From: Jiri Slaby <jslaby@suse.cz>
To: gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH 04/16] vc_screen: document and cleanup vcs_vc
Date: Tue, 18 Aug 2020 10:56:54 +0200 [thread overview]
Message-ID: <20200818085706.12163-4-jslaby@suse.cz> (raw)
In-Reply-To: <20200818085706.12163-1-jslaby@suse.cz>
Document parameters of vcs_vc and make viewed a bool.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/tty/vt/vc_screen.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 778f83ea2249..adc3c786b621 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -177,12 +177,14 @@ vcs_poll_data_get(struct file *file)
return poll;
}
-/*
- * Returns VC for inode.
+/**
+ * vcs_vc -- return VC for @inode
+ * @inode: inode for which to return a VC
+ * @viewed: returns whether this console is currently foreground (viewed)
+ *
* Must be called with console_lock.
*/
-static struct vc_data*
-vcs_vc(struct inode *inode, int *viewed)
+static struct vc_data *vcs_vc(struct inode *inode, bool *viewed)
{
unsigned int currcons = console(inode);
@@ -191,11 +193,11 @@ vcs_vc(struct inode *inode, int *viewed)
if (currcons == 0) {
currcons = fg_console;
if (viewed)
- *viewed = 1;
+ *viewed = true;
} else {
currcons--;
if (viewed)
- *viewed = 0;
+ *viewed = false;
}
return vc_cons[currcons].d;
}
@@ -247,10 +249,11 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
struct vc_data *vc;
struct vcs_poll_data *poll;
long pos, read;
- int attr, uni_mode, row, col, maxcol, viewed;
+ int attr, uni_mode, row, col, maxcol;
unsigned short *org = NULL;
ssize_t ret;
char *con_buf;
+ bool viewed;
con_buf = (char *) __get_free_page(GFP_KERNEL);
if (!con_buf)
@@ -451,10 +454,11 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
long pos;
long attr, size, written;
char *con_buf0;
- int col, maxcol, viewed;
+ int col, maxcol;
u16 *org0 = NULL, *org = NULL;
size_t ret;
char *con_buf;
+ bool viewed;
if (use_unicode(inode))
return -EOPNOTSUPP;
--
2.28.0
next prev parent reply other threads:[~2020-08-18 8:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-18 8:56 [PATCH 01/16] vt: make vc_data pointers const in selection.h Jiri Slaby
2020-08-18 8:56 ` [PATCH 02/16] vt: declare xy for get/putconsxy properly Jiri Slaby
2020-08-18 11:43 ` Greg KH
2020-08-19 7:09 ` Jiri Slaby
2020-08-18 8:56 ` [PATCH 03/16] vc: propagate "viewed as bool" from screenpos up Jiri Slaby
2020-08-18 8:56 ` Jiri Slaby [this message]
2020-08-18 8:56 ` [PATCH 05/16] vc_screen: rewrite vcs_size to accept vc, not inode Jiri Slaby
2020-08-18 8:56 ` [PATCH 06/16] vc_screen: sanitize types in vcs_write Jiri Slaby
2020-08-18 8:56 ` [PATCH 07/16] vc_screen: extract vcs_write_buf_noattr Jiri Slaby
2020-08-18 8:56 ` [PATCH 08/16] vc_screen: extract vcs_write_buf Jiri Slaby
2020-08-18 8:56 ` [PATCH 09/16] vc_screen: eliminate ifdefs from vcs_write_buf Jiri Slaby
2020-08-18 8:57 ` [PATCH 10/16] vc_screen: sanitize types in vcs_read Jiri Slaby
2020-08-18 8:57 ` [PATCH 11/16] vs_screen: kill tmp_count from vcs_read Jiri Slaby
2020-08-18 8:57 ` [PATCH 12/16] vc_screen: extract vcs_read_buf_uni Jiri Slaby
2020-08-18 8:57 ` [PATCH 13/16] vc_screen: extract vcs_read_buf_noattr Jiri Slaby
2020-08-18 8:57 ` [PATCH 14/16] vc_screen: extract vcs_read_buf Jiri Slaby
2020-08-18 8:57 ` [PATCH 15/16] vc_screen: extract vcs_read_buf_header Jiri Slaby
2020-08-25 16:48 ` Peilin Ye
2020-08-25 16:48 ` [Linux-kernel-mentees] " Peilin Ye
2020-08-25 16:59 ` Greg KH
2020-08-25 16:59 ` [Linux-kernel-mentees] " Greg KH
2020-08-25 17:12 ` Peilin Ye
2020-08-25 17:12 ` [Linux-kernel-mentees] " Peilin Ye
2020-08-18 8:57 ` [PATCH 16/16] vc_screen: prune macros Jiri Slaby
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