From: Steven Rostedt <rostedt@goodmis.org>
To: Changbin Du <changbin.du@gmail.com>
Cc: yamada.masahiro@socionext.com, michal.lkml@markovi.net,
tglx@linutronix.de, mingo@redhat.com, linux@armlinux.org.uk,
akpm@linux-foundation.org, gregkh@linuxfoundation.org,
x86@kernel.org, linux-kbuild@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sparse@vger.kernel.org, robin.murphy@arm.com
Subject: Re: [PATCH v3 1/4] x86/mm: declare check_la57_support() as inline
Date: Sun, 28 Oct 2018 14:09:11 -0400 [thread overview]
Message-ID: <20181028140911.21d49629@vmware.local.home> (raw)
In-Reply-To: <20181028130945.23581-2-changbin.du@gmail.com>
On Sun, 28 Oct 2018 13:09:42 +0000
Changbin Du <changbin.du@gmail.com> wrote:
> The level4_kernel_pgt is only defined when X86_5LEVEL is enabled.
> So declare check_la57_support() as inline to make sure the code
> referring to level4_kernel_pgt is optimized out. This is a preparation
> for CONFIG_CC_OPTIMIZE_FOR_DEBUGGING.
>
> Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
> arch/x86/kernel/head64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
> index 5dc377dc9d7b..5ae682f2aa83 100644
> --- a/arch/x86/kernel/head64.c
> +++ b/arch/x86/kernel/head64.c
> @@ -98,7 +98,7 @@ static bool __head check_la57_support(unsigned long physaddr)
> return true;
> }
> #else
> -static bool __head check_la57_support(unsigned long physaddr)
> +static inline bool __head check_la57_support(unsigned long physaddr)
> {
> return false;
> }
next prev parent reply other threads:[~2018-10-28 18:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-28 13:09 [PATCH v3 0/4] kernel hacking: GCC optimization for better debug experience (-Og) Changbin Du
2018-10-28 13:09 ` [PATCH v3 1/4] x86/mm: declare check_la57_support() as inline Changbin Du
2018-10-28 18:09 ` Steven Rostedt [this message]
2018-10-29 13:04 ` Masahiro Yamada
2018-11-02 11:27 ` Borislav Petkov
2018-11-09 16:27 ` Masahiro Yamada
2018-11-10 1:41 ` Changbin Du
2018-10-28 13:09 ` [PATCH v3 2/4] kernel hacking: new config NO_AUTO_INLINE to disable compiler auto-inline optimizations Changbin Du
2018-10-29 13:03 ` Masahiro Yamada
2018-10-28 13:09 ` [PATCH v3 3/4] ARM: mm: fix build error in fix_to_virt with CONFIG_CC_OPTIMIZE_FOR_DEBUGGING Changbin Du
2018-10-29 13:05 ` Masahiro Yamada
2018-10-28 13:09 ` [PATCH v3 4/4] kernel hacking: new config CC_OPTIMIZE_FOR_DEBUGGING to apply GCC -Og optimization Changbin Du
2018-10-29 13:16 ` Masahiro Yamada
2018-10-29 14:54 ` Changbin Du
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=20181028140911.21d49629@vmware.local.home \
--to=rostedt@goodmis.org \
--cc=akpm@linux-foundation.org \
--cc=changbin.du@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sparse@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=michal.lkml@markovi.net \
--cc=mingo@redhat.com \
--cc=robin.murphy@arm.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
--cc=yamada.masahiro@socionext.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).