From: Borislav Petkov <bp@suse.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: hpa@zytor.com, tglx@linutronix.de, wang.yi59@zte.com.cn,
linux-kernel@vger.kernel.org, matz@suse.de,
linux-tip-commits@vger.kernel.org
Subject: Re: [tip:ras/core] x86/mce: Fix -Wmissing-prototypes warnings
Date: Mon, 12 Nov 2018 13:19:02 +0100 [thread overview]
Message-ID: <20181112121902.GA9953@zn.tnic> (raw)
In-Reply-To: <20181112052453.GA126795@gmail.com>
On Mon, Nov 12, 2018 at 06:24:53AM +0100, Ingo Molnar wrote:
> Nit: please use full declarations in prototypes, i.e. 'struct pt_regs
> *regs' or so.
Done.
I'll test them some more and add them to tip:ras/core.
> Much of traps.h does this wrong so I guess this should be a separate
> cleanup patch.
See below.
Btw, do you remember why do_page_fault()'s error_code is "unsigned long"
vs all the others which are only "long" type?
Because the error code pushed by the hardware is only a couple of (least
significant) bits. 5 to be exact + there's bit 15 which is new for SGX.
But all that should still fit in a long.
Hmmm?
---
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index afbc87206886..877afdedbbc5 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -61,34 +61,34 @@ asmlinkage void xen_machine_check(void);
asmlinkage void xen_simd_coprocessor_error(void);
#endif
-dotraplinkage void do_divide_error(struct pt_regs *, long);
-dotraplinkage void do_debug(struct pt_regs *, long);
-dotraplinkage void do_nmi(struct pt_regs *, long);
-dotraplinkage void do_int3(struct pt_regs *, long);
-dotraplinkage void do_overflow(struct pt_regs *, long);
-dotraplinkage void do_bounds(struct pt_regs *, long);
-dotraplinkage void do_invalid_op(struct pt_regs *, long);
-dotraplinkage void do_device_not_available(struct pt_regs *, long);
-dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
-dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
-dotraplinkage void do_segment_not_present(struct pt_regs *, long);
-dotraplinkage void do_stack_segment(struct pt_regs *, long);
+dotraplinkage void do_divide_error(struct pt_regs *regs, long error_code);
+dotraplinkage void do_debug(struct pt_regs *regs, long error_code);
+dotraplinkage void do_nmi(struct pt_regs *regs, long error_code);
+dotraplinkage void do_int3(struct pt_regs *regs, long error_code);
+dotraplinkage void do_overflow(struct pt_regs *regs, long error_code);
+dotraplinkage void do_bounds(struct pt_regs *regs, long error_code);
+dotraplinkage void do_invalid_op(struct pt_regs *regs, long error_code);
+dotraplinkage void do_device_not_available(struct pt_regs *regs, long error_code);
+dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *regs, long error_code);
+dotraplinkage void do_invalid_TSS(struct pt_regs *regs, long error_code);
+dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code);
+dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
#ifdef CONFIG_X86_64
-dotraplinkage void do_double_fault(struct pt_regs *, long);
+dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
#endif
-dotraplinkage void do_general_protection(struct pt_regs *, long);
-dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
-dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
-dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
-dotraplinkage void do_alignment_check(struct pt_regs *, long);
+dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
+dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
+dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code);
+dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code);
+dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code);
#ifdef CONFIG_X86_MCE
-dotraplinkage void do_machine_check(struct pt_regs *, long);
+dotraplinkage void do_machine_check(struct pt_regs *regs, long error_code);
#endif
-dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
+dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code);
#ifdef CONFIG_X86_32
-dotraplinkage void do_iret_error(struct pt_regs *, long);
+dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code);
#endif
-dotraplinkage void do_mce(struct pt_regs *, long);
+dotraplinkage void do_mce(struct pt_regs *regs, long error_code);
static inline int get_si_code(unsigned long condition)
{
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
next prev parent reply other threads:[~2018-11-12 12:19 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-08 1:12 [PATCH v2] x86/cpu: fix prototype warning Yi Wang
2018-11-08 15:03 ` Borislav Petkov
2018-11-08 15:32 ` Borislav Petkov
2018-11-08 15:35 ` Thomas Gleixner
2018-11-08 15:41 ` Borislav Petkov
2018-11-09 16:07 ` David Laight
2018-11-10 10:51 ` [tip:ras/core] x86/mce: Fix -Wmissing-prototypes warnings tip-bot for Borislav Petkov
2018-11-10 14:16 ` Borislav Petkov
2018-11-12 5:24 ` Ingo Molnar
2018-11-12 12:19 ` Borislav Petkov [this message]
2018-11-13 14:22 ` [tip:x86/cleanups] x86/traps: Complete prototype declarations tip-bot for Borislav Petkov
2018-11-14 13:19 ` tip-bot for Borislav Petkov
2018-11-13 14:21 ` [tip:x86/cleanups] x86/mce: Fix -Wmissing-prototypes warnings tip-bot for Borislav Petkov
2018-11-14 13:18 ` tip-bot for Borislav Petkov
2018-11-08 15:47 ` [PATCH v2] x86/cpu: fix prototype warning Michael Matz
2018-11-08 17:22 ` Borislav Petkov
[not found] ` <201811090843126464658@zte.com.cn>
2018-11-09 10:55 ` Borislav Petkov
2018-11-09 11:12 ` Greg KH
2018-11-09 11:41 ` Borislav Petkov
2018-11-09 12:25 ` Greg KH
2018-11-09 22:17 ` Borislav Petkov
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