Unverified Commit 7962c2ed authored by Peter Collingbourne's avatar Peter Collingbourne Committed by Arnd Bergmann
Browse files

arch: remove unused function syscall_set_arguments() 



This function appears to have been unused since it was first introduced in
commit 828c365c ("tracehook: asm/syscall.h").

Signed-off-by: default avatarPeter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/I8ce04f002903a37c0b6c1d16e9b2a3afa716c097


Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 6880fa6c

arch/arm/include/asm/syscall.h

+0 −10
Original line number Diff line number Diff line
@@ -77,16 +77,6 @@ static inline void syscall_get_arguments(struct task_struct *task, 
	memcpy(args, &regs->ARM_r0 + 1, 5 * sizeof(args[0]));

}



static inline void syscall_set_arguments(struct task_struct *task,

					 struct pt_regs *regs,

					 const unsigned long *args)

{

	regs->ARM_ORIG_r0 = args[0];

	args++;



	memcpy(&regs->ARM_r0 + 1, args, 5 * sizeof(args[0]));

}



static inline int syscall_get_arch(struct task_struct *task)

{

	/* ARM tasks don't change audit architectures on the fly. */

arch/arm64/include/asm/syscall.h

+0 −10
Original line number Diff line number Diff line
@@ -73,16 +73,6 @@ static inline void syscall_get_arguments(struct task_struct *task, 
	memcpy(args, &regs->regs[1], 5 * sizeof(args[0]));

}



static inline void syscall_set_arguments(struct task_struct *task,

					 struct pt_regs *regs,

					 const unsigned long *args)

{

	regs->orig_x0 = args[0];

	args++;



	memcpy(&regs->regs[1], args, 5 * sizeof(args[0]));

}



/*

 * We don't care about endianness (__AUDIT_ARCH_LE bit) here because

 * AArch64 has the same system calls both on little- and big- endian.

arch/csky/include/asm/syscall.h

+0 −9
Original line number Diff line number Diff line
@@ -59,15 +59,6 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, 
	memcpy(args, &regs->a1, 5 * sizeof(args[0]));

}



static inline void

syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,

		      const unsigned long *args)

{

	regs->orig_a0 = args[0];

	args++;

	memcpy(&regs->a1, args, 5 * sizeof(regs->a1));

}



static inline int

syscall_get_arch(struct task_struct *task)

{

arch/ia64/include/asm/syscall.h

+2 −15
Original line number Diff line number Diff line
@@ -55,21 +55,8 @@ static inline void syscall_set_return_value(struct task_struct *task, 
	}

}



extern void ia64_syscall_get_set_arguments(struct task_struct *task,

	struct pt_regs *regs, unsigned long *args, int rw);

static inline void syscall_get_arguments(struct task_struct *task,

					 struct pt_regs *regs,

					 unsigned long *args)

{

	ia64_syscall_get_set_arguments(task, regs, args, 0);

}



static inline void syscall_set_arguments(struct task_struct *task,

					 struct pt_regs *regs,

					 unsigned long *args)

{

	ia64_syscall_get_set_arguments(task, regs, args, 1);

}

extern void syscall_get_arguments(struct task_struct *task,

	struct pt_regs *regs, unsigned long *args);



static inline int syscall_get_arch(struct task_struct *task)

{

arch/ia64/kernel/ptrace.c

+12 −19
Original line number Diff line number Diff line
@@ -2001,17 +2001,16 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *tsk) 
	return &user_ia64_view;

}



struct syscall_get_set_args {

struct syscall_get_args {

	unsigned int i;

	unsigned int n;

	unsigned long *args;

	struct pt_regs *regs;

	int rw;

};



static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data)

static void syscall_get_args_cb(struct unw_frame_info *info, void *data)

{

	struct syscall_get_set_args *args = data;

	struct syscall_get_args *args = data;

	struct pt_regs *pt = args->regs;

	unsigned long *krbs, cfm, ndirty, nlocals, nouts;

	int i, count;
@@ -2042,37 +2041,31 @@ static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data) 
	/* Iterate over outs. */

	for (i = 0; i < count; i++) {

		int j = ndirty + nlocals + i + args->i;

		if (args->rw)

			*ia64_rse_skip_regs(krbs, j) = args->args[i];

		else

		args->args[i] = *ia64_rse_skip_regs(krbs, j);

	}



	if (!args->rw) {

	while (i < args->n) {

		args->args[i] = 0;

		i++;

	}

}

}



void ia64_syscall_get_set_arguments(struct task_struct *task,

	struct pt_regs *regs, unsigned long *args, int rw)

void syscall_get_arguments(struct task_struct *task,

	struct pt_regs *regs, unsigned long *args)

{

	struct syscall_get_set_args data = {

	struct syscall_get_args data = {

		.i = 0,

		.n = 6,

		.args = args,

		.regs = regs,

		.rw = rw,

	};



	if (task == current)

		unw_init_running(syscall_get_set_args_cb, &data);

		unw_init_running(syscall_get_args_cb, &data);

	else {

		struct unw_frame_info ufi;

		memset(&ufi, 0, sizeof(ufi));

		unw_init_from_blocked_task(&ufi, task);

		syscall_get_set_args_cb(&ufi, &data);

		syscall_get_args_cb(&ufi, &data);

	}

}