diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/parisc/include/asm/futex.h | 6 | ||||
| -rw-r--r-- | arch/parisc/include/asm/uaccess.h | 13 | ||||
| -rw-r--r-- | arch/parisc/include/uapi/asm/shmbuf.h | 2 | ||||
| -rw-r--r-- | arch/parisc/include/uapi/asm/signal.h | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal.c | 4 |
6 files changed, 9 insertions, 19 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 864b4756dcdf..00cb889bd9a6 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 config PARISC def_bool y + select ALTERNATE_USER_ADDRESS_SPACE select ARCH_32BIT_OFF_T if !64BIT select ARCH_MIGHT_HAVE_PC_PARPORT select HAVE_FUNCTION_TRACER diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h index b5835325d44b..3222206cb3ea 100644 --- a/arch/parisc/include/asm/futex.h +++ b/arch/parisc/include/asm/futex.h @@ -96,12 +96,6 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 val; unsigned long flags; - /* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is - * our gateway page, and causes no end of trouble... - */ - if (uaccess_kernel() && !uaddr) - return -EFAULT; - if (!access_ok(uaddr, sizeof(u32))) return -EFAULT; diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index b3eb4541e441..2bf660eabe42 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -11,15 +11,9 @@ #include <linux/bug.h> #include <linux/string.h> -/* - * Note that since kernel addresses are in a separate address space on - * parisc, we don't need to do anything for access_ok(). - * We just let the page fault handler do the right thing. This also means - * that put_user is the same as __put_user, etc. - */ - -#define access_ok(uaddr, size) \ - ( (uaddr) == (uaddr) ) +#define TASK_SIZE_MAX DEFAULT_TASK_SIZE +#include <asm/pgtable.h> +#include <asm-generic/access_ok.h> #define put_user __put_user #define get_user __get_user @@ -95,7 +89,6 @@ struct exception_table_entry { (val) = (__force __typeof__(*(ptr))) __gu_val; \ } -#define HAVE_GET_KERNEL_NOFAULT #define __get_kernel_nofault(dst, src, type, err_label) \ { \ type __z; \ diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h index 5da3089be65e..532da742fb56 100644 --- a/arch/parisc/include/uapi/asm/shmbuf.h +++ b/arch/parisc/include/uapi/asm/shmbuf.h @@ -3,6 +3,8 @@ #define _PARISC_SHMBUF_H #include <asm/bitsperlong.h> +#include <asm/ipcbuf.h> +#include <asm/posix_types.h> /* * The shmid64_ds structure for parisc architecture. diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h index e5a2657477ac..8e4895c5ea5d 100644 --- a/arch/parisc/include/uapi/asm/signal.h +++ b/arch/parisc/include/uapi/asm/signal.h @@ -67,7 +67,7 @@ struct siginfo; typedef struct sigaltstack { void __user *ss_sp; int ss_flags; - size_t ss_size; + __kernel_size_t ss_size; } stack_t; #endif /* !__ASSEMBLY */ diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 24443908f905..3dd672e2e301 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -236,7 +236,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs, DBG(1, "%s: frame %p info %p\n", __func__, 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 @@ -497,7 +497,7 @@ 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; /* Call trampoline in vdso to restart the syscall |