Commit 597d77d2 authored Oct 15, 2022 by Sergey Shtylyov Committed by Andrew Morton Nov 15, 2022

regset: make user_regset_copyin_ignore() void

user_regset_copyin_ignore() apparently cannot fail and so always returns 0.
Let's make this function return *void* instead of *int*...

Link: https://lkml.kernel.org/r/20221014212235.10770-14-s.shtylyov@omp.ru

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Cc: Brian Cain <bcain@quicinc.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

parent 37f65303

include/linux/regset.h

+7 −8

Original line number	Original line	Diff line number	Diff line
	@@ -275,7 +275,7 @@ static inline int user_regset_copyin(unsigned int pos, unsigned int count,
	return 0;		return 0;
	}		}

	static inline int user_regset_copyin_ignore(unsigned int *pos,		static inline void user_regset_copyin_ignore(unsigned int *pos,
	unsigned int *count,		unsigned int *count,
	const void **kbuf,		const void **kbuf,
	const void __user **ubuf,		const void __user **ubuf,
	@@ -283,7 +283,7 @@ static inline int user_regset_copyin_ignore(unsigned int *pos,
	const int end_pos)		const int end_pos)
	{		{
	if (*count == 0)		if (*count == 0)
	return 0;		return;
	BUG_ON(*pos < start_pos);		BUG_ON(*pos < start_pos);
	if (end_pos < 0 \|\| *pos < end_pos) {		if (end_pos < 0 \|\| *pos < end_pos) {
	unsigned int copy = (end_pos < 0 ? *count		unsigned int copy = (end_pos < 0 ? *count
	@@ -295,7 +295,6 @@ static inline int user_regset_copyin_ignore(unsigned int *pos,
	*pos += copy;		*pos += copy;
	*count -= copy;		*count -= copy;
	}		}
	return 0;
	}		}

	extern int regset_get(struct task_struct *target,		extern int regset_get(struct task_struct *target,