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MIPS: vpe: Remove vpe_getcwd

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I couldn't find any user of the dubious vpe_getcwd so far. So remove it and
get rid of another set_fs(KERNEL_DS).

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Thomas Bogendoerfer 2021-01-22 12:44:49 +01:00
parent 5b2d6d2d60
commit 7cf52001ee
2 changed files with 0 additions and 36 deletions
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3
arch/mips/include/asm/vpe.h
View File

@ -26,7 +26,6 @@
#endif
#define MAX_VPES 16
#define VPE_PATH_MAX 256
static inline int aprp_cpu_index(void)
{
@ -62,7 +61,6 @@ struct vpe {
unsigned long len;
char *pbuffer;
unsigned long plen;
char cwd[VPE_PATH_MAX];
unsigned long __start;
@ -111,7 +109,6 @@ extern const struct file_operations vpe_fops;
int vpe_notify(int index, struct vpe_notifications *notify);
void *vpe_get_shared(int index);
char *vpe_getcwd(int index);
struct vpe *get_vpe(int minor);
struct tc *get_tc(int index);

33
arch/mips/kernel/vpe.c
View File

@ -746,28 +746,12 @@ static int vpe_elfload(struct vpe *v)
return 0;
}
static int getcwd(char *buff, int size)
{
mm_segment_t old_fs;
int ret;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_getcwd(buff, size);
set_fs(old_fs);
return ret;
}
/* checks VPE is unused and gets ready to load program */
static int vpe_open(struct inode *inode, struct file *filp)
{
enum vpe_state state;
struct vpe_notifications *notifier;
struct vpe *v;
int ret;
if (VPE_MODULE_MINOR != iminor(inode)) {
/* assume only 1 device at the moment. */
@ -803,12 +787,6 @@ static int vpe_open(struct inode *inode, struct file *filp)
v->plen = P_SIZE;
v->load_addr = NULL;
v->len = 0;
v->cwd[0] = 0;
ret = getcwd(v->cwd, VPE_PATH_MAX);
if (ret < 0)
pr_warn("VPE loader: open, getcwd returned %d\n", ret);
v->shared_ptr = NULL;
v->__start = 0;
@ -915,17 +893,6 @@ int vpe_notify(int index, struct vpe_notifications *notify)
}
EXPORT_SYMBOL(vpe_notify);
char *vpe_getcwd(int index)
{
struct vpe *v = get_vpe(index);
if (v == NULL)
return NULL;
return v->cwd;
}
EXPORT_SYMBOL(vpe_getcwd);
module_init(vpe_module_init);
module_exit(vpe_module_exit);
MODULE_DESCRIPTION("MIPS VPE Loader");