[RFC][PATCH 5/9] -Wshadow: variables named 'up' clash with up()
From: Jesper Juhl
Date: Mon Jul 10 2006 - 07:14:11 EST
(please see the mail titled
"[RFC][PATCH 0/9] -Wshadow: Making the kernel build clean with -Wshadow"
for an explanation of why I'm doing this)
Fix -Wshadow warnings related to variables of the name 'up' clashing with
the global function name up().
(this patch fixes only those occurences that show up for allnoconfig)
Signed-off-by: Jesper Juhl <jesper.juhl@xxxxxxxxx>
---
drivers/char/vt_ioctl.c | 60 +++++++++++++++++++-------------------
fs/select.c | 6 +--
kernel/user.c | 42 +++++++++++++-------------
3 files changed, 54 insertions(+), 54 deletions(-)
--- linux-2.6.18-rc1-orig/kernel/user.c 2006-07-06 19:39:58.000000000 +0200
+++ linux-2.6.18-rc1/kernel/user.c 2006-07-09 20:34:50.000000000 +0200
@@ -56,24 +56,24 @@ struct user_struct root_user = {
/*
* These routines must be called with the uidhash spinlock held!
*/
-static inline void uid_hash_insert(struct user_struct *up, struct list_head *hashent)
+static inline void uid_hash_insert(struct user_struct *_up, struct list_head *hashent)
{
- list_add(&up->uidhash_list, hashent);
+ list_add(&_up->uidhash_list, hashent);
}
-static inline void uid_hash_remove(struct user_struct *up)
+static inline void uid_hash_remove(struct user_struct *_up)
{
- list_del(&up->uidhash_list);
+ list_del(&_up->uidhash_list);
}
static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent)
{
- struct list_head *up;
+ struct list_head *_up;
- list_for_each(up, hashent) {
+ list_for_each(_up, hashent) {
struct user_struct *user;
- user = list_entry(up, struct user_struct, uidhash_list);
+ user = list_entry(_up, struct user_struct, uidhash_list);
if(user->uid == uid) {
atomic_inc(&user->__count);
@@ -101,20 +101,20 @@ struct user_struct *find_user(uid_t uid)
return ret;
}
-void free_uid(struct user_struct *up)
+void free_uid(struct user_struct *_up)
{
unsigned long flags;
- if (!up)
+ if (!_up)
return;
local_irq_save(flags);
- if (atomic_dec_and_lock(&up->__count, &uidhash_lock)) {
- uid_hash_remove(up);
+ if (atomic_dec_and_lock(&_up->__count, &uidhash_lock)) {
+ uid_hash_remove(_up);
spin_unlock_irqrestore(&uidhash_lock, flags);
- key_put(up->uid_keyring);
- key_put(up->session_keyring);
- kmem_cache_free(uid_cachep, up);
+ key_put(_up->uid_keyring);
+ key_put(_up->session_keyring);
+ kmem_cache_free(uid_cachep, _up);
} else {
local_irq_restore(flags);
}
@@ -123,13 +123,13 @@ void free_uid(struct user_struct *up)
struct user_struct * alloc_uid(uid_t uid)
{
struct list_head *hashent = uidhashentry(uid);
- struct user_struct *up;
+ struct user_struct *_up;
spin_lock_irq(&uidhash_lock);
- up = uid_hash_find(uid, hashent);
+ _up = uid_hash_find(uid, hashent);
spin_unlock_irq(&uidhash_lock);
- if (!up) {
+ if (!_up) {
struct user_struct *new;
new = kmem_cache_alloc(uid_cachep, SLAB_KERNEL);
@@ -158,19 +158,19 @@ struct user_struct * alloc_uid(uid_t uid
* on adding the same user already..
*/
spin_lock_irq(&uidhash_lock);
- up = uid_hash_find(uid, hashent);
- if (up) {
+ _up = uid_hash_find(uid, hashent);
+ if (_up) {
key_put(new->uid_keyring);
key_put(new->session_keyring);
kmem_cache_free(uid_cachep, new);
} else {
uid_hash_insert(new, hashent);
- up = new;
+ _up = new;
}
spin_unlock_irq(&uidhash_lock);
}
- return up;
+ return _up;
}
void switch_uid(struct user_struct *new_user)
--- linux-2.6.18-rc1-orig/fs/select.c 2006-07-06 19:39:47.000000000 +0200
+++ linux-2.6.18-rc1/fs/select.c 2006-07-09 20:35:42.000000000 +0200
@@ -524,17 +524,17 @@ asmlinkage long sys_pselect6(int n, fd_s
fd_set __user *exp, struct timespec __user *tsp, void __user *sig)
{
size_t sigsetsize = 0;
- sigset_t __user *up = NULL;
+ sigset_t __user *_up = NULL;
if (sig) {
if (!access_ok(VERIFY_READ, sig, sizeof(void *)+sizeof(size_t))
- || __get_user(up, (sigset_t __user * __user *)sig)
+ || __get_user(_up, (sigset_t __user * __user *)sig)
|| __get_user(sigsetsize,
(size_t __user *)(sig+sizeof(void *))))
return -EFAULT;
}
- return sys_pselect7(n, inp, outp, exp, tsp, up, sigsetsize);
+ return sys_pselect7(n, inp, outp, exp, tsp, _up, sigsetsize);
}
#endif /* TIF_RESTORE_SIGMASK */
--- linux-2.6.18-rc1-orig/drivers/char/vt_ioctl.c 2006-07-06 19:39:35.000000000 +0200
+++ linux-2.6.18-rc1/drivers/char/vt_ioctl.c 2006-07-09 20:38:02.000000000 +0200
@@ -187,7 +187,7 @@ do_kdgkb_ioctl(int cmd, struct kbsentry
struct kbsentry *kbs;
char *p;
u_char *q;
- u_char __user *up;
+ u_char __user *_up;
int sz;
int delta;
char *first_free, *fj, *fnw;
@@ -215,15 +215,15 @@ do_kdgkb_ioctl(int cmd, struct kbsentry
case KDGKBSENT:
sz = sizeof(kbs->kb_string) - 1; /* sz should have been
a struct member */
- up = user_kdgkb->kb_string;
+ _up = user_kdgkb->kb_string;
p = func_table[i];
if(p)
for ( ; *p && sz; p++, sz--)
- if (put_user(*p, up++)) {
+ if (put_user(*p, _up++)) {
ret = -EFAULT;
goto reterr;
}
- if (put_user('\0', up)) {
+ if (put_user('\0', _up)) {
ret = -EFAULT;
goto reterr;
}
@@ -370,7 +370,7 @@ int vt_ioctl(struct tty_struct *tty, str
struct kbd_struct * kbd;
unsigned int console;
unsigned char ucval;
- void __user *up = (void __user *)arg;
+ void __user *_up = (void __user *)arg;
int i, perm;
console = vc->vc_num;
@@ -454,12 +454,12 @@ int vt_ioctl(struct tty_struct *tty, str
if (!capable(CAP_SYS_TTY_CONFIG))
return -EPERM;
- if (copy_from_user(&kbrep, up, sizeof(struct kbd_repeat)))
+ if (copy_from_user(&kbrep, _up, sizeof(struct kbd_repeat)))
return -EFAULT;
err = kbd_rate(&kbrep);
if (err)
return err;
- if (copy_to_user(up, &kbrep, sizeof(struct kbd_repeat)))
+ if (copy_to_user(_up, &kbrep, sizeof(struct kbd_repeat)))
return -EFAULT;
return 0;
}
@@ -569,19 +569,19 @@ int vt_ioctl(struct tty_struct *tty, str
case KDSETKEYCODE:
if(!capable(CAP_SYS_TTY_CONFIG))
perm=0;
- return do_kbkeycode_ioctl(cmd, up, perm);
+ return do_kbkeycode_ioctl(cmd, _up, perm);
case KDGKBENT:
case KDSKBENT:
- return do_kdsk_ioctl(cmd, up, perm, kbd);
+ return do_kdsk_ioctl(cmd, _up, perm, kbd);
case KDGKBSENT:
case KDSKBSENT:
- return do_kdgkb_ioctl(cmd, up, perm);
+ return do_kdgkb_ioctl(cmd, _up, perm);
case KDGKBDIACR:
{
- struct kbdiacrs __user *a = up;
+ struct kbdiacrs __user *a = _up;
if (put_user(accent_table_size, &a->kb_cnt))
return -EFAULT;
@@ -592,7 +592,7 @@ int vt_ioctl(struct tty_struct *tty, str
case KDSKBDIACR:
{
- struct kbdiacrs __user *a = up;
+ struct kbdiacrs __user *a = _up;
unsigned int ct;
if (!perm)
@@ -661,7 +661,7 @@ int vt_ioctl(struct tty_struct *tty, str
if (!perm)
return -EPERM;
- if (copy_from_user(&tmp, up, sizeof(struct vt_mode)))
+ if (copy_from_user(&tmp, _up, sizeof(struct vt_mode)))
return -EFAULT;
if (tmp.mode != VT_AUTO && tmp.mode != VT_PROCESS)
return -EINVAL;
@@ -685,7 +685,7 @@ int vt_ioctl(struct tty_struct *tty, str
memcpy(&tmp, &vc->vt_mode, sizeof(struct vt_mode));
release_console_sem();
- rc = copy_to_user(up, &tmp, sizeof(struct vt_mode));
+ rc = copy_to_user(_up, &tmp, sizeof(struct vt_mode));
return rc ? -EFAULT : 0;
}
@@ -696,7 +696,7 @@ int vt_ioctl(struct tty_struct *tty, str
*/
case VT_GETSTATE:
{
- struct vt_stat __user *vtstat = up;
+ struct vt_stat __user *vtstat = _up;
unsigned short state, mask;
if (put_user(fg_console + 1, &vtstat->v_active))
@@ -840,7 +840,7 @@ int vt_ioctl(struct tty_struct *tty, str
case VT_RESIZE:
{
- struct vt_sizes __user *vtsizes = up;
+ struct vt_sizes __user *vtsizes = _up;
ushort ll,cc;
if (!perm)
return -EPERM;
@@ -857,7 +857,7 @@ int vt_ioctl(struct tty_struct *tty, str
case VT_RESIZEX:
{
- struct vt_consize __user *vtconsize = up;
+ struct vt_consize __user *vtconsize = _up;
ushort ll,cc,vlin,clin,vcol,ccol;
if (!perm)
return -EPERM;
@@ -911,7 +911,7 @@ int vt_ioctl(struct tty_struct *tty, str
op.width = 8;
op.height = 0;
op.charcount = 256;
- op.data = up;
+ op.data = _up;
return con_font_op(vc_cons[fg_console].d, &op);
}
@@ -921,21 +921,21 @@ int vt_ioctl(struct tty_struct *tty, str
op.width = 8;
op.height = 32;
op.charcount = 256;
- op.data = up;
+ op.data = _up;
return con_font_op(vc_cons[fg_console].d, &op);
}
case PIO_CMAP:
if (!perm)
return -EPERM;
- return con_set_cmap(up);
+ return con_set_cmap(_up);
case GIO_CMAP:
- return con_get_cmap(up);
+ return con_get_cmap(_up);
case PIO_FONTX:
case GIO_FONTX:
- return do_fontx_ioctl(cmd, up, perm, &op);
+ return do_fontx_ioctl(cmd, _up, perm, &op);
case PIO_FONTRESET:
{
@@ -960,13 +960,13 @@ int vt_ioctl(struct tty_struct *tty, str
}
case KDFONTOP: {
- if (copy_from_user(&op, up, sizeof(op)))
+ if (copy_from_user(&op, _up, sizeof(op)))
return -EFAULT;
if (!perm && op.op != KD_FONT_OP_GET)
return -EPERM;
i = con_font_op(vc, &op);
if (i) return i;
- if (copy_to_user(up, &op, sizeof(op)))
+ if (copy_to_user(_up, &op, sizeof(op)))
return -EFAULT;
return 0;
}
@@ -974,24 +974,24 @@ int vt_ioctl(struct tty_struct *tty, str
case PIO_SCRNMAP:
if (!perm)
return -EPERM;
- return con_set_trans_old(up);
+ return con_set_trans_old(_up);
case GIO_SCRNMAP:
- return con_get_trans_old(up);
+ return con_get_trans_old(_up);
case PIO_UNISCRNMAP:
if (!perm)
return -EPERM;
- return con_set_trans_new(up);
+ return con_set_trans_new(_up);
case GIO_UNISCRNMAP:
- return con_get_trans_new(up);
+ return con_get_trans_new(_up);
case PIO_UNIMAPCLR:
{ struct unimapinit ui;
if (!perm)
return -EPERM;
- i = copy_from_user(&ui, up, sizeof(struct unimapinit));
+ i = copy_from_user(&ui, _up, sizeof(struct unimapinit));
if (i) return -EFAULT;
con_clear_unimap(vc, &ui);
return 0;
@@ -999,7 +999,7 @@ int vt_ioctl(struct tty_struct *tty, str
case PIO_UNIMAP:
case GIO_UNIMAP:
- return do_unimap_ioctl(cmd, up, perm, vc);
+ return do_unimap_ioctl(cmd, _up, perm, vc);
case VT_LOCKSWITCH:
if (!capable(CAP_SYS_TTY_CONFIG))
-
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