diff options
Diffstat (limited to 'drivers/firmware/arm_sdei.c')
| -rw-r--r-- | drivers/firmware/arm_sdei.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index 840754dcc6ca..a7e762c352f9 100644 --- a/drivers/firmware/arm_sdei.c +++ b/drivers/firmware/arm_sdei.c @@ -31,7 +31,6 @@ #include <linux/slab.h> #include <linux/smp.h> #include <linux/spinlock.h> -#include <linux/uaccess.h> /* * The call to use to reach the firmware. @@ -1092,26 +1091,13 @@ int sdei_event_handler(struct pt_regs *regs, struct sdei_registered_event *arg) { int err; - mm_segment_t orig_addr_limit; u32 event_num = arg->event_num; - /* - * Save restore 'fs'. - * The architecture's entry code save/restores 'fs' when taking an - * exception from the kernel. This ensures addr_limit isn't inherited - * if you interrupted something that allowed the uaccess routines to - * access kernel memory. - * Do the same here because this doesn't come via the same entry code. - */ - orig_addr_limit = force_uaccess_begin(); - err = arg->callback(event_num, regs, arg->callback_arg); if (err) pr_err_ratelimited("event %u on CPU %u failed with error: %d\n", event_num, smp_processor_id(), err); - force_uaccess_end(orig_addr_limit); - return err; } NOKPROBE_SYMBOL(sdei_event_handler); |