The patch titled ptrace: cleanup arch_ptrace() on cris has been added to the -mm tree. Its filename is ptrace-cleanup-arch_ptrace-on-cris.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: ptrace: cleanup arch_ptrace() on cris From: Namhyung Kim <namhyung@xxxxxxxxx> Use new 'regno' variable in order to remove redandunt expression and remove checking @addr less than 0 because @addr is now unsigned. Also update 'datap' on PTRACE_GET/SETREGS to fix a bug on arch-v10. Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx> Acked-by: Mikael Starvik <starvik@xxxxxxxx> Cc: Jesper Nilsson <jesper.nilsson@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/cris/arch-v10/kernel/ptrace.c | 17 ++++++++--------- arch/cris/arch-v32/kernel/ptrace.c | 13 ++++++------- 2 files changed, 14 insertions(+), 16 deletions(-) diff -puN arch/cris/arch-v10/kernel/ptrace.c~ptrace-cleanup-arch_ptrace-on-cris arch/cris/arch-v10/kernel/ptrace.c --- a/arch/cris/arch-v10/kernel/ptrace.c~ptrace-cleanup-arch_ptrace-on-cris +++ a/arch/cris/arch-v10/kernel/ptrace.c @@ -80,6 +80,7 @@ long arch_ptrace(struct task_struct *chi unsigned long addr, unsigned long data) { int ret; + unsigned int regno = addr >> 2; unsigned long __user *datap = (unsigned long __user *)data; switch (request) { @@ -94,10 +95,10 @@ long arch_ptrace(struct task_struct *chi unsigned long tmp; ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - tmp = get_reg(child, addr >> 2); + tmp = get_reg(child, regno); ret = put_user(tmp, datap); break; } @@ -111,19 +112,17 @@ long arch_ptrace(struct task_struct *chi /* Write the word at location address in the USER area. */ case PTRACE_POKEUSR: ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - addr >>= 2; - - if (addr == PT_DCCR) { + if (regno == PT_DCCR) { /* don't allow the tracing process to change stuff like * interrupt enable, kernel/user bit, dma enables etc. */ data &= DCCR_MASK; data |= get_reg(child, PT_DCCR) & ~DCCR_MASK; } - if (put_reg(child, addr, data)) + if (put_reg(child, regno, data)) break; ret = 0; break; @@ -142,7 +141,7 @@ long arch_ptrace(struct task_struct *chi break; } - data += sizeof(unsigned long); + datap++; } break; @@ -166,7 +165,7 @@ long arch_ptrace(struct task_struct *chi } put_reg(child, i, tmp); - data += sizeof(unsigned long); + datap++; } break; diff -puN arch/cris/arch-v32/kernel/ptrace.c~ptrace-cleanup-arch_ptrace-on-cris arch/cris/arch-v32/kernel/ptrace.c --- a/arch/cris/arch-v32/kernel/ptrace.c~ptrace-cleanup-arch_ptrace-on-cris +++ a/arch/cris/arch-v32/kernel/ptrace.c @@ -130,6 +130,7 @@ long arch_ptrace(struct task_struct *chi unsigned long addr, unsigned long data) { int ret; + unsigned int regno = addr >> 2; unsigned long __user *datap = (unsigned long __user *)data; switch (request) { @@ -164,10 +165,10 @@ long arch_ptrace(struct task_struct *chi unsigned long tmp; ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - tmp = get_reg(child, addr >> 2); + tmp = get_reg(child, regno); ret = put_user(tmp, datap); break; } @@ -181,19 +182,17 @@ long arch_ptrace(struct task_struct *chi /* Write the word at location address in the USER area. */ case PTRACE_POKEUSR: ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - addr >>= 2; - - if (addr == PT_CCS) { + if (regno == PT_CCS) { /* don't allow the tracing process to change stuff like * interrupt enable, kernel/user bit, dma enables etc. */ data &= CCS_MASK; data |= get_reg(child, PT_CCS) & ~CCS_MASK; } - if (put_reg(child, addr, data)) + if (put_reg(child, regno, data)) break; ret = 0; break; _ Patches currently in -mm which might be from namhyung@xxxxxxxxx are origin.patch linux-next.patch vfs-remove-a-warning-on-open_fmode.patch vfs-add-__fmode_exec.patch mm-cleanup-gfp_zone-fix-sparse-warnings.patch init-mark-__user-address-space-on-string-literals.patch kernel-userc-add-lock-release-annotation-on-free_user.patch printk-fixup-declaration-of-kmsg_reasons.patch printk-add-lock-context-annotation.patch printk-change-type-of-boot_delay-to-int.patch printk-declare-printk_ratelimit_state-in-ratelimith.patch printk-declare-printk_ratelimit_state-in-ratelimith-fix.patch ptrace-annotate-lock-context-change-on-exit_ptrace.patch signals-annotate-lock_task_sighand.patch signals-annotate-lock-context-change-on-ptrace_stop.patch exit-add-lock-context-annotation-on-find_new_reaper.patch ptrace-change-signature-of-sys_ptrace-and-friends.patch ptrace-cleanup-ptrace_request.patch ptrace-change-signature-of-arch_ptrace.patch ptrace-cleanup-arch_ptrace-on-x86.patch ptrace-cleanup-arch_ptrace-on-arm.patch ptrace-cleanup-arch_ptrace-on-avr32.patch ptrace-cleanup-arch_ptrace-and-friends-on-blackfin.patch ptrace-cleanup-arch_ptrace-on-cris.patch ptrace-cleanup-arch_ptrace-on-frv.patch ptrace-cleanup-arch_ptrace-on-h8300.patch ptrace-cleanup-arch_ptrace-on-m32r.patch ptrace-cleanup-arch_ptrace-on-m68k.patch ptrace-cleanup-arch_ptrace-on-microblaze.patch ptrace-cleanup-arch_ptrace-on-mips.patch ptrace-cleanup-arch_ptrace-on-mn10300.patch ptrace-cleanup-arch_ptrace-on-parisc.patch ptrace-cleanup-arch_ptrace-on-powerpc.patch ptrace-cleanup-arch_ptrace-on-score.patch ptrace-cleanup-arch_ptrace-on-sh.patch ptrace-cleanup-arch_ptrace-on-sparc.patch ptrace-cleanup-arch_ptrace-on-tile.patch ptrace-cleanup-arch_ptrace-on-um.patch ptrace-cleanup-arch_ptrace-on-xtensa.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html