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compat: Cleanup in_compat_syscall() callers

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Now that in_compat_syscall() is consistent on all architectures and does
not longer report true on native i686, the workarounds (ifdeffery and
helpers) can be removed.

Signed-off-by: Dmitry Safonov <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Dmitry Safonov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Andy Lutomirsky <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: John Stultz <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Steffen Klassert <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
This commit is contained in:
Dmitry Safonov authored and Thomas Gleixner committed 2018-11-01 13:02:21 +01:00
1 parent a846446b19
commit 98f76206b3
4 files changed
+5 -17
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drivers/firmware/efi/efivars.c
+4 -12
View File
@@ -229,14 +229,6 @@ sanity_check(struct efi_variable *var, efi_char16_t *name, efi_guid_t vendor,
return 0;
}
static inline bool is_compat(void)
{
if (IS_ENABLED(CONFIG_COMPAT) && in_compat_syscall())
return true;
return false;
}
static void
copy_out_compat(struct efi_variable *dst, struct compat_efi_variable *src)
{
@@ -263,7 +255,7 @@ efivar_store_raw(struct efivar_entry *entry, const char *buf, size_t count)
u8 *data;
int err;
if (is_compat()) {
if (in_compat_syscall()) {
struct compat_efi_variable *compat;
if (count != sizeof(*compat))
@@ -324,7 +316,7 @@ efivar_show_raw(struct efivar_entry *entry, char *buf)
&entry->var.DataSize, entry->var.Data))
return -EIO;
if (is_compat()) {
if (in_compat_syscall()) {
compat = (struct compat_efi_variable *)buf;
size = sizeof(*compat);
@@ -418,7 +410,7 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj,
struct compat_efi_variable *compat = (struct compat_efi_variable *)buf;
struct efi_variable *new_var = (struct efi_variable *)buf;
struct efivar_entry *new_entry;
bool need_compat = is_compat();
bool need_compat = in_compat_syscall();
efi_char16_t *name;
unsigned long size;
u32 attributes;
@@ -495,7 +487,7 @@ static ssize_t efivar_delete(struct file *filp, struct kobject *kobj,
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (is_compat()) {
if (in_compat_syscall()) {
if (count != sizeof(*compat))
return -EINVAL;
kernel/time/time.c
+1 -1
View File
@@ -842,7 +842,7 @@ int get_timespec64(struct timespec64 *ts,
ts->tv_sec = kts.tv_sec;
/* Zero out the padding for 32 bit systems or in compat mode */
if (IS_ENABLED(CONFIG_64BIT_TIME) && (!IS_ENABLED(CONFIG_64BIT) || in_compat_syscall()))
if (IS_ENABLED(CONFIG_64BIT_TIME) && in_compat_syscall())
kts.tv_nsec &= 0xFFFFFFFFUL;
ts->tv_nsec = kts.tv_nsec;
net/xfrm/xfrm_state.c
-2
View File
@@ -2077,10 +2077,8 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
struct xfrm_mgr *km;
struct xfrm_policy *pol = NULL;
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
return -EOPNOTSUPP;
#endif
if (!optval && !optlen) {
xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL);
net/xfrm/xfrm_user.c
-2
View File
@@ -2621,10 +2621,8 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
const struct xfrm_link *link;
int type, err;
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
return -EOPNOTSUPP;
#endif
type = nlh->nlmsg_type;
if (type > XFRM_MSG_MAX)