block: loop: fix coding style issues in file format subsystem

Removes trailing whitespaces and other coding style issues in the loop file
format subsystem and all additional files regarding to its implementation.

Signed-off-by: Manuel Bentele <development@manuel-bentele.de>

8 files changed, 21 insertions, 17 deletions

diff --git a/Documentation/blockdev/loop.rst b/Documentation/blockdev/loop.rst
index a11457479cb4..3a5897a14c8b 100644
--- a/Documentation/blockdev/loop.rst
+++ b/Documentation/blockdev/loop.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 Loopback Block Device
 =====================
 
diff --git a/Documentation/driver-api/loop-file-fmt.rst b/Documentation/driver-api/loop-file-fmt.rst
index 335fde30f364..b666b19a6e39 100644
--- a/Documentation/driver-api/loop-file-fmt.rst
+++ b/Documentation/driver-api/loop-file-fmt.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 ===========================================
 Loopback block device file format subsystem
 ===========================================
@@ -48,7 +50,7 @@ Finite state machine
 
 To prevent a misuse of the internal file format API, the file format subsystem
 implements an finite state machine. The state machine consists of two states
-and a transition for each internal API function. The state 
+and a transition for each internal API function. The state
 *file_fmt_uninitialized* of a loop file format denotes that the file format is
 already allocated but not initialized. After the initialization, the file
 format's state is set to *file_fmt_initialized*. In this state, all IO related
@@ -66,7 +68,7 @@ The entire implemented finite state machine looks like the following:
 
    digraph file_fmt_states {
    	rankdir = LR;
-   	node [ shape = point,        label = "" ] ENTRY, EXIT;	
+   	node [ shape = point,        label = "" ] ENTRY, EXIT;
    	node [ shape = circle,       label = "file_fmt_uninitialized" ] UN;
    	node [ shape = doublecircle, label = "file_fmt_initialized" ]   IN;
    	subgraph helper {
diff --git a/drivers/block/loop/Kconfig b/drivers/block/loop/Kconfig
index 238ae96189d7..d227337d53bb 100644
--- a/drivers/block/loop/Kconfig
+++ b/drivers/block/loop/Kconfig
@@ -67,7 +67,7 @@ config BLK_DEV_CRYPTOLOOP
 	select CRYPTO_CBC
 	depends on BLK_DEV_LOOP
 	---help---
-	  Say Y here if you want to be able to use the ciphers that are 
+	  Say Y here if you want to be able to use the ciphers that are
 	  provided by the CryptoAPI as loop transformation. This might be
 	  used as hard disk encryption.
 
diff --git a/drivers/block/loop/loop_file_fmt.c b/drivers/block/loop/loop_file_fmt.c
index 706a0caa78c5..ff356f172b7a 100644
--- a/drivers/block/loop/loop_file_fmt.c
+++ b/drivers/block/loop/loop_file_fmt.c
@@ -197,7 +197,7 @@ int loop_file_fmt_read_aio(struct loop_file_fmt *lo_fmt,
 }
 
 int loop_file_fmt_write(struct loop_file_fmt *lo_fmt,
-		        struct request *rq)
+			struct request *rq)
 {
 	struct loop_file_fmt_ops *ops;
 
@@ -304,7 +304,7 @@ ssize_t loop_file_fmt_print_type(u32 file_fmt_type, char *file_fmt_name)
 {
 	ssize_t len = 0;
 
-	switch(file_fmt_type) {
+	switch (file_fmt_type) {
 	case LO_FILE_FMT_RAW:
 		len = sprintf(file_fmt_name, "%s", "RAW");
 		break;
diff --git a/drivers/block/loop/loop_file_fmt.h b/drivers/block/loop/loop_file_fmt.h
index cd62dee60bf7..5c0e49376e98 100644
--- a/drivers/block/loop/loop_file_fmt.h
+++ b/drivers/block/loop/loop_file_fmt.h
@@ -16,7 +16,7 @@ struct loop_file_fmt;
 
 /**
  * struct loop_file_fmt_ops - File format subsystem operations
- * 
+ *
  * Data structure representing the file format subsystem interface.
  */
 struct loop_file_fmt_ops {
@@ -73,8 +73,8 @@ struct loop_file_fmt_ops {
 
 /**
  * struct loop_file_fmt_driver - File format subsystem driver
- * 
- * Data structure to implement file format drivers for the file format 
+ *
+ * Data structure to implement file format drivers for the file format
  * subsystem.
  */
 struct loop_file_fmt_driver {
@@ -135,7 +135,7 @@ enum {
 
 /**
  * struct loop_file_fmt - Loop file format
- * 
+ *
  * Data structure to use with the file format the loop file format subsystem.
  */
 struct loop_file_fmt {
diff --git a/drivers/block/loop/loop_file_fmt_qcow_main.c b/drivers/block/loop/loop_file_fmt_qcow_main.c
index d3e456f80803..4fb786b340f7 100644
--- a/drivers/block/loop/loop_file_fmt_qcow_main.c
+++ b/drivers/block/loop/loop_file_fmt_qcow_main.c
@@ -170,7 +170,7 @@ static void __qcow_file_fmt_compression_exit(struct loop_file_fmt *lo_fmt)
 }
 
 #ifdef CONFIG_DEBUG_FS
-static void __qcow_file_fmt_header_to_buf(struct loop_file_fmt* lo_fmt,
+static void __qcow_file_fmt_header_to_buf(struct loop_file_fmt *lo_fmt,
 	const struct loop_file_fmt_qcow_header *header)
 {
 	struct loop_file_fmt_qcow_data *qcow_data = lo_fmt->private_data;
diff --git a/drivers/block/loop/loop_file_fmt_raw.c b/drivers/block/loop/loop_file_fmt_raw.c
index 1920dcf675fd..134a794cf4ad 100644
--- a/drivers/block/loop/loop_file_fmt_raw.c
+++ b/drivers/block/loop/loop_file_fmt_raw.c
@@ -108,7 +108,7 @@ out_free_page:
 }
 
 static int raw_file_fmt_read(struct loop_file_fmt *lo_fmt,
-	     	     	     struct request *rq)
+			     struct request *rq)
 {
 	struct bio_vec bvec;
 	struct req_iterator iter;
@@ -248,7 +248,7 @@ static int __raw_file_fmt_rw_aio(struct loop_file_fmt *lo_fmt,
 }
 
 static int raw_file_fmt_read_aio(struct loop_file_fmt *lo_fmt,
-			         struct request *rq)
+				 struct request *rq)
 {
 	return __raw_file_fmt_rw_aio(lo_fmt, rq, READ);
 }
@@ -341,7 +341,7 @@ static int raw_file_fmt_write(struct loop_file_fmt *lo_fmt,
 }
 
 static int raw_file_fmt_write_aio(struct loop_file_fmt *lo_fmt,
-			          struct request *rq)
+				  struct request *rq)
 {
 	return __raw_file_fmt_rw_aio(lo_fmt, rq, WRITE);
 }
diff --git a/include/uapi/linux/loop.h b/include/uapi/linux/loop.h
index 07a9db82d2bd..aa92ba7e6680 100644
--- a/include/uapi/linux/loop.h
+++ b/include/uapi/linux/loop.h
@@ -82,11 +82,11 @@ struct loop_info64 {
 /*
  * Loop file format types
  */
-#define LO_FILE_FMT_RAW		0
-#define LO_FILE_FMT_QCOW	1
-#define LO_FILE_FMT_VDI		2
+#define LO_FILE_FMT_RAW         0
+#define LO_FILE_FMT_QCOW        1
+#define LO_FILE_FMT_VDI         2
 #define LO_FILE_FMT_VMDK	3
-#define MAX_LO_FILE_FMT		LO_FILE_FMT_VMDK + 1
+#define MAX_LO_FILE_FMT         (LO_FILE_FMT_VMDK + 1)
 
 /*
  * IOCTL commands --- we will commandeer 0x4C ('L')