320,7 +309,7 @@
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 	/*
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 	 * Check that we can actually write to the signal frame.
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 	 */
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-	if (!access_ok(VERIFY_WRITE, frame, framesize))
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+	if (!access_ok(frame, framesize))
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 		frame = NULL;
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314
 
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 	return frame;
..
..
@@ -353,38 +342,13 @@
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 		retcode = ptr_to_compat(ka->sa.sa_restorer);
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 	} else {
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 		/* Set up sigreturn pointer */
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-#ifdef CONFIG_COMPAT_VDSO
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-		void *vdso_base = current->mm->context.vdso;
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-		void *vdso_trampoline;
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-
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-		if (ka->sa.sa_flags & SA_SIGINFO) {
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-			if (thumb) {
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-				vdso_trampoline = VDSO_SYMBOL(vdso_base,
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-							compat_rt_sigreturn_thumb);
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-			} else {
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-				vdso_trampoline = VDSO_SYMBOL(vdso_base,
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-							compat_rt_sigreturn_arm);
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-			}
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-		} else {
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-			if (thumb) {
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-				vdso_trampoline = VDSO_SYMBOL(vdso_base,
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-							compat_sigreturn_thumb);
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-			} else {
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-				vdso_trampoline = VDSO_SYMBOL(vdso_base,
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-							compat_sigreturn_arm);
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-			}
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-		}
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-
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-		retcode = ptr_to_compat(vdso_trampoline) + thumb;
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-#else
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 		unsigned int idx = thumb << 1;
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346
 
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 		if (ka->sa.sa_flags & SA_SIGINFO)
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 			idx += 3;
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349
 
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-		retcode = (unsigned long)current->mm->context.vdso +
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+		retcode = (unsigned long)current->mm->context.sigpage +
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 			  (idx << 2) + thumb;
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-#endif
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 	}
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353
 
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 	regs->regs[0]	= usig;
..
..
@@ -430,7 +394,7 @@
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394
 
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 	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
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396
 
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-	if (err == 0)
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+	if (err == 0 && system_supports_fpsimd())
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 		err |= compat_preserve_vfp_context(&aux->vfp);
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 	__put_user_error(0, &aux->end_magic, err);
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