summaryrefslogtreecommitdiff
path: root/arch/hexagon
diff options
context:
space:
mode:
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/hexagon
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/hexagon')
-rw-r--r--arch/hexagon/Kconfig1
-rw-r--r--arch/hexagon/include/asm/thread_info.h6
-rw-r--r--arch/hexagon/kernel/process.c1
3 files changed, 0 insertions, 8 deletions
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 15dd8f38b698..54eadf265178 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -30,7 +30,6 @@ config HEXAGON
select GENERIC_CLOCKEVENTS_BROADCAST
select MODULES_USE_ELF_RELA
select GENERIC_CPU_DEVICES
- select SET_FS
select ARCH_WANT_LD_ORPHAN_WARN
select TRACE_IRQFLAGS_SUPPORT
help
diff --git a/arch/hexagon/include/asm/thread_info.h b/arch/hexagon/include/asm/thread_info.h
index 535976665bf0..e90f280b9ce3 100644
--- a/arch/hexagon/include/asm/thread_info.h
+++ b/arch/hexagon/include/asm/thread_info.h
@@ -22,10 +22,6 @@
#ifndef __ASSEMBLY__
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
/*
* This is union'd with the "bottom" of the kernel stack.
* It keeps track of thread info which is handy for routines
@@ -37,7 +33,6 @@ struct thread_info {
unsigned long flags; /* low level flags */
__u32 cpu; /* current cpu */
int preempt_count; /* 0=>preemptible,<0=>BUG */
- mm_segment_t addr_limit; /* segmentation sux */
/*
* used for syscalls somehow;
* seems to have a function pointer and four arguments
@@ -66,7 +61,6 @@ struct thread_info {
.flags = 0, \
.cpu = 0, \
.preempt_count = 1, \
- .addr_limit = KERNEL_DS, \
.sp = 0, \
.regs = NULL, \
}
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 232dfd8956aa..dfa6b2757c05 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -105,7 +105,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
/*
* Parent sees new pid -- not necessary, not even possible at
* this point in the fork process
- * Might also want to set things like ti->addr_limit
*/
return 0;