add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/iommu/fsl_pamu.c
..
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@@ -1,19 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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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, write to the Free Software
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- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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  *
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  * Copyright (C) 2013 Freescale Semiconductor, Inc.
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- *
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  */
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 #define pr_fmt(fmt)    "fsl-pamu: %s: " fmt, __func__
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@@ -543,7 +531,7 @@
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 		return ~(u32)0;
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 	}
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-	for_each_node_by_type(node, "cpu") {
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+	for_each_of_cpu_node(node) {
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 		prop = of_get_property(node, "reg", &len);
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 		for (i = 0; i < len / sizeof(u32); i++) {
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 			if (be32_to_cpup(&prop[i]) == vcpu) {
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@@ -1134,7 +1122,7 @@
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 		ret = create_csd(ppaact_phys, mem_size, csd_port_id);
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 		if (ret) {
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 			dev_err(dev, "could not create coherence subdomain\n");
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-			return ret;
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+			goto error;
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 		}
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 	}
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..
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@@ -1186,10 +1174,7 @@
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 	if (irq != NO_IRQ)
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 		free_irq(irq, data);
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-	if (data) {
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-		memset(data, 0, sizeof(struct pamu_isr_data));
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-		kfree(data);
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-	}
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+	kfree_sensitive(data);
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 	if (pamu_regs)
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 		iounmap(pamu_regs);