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authorArnd Bergmann <arnd@arndb.de>2022-02-11 21:42:45 +0100
committerArnd Bergmann <arnd@arndb.de>2022-02-25 09:36:06 +0100
commit967747bbc084b93b54e66f9047d342232314cd25 (patch)
tree816678a5afa21612d3d420c2cd6fc61abc64cda1 /arch/parisc/kernel/signal.c
parente5ef21d139957b8d064fefb7db42d1525605dd98 (diff)
uaccess: remove CONFIG_SET_FS
There are no remaining callers of set_fs(), so CONFIG_SET_FS can be removed globally, along with the thread_info field and any references to it. This turns access_ok() into a cheaper check against TASK_SIZE_MAX. As CONFIG_SET_FS is now gone, drop all remaining references to set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel(). Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic] Acked-by: Dinh Nguyen <dinguyen@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/parisc/kernel/signal.c')
-rw-r--r--arch/parisc/kernel/signal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 46b1050640b8..cc07bcabf336 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -251,7 +251,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs,
DBG(1,"setup_rt_frame: frame %p info %p\n", frame, ksig->info);
start = (unsigned long) frame;
- if (start >= user_addr_max() - sigframe_size)
+ if (start >= TASK_SIZE_MAX - sigframe_size)
return -EFAULT;
#ifdef CONFIG_64BIT
@@ -518,7 +518,7 @@ insert_restart_trampoline(struct pt_regs *regs)
long err = 0;
/* check that we don't exceed the stack */
- if (A(&usp[0]) >= user_addr_max() - 5 * sizeof(int))
+ if (A(&usp[0]) >= TASK_SIZE_MAX - 5 * sizeof(int))
return;
/* Setup a trampoline to restart the syscall