As Chao pointed out [1], ENOTSUPP is used for NFS
protocol only, we should use EOPNOTSUPP instead...

[1] 
https://lore.kernel.org/lkml/108ee2f9-75dd-b8ab-8da7-b81c17baf...@huawei.com/

Reported-by: Chao Yu <yuch...@huawei.com>
Signed-off-by: Gao Xiang <gaoxian...@huawei.com>
---
 drivers/staging/erofs/decompressor.c | 2 +-
 drivers/staging/erofs/internal.h     | 6 +++---
 drivers/staging/erofs/xattr.c        | 2 +-
 drivers/staging/erofs/xattr.h        | 4 ++--
 drivers/staging/erofs/zmap.c         | 8 ++++----
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/erofs/decompressor.c 
b/drivers/staging/erofs/decompressor.c
index 5361a2bbedb6..32a811ac704a 100644
--- a/drivers/staging/erofs/decompressor.c
+++ b/drivers/staging/erofs/decompressor.c
@@ -124,7 +124,7 @@ static int lz4_decompress(struct z_erofs_decompress_req 
*rq, u8 *out)
        int ret;
 
        if (rq->inputsize > PAGE_SIZE)
-               return -ENOTSUPP;
+               return -EOPNOTSUPP;
 
        src = kmap_atomic(*rq->in);
        inputmargin = 0;
diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
index 12f737cbc0c0..0e8d58546c52 100644
--- a/drivers/staging/erofs/internal.h
+++ b/drivers/staging/erofs/internal.h
@@ -403,12 +403,12 @@ int z_erofs_map_blocks_iter(struct inode *inode,
                            struct erofs_map_blocks *map,
                            int flags);
 #else
-static inline int z_erofs_fill_inode(struct inode *inode) { return -ENOTSUPP; }
+static inline int z_erofs_fill_inode(struct inode *inode) { return 
-EOPNOTSUPP; }
 static inline int z_erofs_map_blocks_iter(struct inode *inode,
                                          struct erofs_map_blocks *map,
                                          int flags)
 {
-       return -ENOTSUPP;
+       return -EOPNOTSUPP;
 }
 #endif /* !CONFIG_EROFS_FS_ZIP */
 
@@ -516,7 +516,7 @@ void *erofs_get_pcpubuf(unsigned int pagenr);
 #else
 static inline void *erofs_get_pcpubuf(unsigned int pagenr)
 {
-       return ERR_PTR(-ENOTSUPP);
+       return ERR_PTR(-EOPNOTSUPP);
 }
 
 #define erofs_put_pcpubuf(buf) do {} while (0)
diff --git a/drivers/staging/erofs/xattr.c b/drivers/staging/erofs/xattr.c
index c5bfc9be412f..e7e5840e3f9d 100644
--- a/drivers/staging/erofs/xattr.c
+++ b/drivers/staging/erofs/xattr.c
@@ -71,7 +71,7 @@ static int init_inode_xattrs(struct inode *inode)
        if (vi->xattr_isize == sizeof(struct erofs_xattr_ibody_header)) {
                errln("xattr_isize %d of nid %llu is not supported yet",
                      vi->xattr_isize, vi->nid);
-               ret = -ENOTSUPP;
+               ret = -EOPNOTSUPP;
                goto out_unlock;
        } else if (vi->xattr_isize < sizeof(struct erofs_xattr_ibody_header)) {
                if (unlikely(vi->xattr_isize)) {
diff --git a/drivers/staging/erofs/xattr.h b/drivers/staging/erofs/xattr.h
index 63cc87e3d3f4..e20249647541 100644
--- a/drivers/staging/erofs/xattr.h
+++ b/drivers/staging/erofs/xattr.h
@@ -74,13 +74,13 @@ static inline int erofs_getxattr(struct inode *inode, int 
index,
                                 const char *name, void *buffer,
                                 size_t buffer_size)
 {
-       return -ENOTSUPP;
+       return -EOPNOTSUPP;
 }
 
 static inline ssize_t erofs_listxattr(struct dentry *dentry,
                                      char *buffer, size_t buffer_size)
 {
-       return -ENOTSUPP;
+       return -EOPNOTSUPP;
 }
 #endif /* !CONFIG_EROFS_FS_XATTR */
 
diff --git a/drivers/staging/erofs/zmap.c b/drivers/staging/erofs/zmap.c
index 5551e615e8ea..b61b9b5950ac 100644
--- a/drivers/staging/erofs/zmap.c
+++ b/drivers/staging/erofs/zmap.c
@@ -68,7 +68,7 @@ static int fill_inode_lazy(struct inode *inode)
        if (vi->z_algorithmtype[0] >= Z_EROFS_COMPRESSION_MAX) {
                errln("unknown compression format %u for nid %llu, please 
upgrade kernel",
                      vi->z_algorithmtype[0], vi->nid);
-               err = -ENOTSUPP;
+               err = -EOPNOTSUPP;
                goto unmap_done;
        }
 
@@ -79,7 +79,7 @@ static int fill_inode_lazy(struct inode *inode)
        if (vi->z_physical_clusterbits[0] != LOG_BLOCK_SIZE) {
                errln("unsupported physical clusterbits %u for nid %llu, please 
upgrade kernel",
                      vi->z_physical_clusterbits[0], vi->nid);
-               err = -ENOTSUPP;
+               err = -EOPNOTSUPP;
                goto unmap_done;
        }
 
@@ -211,7 +211,7 @@ static int unpack_compacted_index(struct 
z_erofs_maprecorder *m,
        else if (1 << amortizedshift == 2 && lclusterbits == 12)
                vcnt = 16;
        else
-               return -ENOTSUPP;
+               return -EOPNOTSUPP;
 
        encodebits = ((vcnt << amortizedshift) - sizeof(__le32)) * 8 / vcnt;
        base = round_down(eofs, vcnt << amortizedshift);
@@ -275,7 +275,7 @@ static int compacted_load_cluster_from_disk(struct 
z_erofs_maprecorder *m,
        int err;
 
        if (lclusterbits != 12)
-               return -ENOTSUPP;
+               return -EOPNOTSUPP;
 
        if (lcn >= totalidx)
                return -EINVAL;
-- 
2.17.1

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