change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/fs/cramfs/inode.c
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@@ -24,6 +24,7 @@
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 #include <linux/blkdev.h>
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 #include <linux/mtd/mtd.h>
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 #include <linux/mtd/super.h>
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+#include <linux/fs_context.h>
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 #include <linux/slab.h>
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 #include <linux/vfs.h>
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 #include <linux/mutex.h>
..
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@@ -419,9 +420,12 @@
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 		int i;
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 		vma->vm_flags |= VM_MIXEDMAP;
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 		for (i = 0; i < pages && !ret; i++) {
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+			vm_fault_t vmf;
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 			unsigned long off = i * PAGE_SIZE;
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 			pfn_t pfn = phys_to_pfn_t(address + off, PFN_DEV);
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-			ret = vm_insert_mixed(vma, vma->vm_start + off, pfn);
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+			vmf = vmf_insert_mixed(vma, vma->vm_start + off, pfn);
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+			if (vmf & VM_FAULT_ERROR)
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+				ret = vm_fault_to_errno(vmf, 0);
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 		}
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 	}
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@@ -503,18 +507,19 @@
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 	kfree(sbi);
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 }
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-static int cramfs_remount(struct super_block *sb, int *flags, char *data)
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+static int cramfs_reconfigure(struct fs_context *fc)
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 {
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-	sync_filesystem(sb);
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-	*flags |= SB_RDONLY;
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+	sync_filesystem(fc->root->d_sb);
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+	fc->sb_flags |= SB_RDONLY;
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 	return 0;
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 }
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-static int cramfs_read_super(struct super_block *sb,
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-			     struct cramfs_super *super, int silent)
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+static int cramfs_read_super(struct super_block *sb, struct fs_context *fc,
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+			     struct cramfs_super *super)
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 {
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 	struct cramfs_sb_info *sbi = CRAMFS_SB(sb);
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 	unsigned long root_offset;
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+	bool silent = fc->sb_flags & SB_SILENT;
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 	/* We don't know the real size yet */
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 	sbi->size = PAGE_SIZE;
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@@ -529,7 +534,7 @@
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 		/* check for wrong endianness */
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 		if (super->magic == CRAMFS_MAGIC_WEND) {
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 			if (!silent)
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-				pr_err("wrong endianness\n");
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+				errorfc(fc, "wrong endianness");
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 			return -EINVAL;
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 		}
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@@ -541,22 +546,22 @@
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 		mutex_unlock(&read_mutex);
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 		if (super->magic != CRAMFS_MAGIC) {
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 			if (super->magic == CRAMFS_MAGIC_WEND && !silent)
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-				pr_err("wrong endianness\n");
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+				errorfc(fc, "wrong endianness");
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 			else if (!silent)
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-				pr_err("wrong magic\n");
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+				errorfc(fc, "wrong magic");
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 			return -EINVAL;
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 		}
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 	}
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 	/* get feature flags first */
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 	if (super->flags & ~CRAMFS_SUPPORTED_FLAGS) {
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-		pr_err("unsupported filesystem features\n");
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+		errorfc(fc, "unsupported filesystem features");
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 		return -EINVAL;
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 	}
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 	/* Check that the root inode is in a sane state */
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 	if (!S_ISDIR(super->root.mode)) {
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-		pr_err("root is not a directory\n");
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+		errorfc(fc, "root is not a directory");
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 		return -EINVAL;
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 	}
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 	/* correct strange, hard-coded permissions of mkcramfs */
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@@ -575,12 +580,12 @@
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 	sbi->magic = super->magic;
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 	sbi->flags = super->flags;
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 	if (root_offset == 0)
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-		pr_info("empty filesystem");
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+		infofc(fc, "empty filesystem");
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 	else if (!(super->flags & CRAMFS_FLAG_SHIFTED_ROOT_OFFSET) &&
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 		 ((root_offset != sizeof(struct cramfs_super)) &&
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 		  (root_offset != 512 + sizeof(struct cramfs_super))))
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 	{
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-		pr_err("bad root offset %lu\n", root_offset);
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+		errorfc(fc, "bad root offset %lu", root_offset);
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 		return -EINVAL;
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 	}
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@@ -594,6 +599,8 @@
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 	/* Set it all up.. */
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 	sb->s_flags |= SB_RDONLY;
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+	sb->s_time_min = 0;
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+	sb->s_time_max = 0;
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 	sb->s_op = &cramfs_ops;
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 	root = get_cramfs_inode(sb, cramfs_root, 0);
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 	if (IS_ERR(root))
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@@ -604,8 +611,7 @@
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 	return 0;
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 }
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613
 
607
-static int cramfs_blkdev_fill_super(struct super_block *sb, void *data,
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-				    int silent)
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+static int cramfs_blkdev_fill_super(struct super_block *sb, struct fs_context *fc)
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 {
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 	struct cramfs_sb_info *sbi;
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 	struct cramfs_super super;
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@@ -620,14 +626,13 @@
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 	for (i = 0; i < READ_BUFFERS; i++)
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 		buffer_blocknr[i] = -1;
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628
 
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-	err = cramfs_read_super(sb, &super, silent);
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+	err = cramfs_read_super(sb, fc, &super);
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 	if (err)
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 		return err;
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 	return cramfs_finalize_super(sb, &super.root);
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 }
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-static int cramfs_mtd_fill_super(struct super_block *sb, void *data,
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-				 int silent)
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+static int cramfs_mtd_fill_super(struct super_block *sb, struct fs_context *fc)
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 {
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 	struct cramfs_sb_info *sbi;
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 	struct cramfs_super super;
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@@ -649,7 +654,7 @@
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 	pr_info("checking physical address %pap for linear cramfs image\n",
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 		&sbi->linear_phys_addr);
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-	err = cramfs_read_super(sb, &super, silent);
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+	err = cramfs_read_super(sb, fc, &super);
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 	if (err)
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 		return err;
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@@ -685,8 +690,7 @@
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 	buf->f_bavail = 0;
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 	buf->f_files = CRAMFS_SB(sb)->files;
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 	buf->f_ffree = 0;
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-	buf->f_fsid.val[0] = (u32)id;
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-	buf->f_fsid.val[1] = (u32)(id >> 32);
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+	buf->f_fsid = u64_to_fsid(id);
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 	buf->f_namelen = CRAMFS_MAXPATHLEN;
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 	return 0;
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 }
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@@ -870,8 +874,8 @@
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 			if (unlikely(block_start & CRAMFS_BLK_FLAG_DIRECT_PTR)) {
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 				/* See comments on earlier code. */
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 				u32 prev_start = block_start;
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-			       block_start = prev_start & ~CRAMFS_BLK_FLAGS;
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-			       block_start <<= CRAMFS_BLK_DIRECT_PTR_SHIFT;
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+				block_start = prev_start & ~CRAMFS_BLK_FLAGS;
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+				block_start <<= CRAMFS_BLK_DIRECT_PTR_SHIFT;
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 				if (prev_start & CRAMFS_BLK_FLAG_UNCOMPRESSED) {
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 					block_start += PAGE_SIZE;
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 				} else {
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@@ -944,32 +948,41 @@
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 };
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 static const struct super_operations cramfs_ops = {
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-	.remount_fs	= cramfs_remount,
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 	.statfs		= cramfs_statfs,
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 };
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-static struct dentry *cramfs_mount(struct file_system_type *fs_type, int flags,
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-				   const char *dev_name, void *data)
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+static int cramfs_get_tree(struct fs_context *fc)
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 {
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-	struct dentry *ret = ERR_PTR(-ENOPROTOOPT);
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+	int ret = -ENOPROTOOPT;
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 	if (IS_ENABLED(CONFIG_CRAMFS_MTD)) {
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-		ret = mount_mtd(fs_type, flags, dev_name, data,
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-				cramfs_mtd_fill_super);
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-		if (!IS_ERR(ret))
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-			return ret;
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+		ret = get_tree_mtd(fc, cramfs_mtd_fill_super);
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+		if (!ret)
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+			return 0;
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 	}
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-	if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV)) {
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-		ret = mount_bdev(fs_type, flags, dev_name, data,
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-				 cramfs_blkdev_fill_super);
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-	}
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+	if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV))
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+		ret = get_tree_bdev(fc, cramfs_blkdev_fill_super);
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 	return ret;
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+}
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+
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+static const struct fs_context_operations cramfs_context_ops = {
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+	.get_tree	= cramfs_get_tree,
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+	.reconfigure	= cramfs_reconfigure,
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+};
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+
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+/*
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+ * Set up the filesystem mount context.
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+ */
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+static int cramfs_init_fs_context(struct fs_context *fc)
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+{
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+	fc->ops = &cramfs_context_ops;
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+	return 0;
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 }
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 static struct file_system_type cramfs_fs_type = {
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 	.owner		= THIS_MODULE,
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 	.name		= "cramfs",
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-	.mount		= cramfs_mount,
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+	.init_fs_context = cramfs_init_fs_context,
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 	.kill_sb	= cramfs_kill_sb,
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 	.fs_flags	= FS_REQUIRES_DEV,
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 };
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@@ -997,3 +1010,4 @@
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 module_init(init_cramfs_fs)
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 module_exit(exit_cramfs_fs)
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 MODULE_LICENSE("GPL");
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+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);