From 9f0346dcbea363787186c94ef94dd01aaa215afa Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 5 Sep 2026 11:59:05 -0700
Subject: Merge tag 'driver-core-7.3-rc2' of
 git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core fixes from Danilo Krummrich:

 - Fix kernfs listxattr() not returning security xattr names (e.g.
   SELinux labels) when the kernfs node has no allocated kernfs_iattrs

 - Fix silent truncation of IRQ vector indices in the Rust PCI
   abstractions

 - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is
   disabled instead of silently enabling extra kernel functionality

 - Russ Weight is retiring from kernel development; update the Firmware
   Loader sysfs contact to the driver-core mailing list, add a CREDITS
   entry for Firmware Upload, and update MAINTAINERS accordingly

* tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
  MAINTAINERS: Remove Russ Weight from Firmware Loader
  CREDITS: Add CREDITS entry for Firmware Upload
  firmware_loader: Change contact for sysfs nodes
  rust: pci: reject IRQ vector indices that do not fit in u32
  kernfs: preserve security xattrs without allocating iattrs
  drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
---
 arch/sh/mm/consistent.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 arch/sh/mm/consistent.c

(limited to 'arch/sh/mm/consistent.c')

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
new file mode 100644
index 000000000..0de206c1a
--- /dev/null
+++ b/arch/sh/mm/consistent.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2004 - 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+
+static int __init memchunk_setup(char *str)
+{
+	return 1; /* accept anything that begins with "memchunk." */
+}
+__setup("memchunk.", memchunk_setup);
+
+static void __init memchunk_cmdline_override(char *name, unsigned long *sizep)
+{
+	char *p = boot_command_line;
+	int k = strlen(name);
+
+	while ((p = strstr(p, "memchunk."))) {
+		p += 9; /* strlen("memchunk.") */
+		if (!strncmp(name, p, k) && p[k] == '=') {
+			p += k + 1;
+			*sizep = memparse(p, NULL);
+			pr_info("%s: forcing memory chunk size to 0x%08lx\n",
+				name, *sizep);
+			break;
+		}
+	}
+}
+
+int __init platform_resource_setup_memory(struct platform_device *pdev,
+					  char *name, unsigned long memsize)
+{
+	struct resource *r;
+	dma_addr_t dma_handle;
+	void *buf;
+
+	r = pdev->resource + pdev->num_resources - 1;
+	if (r->flags) {
+		pr_warn("%s: unable to find empty space for resource\n", name);
+		return -EINVAL;
+	}
+
+	memchunk_cmdline_override(name, &memsize);
+	if (!memsize)
+		return 0;
+
+	buf = dma_alloc_coherent(&pdev->dev, memsize, &dma_handle, GFP_KERNEL);
+	if (!buf) {
+		pr_warn("%s: unable to allocate memory\n", name);
+		return -ENOMEM;
+	}
+
+	r->flags = IORESOURCE_MEM;
+	r->start = dma_handle;
+	r->end = r->start + memsize - 1;
+	r->name = name;
+	return 0;
+}
-- 
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