[12/27] um: Remove unused register save/restore functions

Message ID	20210303155523.124277-13-benjamin@sipsolutions.net
State	Not Applicable
Headers	show Return-Path: <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> From: Benjamin Berg <benjamin@sipsolutions.net> To: linux-um@lists.infradead.org Cc: Benjamin Berg <benjamin@sipsolutions.net> Subject: [PATCH 12/27] um: Remove unused register save/restore functions Date: Wed, 3 Mar 2021 16:55:08 +0100 Message-Id: <20210303155523.124277-13-benjamin@sipsolutions.net> In-Reply-To: <20210303155523.124277-1-benjamin@sipsolutions.net> References: <20210303155523.124277-1-benjamin@sipsolutions.net> MIME-Version: 1.0 preview: These functions were only used when calling PTRACE_ARCH_PRCTL, but this code has been removed. Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net> --- arch/um/include/shared/registers.h \| 2 -- arch/um/os-Linux/registers.c \| 20 2 files changed, 22 deletions(-) Content analysis details: (0.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.4 KHOP_HELO_FCRDNS Relay HELO differs from its IP's reverse DNS Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" <linux-um-bounces@lists.infradead.org> Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Series	Implement SECCOMP based userland \| expand [00/27] Implement SECCOMP based userland [01/27] um: Switch printk calls to adhere to correct coding style [02/27] um: Declare fix_range_common as a static function [03/27] um: Drop support for hosts without SYSEMU_SINGLESTEP support [04/27] um: Drop NULL check from start_userspace [05/27] um: Make errors to stop ptraced child fatal during startup [06/27] um: Don't use vfprintf() for os_info() [07/27] um: Do not use printk in SIGWINCH helper thread [08/27] um: Reap winch thread if it fails [09/27] um: Do not use printk in userspace trampoline [10/27] um: Always inline stub functions [11/27] um: Rely on PTRACE_SETREGSET to set FS/GS base registers [12/27] um: Remove unused register save/restore functions [13/27] um: Mark 32bit syscall helpers as clobbering memory [14/27] um: Create signal stack memory assignment in stub_data [15/27] um: Add generic stub_syscall6 function [16/27] um: Rework syscall handling [17/27] um: Store full CSGSFS and SS register from mcontext [18/27] um: Pass full mm_id to functions creating helper processes [19/27] um: Move faultinfo extraction into userspace routine [20/27] um: Use struct uml_pt_regs for copy_context_skas0 [21/27] um: Add UML_SECCOMP configuration option [22/27] um: Add stub side of SECCOMP/futex based process handling [23/27] um: Add helper functions to get/set state for SECCOMP [24/27] um: Add SECCOMP support detection and initialization [25/27] um: Die if a child dies unexpectedly in seccomp mode [26/27] um: Implement kernel side of SECCOMP based process handling [27/27] um: Delay flushing syscalls until the thread is restarted

Message ID

20210303155523.124277-13-benjamin@sipsolutions.net

State

Not Applicable

Headers

From: Benjamin Berg <benjamin@sipsolutions.net>
To: linux-um@lists.infradead.org
Cc: Benjamin Berg <benjamin@sipsolutions.net>
Subject: [PATCH 12/27] um: Remove unused register save/restore functions
Date: Wed,  3 Mar 2021 16:55:08 +0100
Message-Id: <20210303155523.124277-13-benjamin@sipsolutions.net>
In-Reply-To: <20210303155523.124277-1-benjamin@sipsolutions.net>
References: <20210303155523.124277-1-benjamin@sipsolutions.net>
MIME-Version: 1.0
Precedence: list
Content-Type: text/plain; charset="us-ascii"
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Sender: "linux-um" <linux-um-bounces@lists.infradead.org>
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Series

Implement SECCOMP based userland | expand

Commit Message

Benjamin Berg March 3, 2021, 3:55 p.m. UTC

These functions were only used when calling PTRACE_ARCH_PRCTL, but this
code has been removed.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
---
 arch/um/include/shared/registers.h |  2 --
 arch/um/os-Linux/registers.c       | 20 --------------------
 2 files changed, 22 deletions(-)

diff --git a/arch/um/include/shared/registers.h b/arch/um/include/shared/registers.h
index 0c50fa6e8a55..2c84e8bdb35d 100644
--- a/arch/um/include/shared/registers.h
+++ b/arch/um/include/shared/registers.h
@@ -15,8 +15,6 @@  extern int save_fp_registers(int pid, unsigned long *fp_regs);
 extern int restore_fp_registers(int pid, unsigned long *fp_regs);
 extern int save_fpx_registers(int pid, unsigned long *fp_regs);
 extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
-extern int save_registers(int pid, struct uml_pt_regs *regs);
-extern int restore_registers(int pid, struct uml_pt_regs *regs);
 extern int init_registers(int pid);
 extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
 extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index 2d9270508e15..52823368e15a 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -11,26 +11,6 @@ 
 #include <sysdep/ptrace_user.h>
 #include <registers.h>
 
-int save_registers(int pid, struct uml_pt_regs *regs)
-{
-	int err;
-
-	err = ptrace(PTRACE_GETREGS, pid, 0, regs->gp);
-	if (err < 0)
-		return -errno;
-	return 0;
-}
-
-int restore_registers(int pid, struct uml_pt_regs *regs)
-{
-	int err;
-
-	err = ptrace(PTRACE_SETREGS, pid, 0, regs->gp);
-	if (err < 0)
-		return -errno;
-	return 0;
-}
-
 /* This is set once at boot time and not changed thereafter */
 
 static unsigned long exec_regs[MAX_REG_NR];

[12/27] um: Remove unused register save/restore functions

Commit Message

Patch