[PATCH -tip v4 15/27] ARC: kprobes: Don't call the ->break_handler() in ARC kprobes code

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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@kernel.org>
Cc: x86@kernel.org, Masami Hiramatsu <mhiramat@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org,
	Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Laura Abbott <labbott@redhat.com>, Josef Bacik <jbacik@fb.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	James Hogan <jhogan@kernel.org>
Subject: [PATCH -tip v4 15/27] ARC: kprobes: Don't call the ->break_handler() in ARC kprobes code
Date: Mon, 28 May 2018 16:06:58 +0900	[thread overview]
Message-ID: <152749121806.15132.2649298571566781993.stgit@devbox> (raw)
In-Reply-To: <152749074878.15132.16693721906742461289.stgit@devbox>

Don't call the ->break_handler() from the ARC kprobes code,
because it was only used by jprobes which got removed.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 arch/arc/kernel/kprobes.c |    7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/arc/kernel/kprobes.c b/arch/arc/kernel/kprobes.c
index 7811a6bbe8f0..465365696c91 100644
--- a/arch/arc/kernel/kprobes.c
+++ b/arch/arc/kernel/kprobes.c
@@ -234,13 +234,6 @@ int __kprobes arc_kprobe_handler(unsigned long addr, struct pt_regs *regs)
 		}
 
 		return 1;
-	} else if (kprobe_running()) {
-		p = __this_cpu_read(current_kprobe);
-		if (p->break_handler && p->break_handler(p, regs)) {
-			setup_singlestep(p, regs);
-			kcb->kprobe_status = KPROBE_HIT_SS;
-			return 1;
-		}
 	}
 
 	/* no_kprobe: */

WARNING: multiple messages have this Message-ID (diff)

From: Masami Hiramatsu <mhiramat@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@kernel.org>
Cc: x86@kernel.org, Masami Hiramatsu <mhiramat@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org,
	Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Laura Abbott <labbott@redhat.com>, Josef Bacik <jbacik@fb.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	James Hogan <jhogan@kernel.org>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S . Miller" <davem@davemloft.net>,
	linux-arch@vger.kernel.org
Subject: [PATCH -tip v4 15/27] ARC: kprobes: Don't call the ->break_handler() in ARC kprobes code
Date: Mon, 28 May 2018 16:06:58 +0900	[thread overview]
Message-ID: <152749121806.15132.2649298571566781993.stgit@devbox> (raw)
Message-ID: <20180528070658.4xa6XptgWPhrCXsh-b9-Q0WNKNEFD0CagN5yLuMh8Ns@z> (raw)
In-Reply-To: <152749074878.15132.16693721906742461289.stgit@devbox>

Don't call the ->break_handler() from the ARC kprobes code,
because it was only used by jprobes which got removed.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 arch/arc/kernel/kprobes.c |    7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/arc/kernel/kprobes.c b/arch/arc/kernel/kprobes.c
index 7811a6bbe8f0..465365696c91 100644
--- a/arch/arc/kernel/kprobes.c
+++ b/arch/arc/kernel/kprobes.c
@@ -234,13 +234,6 @@ int __kprobes arc_kprobe_handler(unsigned long addr, struct pt_regs *regs)
 		}
 
 		return 1;
-	} else if (kprobe_running()) {
-		p = __this_cpu_read(current_kprobe);
-		if (p->break_handler && p->break_handler(p, regs)) {
-			setup_singlestep(p, regs);
-			kcb->kprobe_status = KPROBE_HIT_SS;
-			return 1;
-		}
 	}
 
 	/* no_kprobe: */

next prev parent reply	other threads:[~2018-05-28  7:06 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-28  6:59 [PATCH -tip v4 00/27] kprobes: Cleanup jprobe implementation Masami Hiramatsu
2018-05-28  6:59 ` Masami Hiramatsu
2018-05-28  6:59 ` [PATCH -tip v4 01/27] Documentation/kprobes: Fix to remove remaining jprobe Masami Hiramatsu
2018-05-28  6:59   ` Masami Hiramatsu
2018-05-28  7:00 ` [PATCH -tip v4 02/27] kprobes: Remove jprobe API implementation Masami Hiramatsu
2018-05-28  7:00   ` Masami Hiramatsu
2018-05-28  7:00 ` [PATCH -tip v4 03/27] kprobes/x86: Remove jprobe implementation Masami Hiramatsu
2018-05-28  7:00   ` Masami Hiramatsu
2018-05-28  7:01 ` [PATCH -tip v4 04/27] ARC: kprobes: " Masami Hiramatsu
2018-05-28  7:01   ` Masami Hiramatsu
2018-05-28  7:01 ` [PATCH -tip v4 05/27] ARM: kprobes: Remove jprobe arm implementation Masami Hiramatsu
2018-05-28  7:01   ` Masami Hiramatsu
2018-05-28  7:02 ` [PATCH -tip v4 06/27] arm64: kprobes: Remove jprobe implementation Masami Hiramatsu
2018-05-28  7:02   ` Masami Hiramatsu
2018-05-28  7:02 ` [PATCH -tip v4 07/27] powerpc/kprobes: Remove jprobe powerpc implementation Masami Hiramatsu
2018-05-28  7:02   ` Masami Hiramatsu
2018-05-28  7:03 ` [PATCH -tip v4 08/27] ia64: kprobes: Remove jprobe implementation Masami Hiramatsu
2018-05-28  7:03   ` Masami Hiramatsu
2018-05-28  7:03 ` [PATCH -tip v4 09/27] MIPS: " Masami Hiramatsu
2018-05-28  7:03   ` Masami Hiramatsu
2018-05-28  7:04 ` [PATCH -tip v4 10/27] s390/kprobes: " Masami Hiramatsu
2018-05-28  7:04   ` Masami Hiramatsu
2018-05-28  7:04 ` [PATCH -tip v4 11/27] sh: kprobes: " Masami Hiramatsu
2018-05-28  7:04   ` Masami Hiramatsu
2018-05-28  7:05 ` [PATCH -tip v4 12/27] sparc64: " Masami Hiramatsu
2018-05-28  7:05   ` Masami Hiramatsu
2018-05-28  7:05 ` [PATCH -tip v4 13/27] kprobes: Don't check the ->break_handler() in generic kprobes code Masami Hiramatsu
2018-05-28  7:05   ` Masami Hiramatsu
2018-05-28  7:06 ` [PATCH -tip v4 14/27] kprobes/x86: Don't call ->break_handler() in x86 kprobes Masami Hiramatsu
2018-05-28  7:06   ` Masami Hiramatsu
2018-05-28  7:06 ` Masami Hiramatsu [this message]
2018-05-28  7:06   ` [PATCH -tip v4 15/27] ARC: kprobes: Don't call the ->break_handler() in ARC kprobes code Masami Hiramatsu
2018-05-28  7:07 ` [PATCH -tip v4 16/27] ARM: kprobes: Don't call the ->break_handler() in arm " Masami Hiramatsu
2018-05-28  7:07   ` Masami Hiramatsu
2018-05-28  7:08 ` [PATCH -tip v4 17/27] arm64: " Masami Hiramatsu
2018-05-28  7:08   ` Masami Hiramatsu
2018-05-28  7:08 ` [PATCH -tip v4 18/27] powerpc/kprobes: " Masami Hiramatsu
2018-05-28  7:08   ` Masami Hiramatsu
2018-05-28  7:09 ` [PATCH -tip v4 19/27] ia64: kprobes: Don't call the ->break_handler() in ia64 " Masami Hiramatsu
2018-05-28  7:09   ` Masami Hiramatsu
2018-05-28  7:09 ` [PATCH -tip v4 20/27] MIPS: kprobes: Don't call the ->break_handler() in MIPS " Masami Hiramatsu
2018-05-28  7:09   ` Masami Hiramatsu
2018-05-28  7:10 ` [PATCH -tip v4 21/27] s390/kprobes: Don't call the ->break_handler() in s390 " Masami Hiramatsu
2018-05-28  7:10   ` Masami Hiramatsu
2018-05-28  7:10 ` [PATCH -tip v4 22/27] sh: kprobes: Don't call the ->break_handler() in SH " Masami Hiramatsu
2018-05-28  7:10   ` Masami Hiramatsu
2018-05-28  7:11 ` [PATCH -tip v4 23/27] sparc64: kprobes: Don't call the ->break_handler() in sparc64 " Masami Hiramatsu
2018-05-28  7:11   ` Masami Hiramatsu
2018-05-28  7:11 ` [PATCH -tip v4 24/27] bpf: error-inject: kprobes: Clear current_kprobe and enable preempt in kprobe Masami Hiramatsu
2018-05-28  7:11   ` Masami Hiramatsu
2018-05-28  7:12 ` [PATCH -tip v4 25/27] x86: kprobes: Do not disable preempt on int3 path Masami Hiramatsu
2018-05-28  7:12   ` Masami Hiramatsu
2018-05-28  7:12 ` [PATCH -tip v4 26/27] Documentation: kprobes: Add how to change the execution path Masami Hiramatsu
2018-05-28  7:12   ` Masami Hiramatsu
2018-05-28  7:13 ` [PATCH -tip v4 27/27] kprobes: Remove jprobe stub API Masami Hiramatsu
2018-05-28  7:13   ` Masami Hiramatsu
2018-05-30  9:01 ` [PATCH -tip v4 00/27] kprobes: Cleanup jprobe implementation Masami Hiramatsu
2018-05-30  9:01   ` Masami Hiramatsu
2018-05-31 10:43   ` Naveen N. Rao
2018-05-31 10:43     ` Naveen N. Rao

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:7811a6bbe8f dfblob:465365696c9 dfblob:7811a6bbe8f
dfblob:465365696c9 )
 OR (
bs:"[PATCH -tip v4 15/27] ARC: kprobes: Don't call the ->break_handler() in ARC kprobes code" )
	(help)

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