6.18-stable review patch. If anyone has any objections, please let me know.

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From: Peter Zijlstra peterz@infradead.org

[ Upstream commit 1fe4002cf7f23d70c79bda429ca2a9423ebcfdfa ]

A KASAN build bloats these single load/store helpers such that it fails to inline them:

vmlinux.o: error: objtool: irqentry_exit+0x5e8: call to instruction_pointer_set() with UACCESS enabled

Make sure the compiler isn't allowed to do stupid.

Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Signed-off-by: Ingo Molnar mingo@kernel.org Link: https://patch.msgid.link/20251031105435.GU4068168@noisy.programming.kicks-as... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/include/asm/ptrace.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h index 50f75467f73d0..b5dec859bc75a 100644 --- a/arch/x86/include/asm/ptrace.h +++ b/arch/x86/include/asm/ptrace.h @@ -187,12 +187,12 @@ convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs); extern void send_sigtrap(struct pt_regs *regs, int error_code, int si_code);

-static inline unsigned long regs_return_value(struct pt_regs *regs) +static __always_inline unsigned long regs_return_value(struct pt_regs *regs) { return regs->ax; }

-static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc) +static __always_inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc) { regs->ax = rc; } @@ -277,34 +277,34 @@ static __always_inline bool ip_within_syscall_gap(struct pt_regs *regs) } #endif

-static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) +static __always_inline unsigned long kernel_stack_pointer(struct pt_regs *regs) { return regs->sp; }

-static inline unsigned long instruction_pointer(struct pt_regs *regs) +static __always_inline unsigned long instruction_pointer(struct pt_regs *regs) { return regs->ip; }

-static inline void instruction_pointer_set(struct pt_regs *regs, - unsigned long val) +static __always_inline +void instruction_pointer_set(struct pt_regs *regs, unsigned long val) { regs->ip = val; }

-static inline unsigned long frame_pointer(struct pt_regs *regs) +static __always_inline unsigned long frame_pointer(struct pt_regs *regs) { return regs->bp; }

-static inline unsigned long user_stack_pointer(struct pt_regs *regs) +static __always_inline unsigned long user_stack_pointer(struct pt_regs *regs) { return regs->sp; }

-static inline void user_stack_pointer_set(struct pt_regs *regs, - unsigned long val) +static __always_inline +void user_stack_pointer_set(struct pt_regs *regs, unsigned long val) { regs->sp = val; }