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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
commit93f30c73ecd0281cf3685ef0e4e384980a176176 (patch)
treebd272334a0dbd258c08b5b2237e8bf5e17ce7255 /arch/parisc
parent06ede5f6086757f746b7be860ae76137f4e95032 (diff)
parent96271654f55c74ff7325fbdfc535466c9deb0ce6 (diff)
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat and uaccess updates from Al Viro: - {get,put}_compat_sigset() series - assorted compat ioctl stuff - more set_fs() elimination - a few more timespec64 conversions - several removals of pointless access_ok() in places where it was followed only by non-__ variants of primitives * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits) coredump: call do_unlinkat directly instead of sys_unlink fs: expose do_unlinkat for built-in callers ext4: take handling of EXT4_IOC_GROUP_ADD into a helper, get rid of set_fs() ipmi: get rid of pointless access_ok() pi433: sanitize ioctl cxlflash: get rid of pointless access_ok() mtdchar: get rid of pointless access_ok() r128: switch compat ioctls to drm_ioctl_kernel() selection: get rid of field-by-field copyin VT_RESIZEX: get rid of field-by-field copyin i2c compat ioctls: move to ->compat_ioctl() sched_rr_get_interval(): move compat to native, get rid of set_fs() mips: switch to {get,put}_compat_sigset() sparc: switch to {get,put}_compat_sigset() s390: switch to {get,put}_compat_sigset() ppc: switch to {get,put}_compat_sigset() parisc: switch to {get,put}_compat_sigset() get_compat_sigset() get rid of {get,put}_compat_itimerspec() io_getevents: Use timespec64 to represent timeouts ...
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/kernel/signal.c9
-rw-r--r--arch/parisc/kernel/signal32.c13
-rw-r--r--arch/parisc/kernel/signal32.h2
3 files changed, 3 insertions, 21 deletions
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index f2a4038e275b..342073f44d3f 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -93,7 +93,6 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
unsigned long usp = (regs->gr[30] & ~(0x01UL));
unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
#ifdef CONFIG_64BIT
- compat_sigset_t compat_set;
struct compat_rt_sigframe __user * compat_frame;
if (is_compat_task())
@@ -114,9 +113,8 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
if (is_compat_task()) {
DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
- if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
+ if (get_compat_sigset(&set, &compat_frame->uc.uc_sigmask))
goto give_sigsegv;
- sigset_32to64(&set,&compat_set);
} else
#endif
{
@@ -238,7 +236,6 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs,
int err = 0;
#ifdef CONFIG_64BIT
struct compat_rt_sigframe __user * compat_frame;
- compat_sigset_t compat_set;
#endif
usp = (regs->gr[30] & ~(0x01UL));
@@ -261,8 +258,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs,
DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
err |= setup_sigcontext32(&compat_frame->uc.uc_mcontext,
&compat_frame->regs, regs, in_syscall);
- sigset_64to32(&compat_set,set);
- err |= __copy_to_user(&compat_frame->uc.uc_sigmask, &compat_set, sizeof(compat_set));
+ err |= put_compat_sigset(&compat_frame->uc.uc_sigmask, set,
+ sizeof(compat_sigset_t));
} else
#endif
{
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 9e0cb6a577d6..41afa9cd1f55 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -46,19 +46,6 @@
#define DBG(LEVEL, ...)
#endif
-inline void
-sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
-{
- s64->sig[0] = s32->sig[0] | ((unsigned long)s32->sig[1] << 32);
-}
-
-inline void
-sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
-{
- s32->sig[0] = s64->sig[0] & 0xffffffffUL;
- s32->sig[1] = (s64->sig[0] >> 32) & 0xffffffffUL;
-}
-
long
restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs)
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index af51d4ccee42..719e7417732c 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -79,8 +79,6 @@ struct compat_rt_sigframe {
#define FUNCTIONCALLFRAME32 48
#define PARISC_RT_SIGFRAME_SIZE32 (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
-void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
long restore_sigcontext32(struct compat_sigcontext __user *sc,
struct compat_regfile __user *rf,
struct pt_regs *regs);