[PATCH v9 33/40] sg: move procfs objects to avoid forward decls

From: Douglas Gilbert <dgilbert@interlog.com>
To: linux-scsi@vger.kernel.org
Cc: martin.petersen@oracle.com, jejb@linux.vnet.ibm.com, hare@suse.de
Subject: [PATCH v9 33/40] sg: move procfs objects to avoid forward decls
Date: Tue, 21 Apr 2020 17:52:51 -0400	[thread overview]
Message-ID: <20200421215258.14348-34-dgilbert@interlog.com> (raw)
In-Reply-To: <20200421215258.14348-1-dgilbert@interlog.com>

Move the procfs related file_operations and seq_operations
definitions toward the end of the source file to minimize the
need for forward declarations of the functions they name.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
---
 drivers/scsi/sg.c | 129 +++++++++++++++++++++-------------------------
 1 file changed, 58 insertions(+), 71 deletions(-)

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index ab76150b12b4..ea411e7c85a4 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -3782,77 +3782,6 @@ sg_rq_st_str(enum sg_rq_state rq_st, bool long_str)
 #endif
 
 #if IS_ENABLED(CONFIG_SCSI_PROC_FS)     /* long, almost to end of file */
-static int sg_proc_seq_show_int(struct seq_file *s, void *v);
-
-static int sg_proc_single_open_adio(struct inode *inode, struct file *filp);
-static ssize_t sg_proc_write_adio(struct file *filp, const char __user *buffer,
-			          size_t count, loff_t *off);
-static const struct proc_ops adio_proc_ops = {
-	.proc_open	= sg_proc_single_open_adio,
-	.proc_read	= seq_read,
-	.proc_lseek	= seq_lseek,
-	.proc_write	= sg_proc_write_adio,
-	.proc_release	= single_release,
-};
-
-static int sg_proc_single_open_dressz(struct inode *inode, struct file *filp);
-static ssize_t sg_proc_write_dressz(struct file *filp, 
-		const char __user *buffer, size_t count, loff_t *off);
-static const struct proc_ops dressz_proc_ops = {
-	.proc_open	= sg_proc_single_open_dressz,
-	.proc_read	= seq_read,
-	.proc_lseek	= seq_lseek,
-	.proc_write	= sg_proc_write_dressz,
-	.proc_release	= single_release,
-};
-
-static int sg_proc_seq_show_version(struct seq_file *s, void *v);
-static int sg_proc_seq_show_devhdr(struct seq_file *s, void *v);
-static int sg_proc_seq_show_dev(struct seq_file *s, void *v);
-static void * dev_seq_start(struct seq_file *s, loff_t *pos);
-static void * dev_seq_next(struct seq_file *s, void *v, loff_t *pos);
-static void dev_seq_stop(struct seq_file *s, void *v);
-static const struct seq_operations dev_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = sg_proc_seq_show_dev,
-};
-
-static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v);
-static const struct seq_operations devstrs_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = sg_proc_seq_show_devstrs,
-};
-
-static int sg_proc_seq_show_debug(struct seq_file *s, void *v);
-static const struct seq_operations debug_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = sg_proc_seq_show_debug,
-};
-
-static int
-sg_proc_init(void)
-{
-	struct proc_dir_entry *p;
-
-	p = proc_mkdir("scsi/sg", NULL);
-	if (!p)
-		return 1;
-
-	proc_create("allow_dio", 0644, p, &adio_proc_ops);
-	proc_create_seq("debug", 0444, p, &debug_seq_ops);
-	proc_create("def_reserved_size", 0644, p, &dressz_proc_ops);
-	proc_create_single("device_hdr", 0444, p, sg_proc_seq_show_devhdr);
-	proc_create_seq("devices", 0444, p, &dev_seq_ops);
-	proc_create_seq("device_strs", 0444, p, &devstrs_seq_ops);
-	proc_create_single("version", 0444, p, sg_proc_seq_show_version);
-	return 0;
-}
 
 static int
 sg_last_dev(void)
@@ -4225,6 +4154,64 @@ sg_proc_seq_show_debug(struct seq_file *s, void *v)
 	return 0;
 }
 
+static const struct proc_ops adio_proc_ops = {
+	.proc_open      = sg_proc_single_open_adio,
+	.proc_read      = seq_read,
+	.proc_lseek     = seq_lseek,
+	.proc_write     = sg_proc_write_adio,
+	.proc_release   = single_release,
+};
+
+static const struct proc_ops dressz_proc_ops = {
+	.proc_open      = sg_proc_single_open_dressz,
+	.proc_read      = seq_read,
+	.proc_lseek     = seq_lseek,
+	.proc_write     = sg_proc_write_dressz,
+	.proc_release   = single_release,
+};
+
+static const struct seq_operations dev_seq_ops = {
+	.start = dev_seq_start,
+	.next  = dev_seq_next,
+	.stop  = dev_seq_stop,
+	.show  = sg_proc_seq_show_dev,
+};
+
+static const struct seq_operations devstrs_seq_ops = {
+	.start = dev_seq_start,
+	.next  = dev_seq_next,
+	.stop  = dev_seq_stop,
+	.show  = sg_proc_seq_show_devstrs,
+};
+
+static const struct seq_operations debug_seq_ops = {
+	.start = dev_seq_start,
+	.next  = dev_seq_next,
+	.stop  = dev_seq_stop,
+	.show  = sg_proc_seq_show_debug,
+};
+
+static int
+sg_proc_init(void)
+{
+	struct proc_dir_entry *p;
+
+	p = proc_mkdir("scsi/sg", NULL);
+	if (!p)
+		return 1;
+
+	proc_create("allow_dio", 0644, p, &adio_proc_ops);
+	proc_create_seq("debug", 0444, p, &debug_seq_ops);
+	proc_create("def_reserved_size", 0644, p, &dressz_proc_ops);
+	proc_create_single("device_hdr", 0444, p, sg_proc_seq_show_devhdr);
+	proc_create_seq("devices", 0444, p, &dev_seq_ops);
+	proc_create_seq("device_strs", 0444, p, &devstrs_seq_ops);
+	proc_create_single("version", 0444, p, sg_proc_seq_show_version);
+	return 0;
+}
+
+/* remove_proc_subtree("scsi/sg", NULL) in exit_sg() does cleanup */
+
 #endif				/* CONFIG_SCSI_PROC_FS (~400 lines back) */
 
 module_init(init_sg);
-- 
2.26.1

