From: Bjorn Helgaas <bhelgaas@google.com>
To: Jason Wessel <jason.wessel@windriver.com>,
Ralf Baechle <ralf@linux-mips.org>,
Ingo Molnar <mingo@redhat.com>,
John Stultz <john.stultz@linaro.org>,
Eric Paris <eparis@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Harvey Harrison <harvey.harrison@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
"linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>
Subject: Re: [PATCH v1 08/10] kgdb: Remove "weak" from kgdb_arch_pc() declaration
Date: Wed, 15 Oct 2014 17:35:05 -0600 [thread overview]
Message-ID: <CAErSpo4j060imN0SOZM0LUc0hymDZMg4b3PcMhCChsubWfcNGA@mail.gmail.com> (raw)
In-Reply-To: <20141015170637.4063.22185.stgit@bhelgaas-glaptop2.roam.corp.google.com>
[+cc Harvey, Vineet, linux-sh; arc, sh, and x86 have kgdb_arch_pc()
definitions and could see issues from this]
On Wed, Oct 15, 2014 at 11:06 AM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> kernel/debug/debug_core.c provides a default kgdb_arch_pc() definition
> explicitly marked "weak". Several architectures provide their own
> definitions intended to override the default, but the "weak" attribute on
> the declaration applied to the arch definitions as well, so the linker
> chose one based on link order (see 10629d711ed7 ("PCI: Remove __weak
> annotation from pcibios_get_phb_of_node decl")).
>
> Remove the "weak" attribute from the declaration so we always prefer a
> non-weak definition over the weak one, independent of link order.
>
> Fixes: 688b744d8bc8 ("kgdb: fix signedness mixmatches, add statics, add declaration to header")
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> CC: Harvey Harrison <harvey.harrison@gmail.com>
> ---
> include/linux/kgdb.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
> index 6b06d378f3df..e465bb15912d 100644
> --- a/include/linux/kgdb.h
> +++ b/include/linux/kgdb.h
> @@ -283,7 +283,7 @@ struct kgdb_io {
>
> extern struct kgdb_arch arch_kgdb_ops;
>
> -extern unsigned long __weak kgdb_arch_pc(int exception, struct pt_regs *regs);
> +extern unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs);
>
> #ifdef CONFIG_SERIAL_KGDB_NMI
> extern int kgdb_register_nmi_console(void);
>
next prev parent reply other threads:[~2014-10-15 23:35 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-15 17:05 [PATCH v1 00/10] Remove weak function declarations Bjorn Helgaas
2014-10-15 17:05 ` [PATCH v1 01/10] audit: Remove "weak" from audit_classify_compat_syscall() declaration Bjorn Helgaas
2014-10-15 23:25 ` Bjorn Helgaas
2014-10-16 17:02 ` Richard Guy Briggs
2014-10-15 17:05 ` [PATCH v1 02/10] x86, intel-mid: Remove "weak" from function declarations Bjorn Helgaas
2014-10-15 23:26 ` Bjorn Helgaas
2014-10-17 0:42 ` sathyanarayanan kuppuswamy
2014-10-17 1:41 ` David Cohen
2014-10-20 16:15 ` Bjorn Helgaas
2014-10-20 17:55 ` David Cohen
2014-10-16 5:09 ` Ingo Molnar
2014-10-15 17:06 ` [PATCH v1 03/10] MIPS: CPC: Make mips_cpc_phys_base() static Bjorn Helgaas
2014-10-15 23:27 ` Bjorn Helgaas
2014-10-15 23:28 ` Bjorn Helgaas
2014-10-21 20:03 ` Bjorn Helgaas
2014-10-15 17:06 ` [PATCH v1 04/10] MIPS: Remove "weak" from platform_maar_init() declaration Bjorn Helgaas
2014-10-15 23:27 ` Bjorn Helgaas
2014-10-21 20:04 ` Bjorn Helgaas
2014-10-15 17:06 ` [PATCH v1 05/10] MIPS: MT: Move "weak" from vpe_run() declaration to definition Bjorn Helgaas
2014-10-15 23:28 ` Bjorn Helgaas
2014-10-16 13:49 ` Bjorn Helgaas
2014-10-21 20:05 ` Bjorn Helgaas
2014-10-15 17:06 ` [PATCH v1 06/10] clocksource: Remove "weak" from clocksource_default_clock() declaration Bjorn Helgaas
2014-10-15 17:36 ` John Stultz
2014-10-15 23:30 ` Bjorn Helgaas
2014-10-16 7:22 ` Martin Schwidefsky
2014-10-16 13:40 ` Bjorn Helgaas
2014-10-16 13:45 ` Martin Schwidefsky
2014-10-16 5:10 ` Ingo Molnar
2014-10-15 17:06 ` [PATCH v1 07/10] vmcore: Remove "weak" from function declarations Bjorn Helgaas
2014-10-15 23:31 ` Bjorn Helgaas
2014-10-15 23:44 ` Bjorn Helgaas
2014-10-16 7:23 ` Martin Schwidefsky
2014-10-16 20:11 ` Vivek Goyal
2014-10-15 17:06 ` [PATCH v1 08/10] kgdb: Remove "weak" from kgdb_arch_pc() declaration Bjorn Helgaas
2014-10-15 23:35 ` Bjorn Helgaas [this message]
2014-10-16 13:38 ` Vineet Gupta
2014-10-17 7:59 ` Vineet Gupta
2014-10-20 16:20 ` Bjorn Helgaas
2014-10-16 0:07 ` Harvey Harrison
2014-10-15 17:06 ` [PATCH v1 09/10] memory-hotplug: Remove "weak" from memory_block_size_bytes() declaration Bjorn Helgaas
2014-10-15 23:38 ` Bjorn Helgaas
2014-10-16 7:23 ` Martin Schwidefsky
2014-10-15 17:06 ` [PATCH v1 10/10] uprobes: Remove "weak" from function declarations Bjorn Helgaas
2014-10-15 23:42 ` Bjorn Helgaas
2014-10-16 5:10 ` Ingo Molnar
2014-10-16 5:57 ` Srikar Dronamraju
2014-10-15 18:27 ` [PATCH v1 00/10] Remove weak " Andrew Morton
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