From 967747bbc084b93b54e66f9047d342232314cd25 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 11 Feb 2022 21:42:45 +0100 Subject: 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 # for sparc32 changes Acked-by: "Eric W. Biederman" Tested-by: Sergey Matyukevich # for arc changes Acked-by: Stafford Horne # [openrisc, asm-generic] Acked-by: Dinh Nguyen Signed-off-by: Arnd Bergmann --- drivers/scsi/sg.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/scsi/sg.c') diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 6b43e97bd417..aaa2376b9d34 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -224,11 +224,6 @@ static int sg_check_file_access(struct file *filp, const char *caller) caller, task_tgid_vnr(current), current->comm); return -EPERM; } - if (uaccess_kernel()) { - pr_err_once("%s: process %d (%s) called from kernel context, this is not allowed.\n", - caller, task_tgid_vnr(current), current->comm); - return -EACCES; - } return 0; } -- cgit v1.2.3