9os

commit 398a522e7053b366ea3d5f7b24373c69cb5635b1
parent ac81987c37edbfb64677898b5e9c7b1833d0bad1
Author: Roberto Vargas <roberto.vargas@arm.com>
Date:   Thu,  7 Feb 2019 01:29:54 +0000

[dev] Remove support for chdir()

It doesn't make sense to implement chdir in the
driver model and implementing .. can require a lot
of memory.

Change-Id: Ib1b1fd4936255ea19bad04987a62c85347596c73

Diffstat:
M
drivers/dev.c
 | 
7
+++----
M
drivers/dev.h
 | 
1
-
M
src/ramfw/fs.c
 | 
1
-

3 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/dev.c b/drivers/dev.c
@@ -152,9 +152,8 @@ namec(const char *name, int mode)
 		c = devtab[type]->attach(NULL);
 		break;
 	default:
-		c = clone(&dinfo->dot, NULL);
-		s = name;
-		break;
+		errno = ENOENT;
+		return NULL;
 	}
 
 	if (!c)
@@ -384,7 +383,7 @@ idev(void)
 	if ((c = devattach(NULL, '/')) == NULL)
 		panic("idev:attach");
 
-	if (!clone(c, &dinfo->slash) || !clone(c, &dinfo->dot))
+	if (!clone(c, &dinfo->slash))
 		panic("idev:clone");
 
 	chanclose(c);
diff --git a/drivers/dev.h b/drivers/dev.h
@@ -46,7 +46,6 @@ struct attr {
 struct devdata {
 	Chan fds[NR_CHANS];
 	Chan slash;
-	Chan dot;
 	Uart *uarts[NR_UARTS];
 };
 
diff --git a/src/ramfw/fs.c b/src/ramfw/fs.c
@@ -6,5 +6,4 @@ int close(int fd){return 0;}
 int read(int fd, void *buf, int n){return 0;}
 int write(int fd, void *buf, int n){return 0;}
 int seek(int fd, long long off, int whence){return 0;}
-int chdir(const char *path){return 0;}
 int bind(char *path, char *where, int flags){return 0;}