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>,
Michael Holzheu <holzheu@linux.vnet.ibm.com>,
Vivek Goyal <vgoyal@redhat.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>
Subject: Re: [PATCH v1 07/10] vmcore: Remove "weak" from function declarations
Date: Wed, 15 Oct 2014 17:44:29 -0600 [thread overview]
Message-ID: <CAErSpo5f_HgiyKS3Ho1DHbdvBo200RSFokEw3wmQ7k-1FuNzkw@mail.gmail.com> (raw)
In-Reply-To: <CAErSpo7zzofNsoGHuzfgfSEODyfkRs2FmyU-r3GjGDnNUF_0gw@mail.gmail.com>
[+cc Martin, Heiko, linux-s390, since s390 could see issues from this.
Sorry for all the spam; I should have gotten this right the first
time.]
On Wed, Oct 15, 2014 at 5:31 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> [+cc Michael, Vivek; sorry, I botched my "stg mail" so you weren't
> included the first time]
>
> On Wed, Oct 15, 2014 at 11:06 AM, Bjorn Helgaas <bhelgaas@google.com> wrote:
>> For the following functions:
>>
>> elfcorehdr_alloc()
>> elfcorehdr_free()
>> elfcorehdr_read()
>> elfcorehdr_read_notes()
>> remap_oldmem_pfn_range()
>>
>> fs/proc/vmcore.c provides default definitions explicitly marked "weak".
>> arch/s390 provides its own definitions intended to override the default
>> ones, but the "weak" attribute on the declarations applied to the s390
>> 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 declarations so we always prefer a
>> non-weak definition over the weak one, independent of link order.
>>
>> Fixes: be8a8d069e50 ("vmcore: introduce ELF header in new memory feature")
>> Fixes: 9cb218131de1 ("vmcore: introduce remap_oldmem_pfn_range()")
>> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>> CC: Michael Holzheu <holzheu@linux.vnet.ibm.com>
>> CC: Vivek Goyal <vgoyal@redhat.com>
>> ---
>> include/linux/crash_dump.h | 15 +++++++--------
>> 1 file changed, 7 insertions(+), 8 deletions(-)
>>
>> diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
>> index 72ab536ad3de..3849fce7ecfe 100644
>> --- a/include/linux/crash_dump.h
>> +++ b/include/linux/crash_dump.h
>> @@ -14,14 +14,13 @@
>> extern unsigned long long elfcorehdr_addr;
>> extern unsigned long long elfcorehdr_size;
>>
>> -extern int __weak elfcorehdr_alloc(unsigned long long *addr,
>> - unsigned long long *size);
>> -extern void __weak elfcorehdr_free(unsigned long long addr);
>> -extern ssize_t __weak elfcorehdr_read(char *buf, size_t count, u64 *ppos);
>> -extern ssize_t __weak elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos);
>> -extern int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
>> - unsigned long from, unsigned long pfn,
>> - unsigned long size, pgprot_t prot);
>> +extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size);
>> +extern void elfcorehdr_free(unsigned long long addr);
>> +extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);
>> +extern ssize_t elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos);
>> +extern int remap_oldmem_pfn_range(struct vm_area_struct *vma,
>> + unsigned long from, unsigned long pfn,
>> + unsigned long size, pgprot_t prot);
>>
>> extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
>> unsigned long, int);
>>
next prev parent reply other threads:[~2014-10-15 23:44 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 [this message]
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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAErSpo5f_HgiyKS3Ho1DHbdvBo200RSFokEw3wmQ7k-1FuNzkw@mail.gmail.com \
--to=bhelgaas@google.com \
--cc=akpm@linux-foundation.org \
--cc=eparis@redhat.com \
--cc=heiko.carstens@de.ibm.com \
--cc=holzheu@linux.vnet.ibm.com \
--cc=hpa@zytor.com \
--cc=jason.wessel@windriver.com \
--cc=john.stultz@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=ralf@linux-mips.org \
--cc=schwidefsky@de.ibm.com \
--cc=tglx@linutronix.de \
--cc=vgoyal@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).