From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Jiri Slaby <jslaby@suse.cz>
Cc: Ingo Molnar <mingo@redhat.com>,
linux-arch <linux-arch@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"the arch/x86 maintainers" <x86@kernel.org>,
Linux PM <linux-pm@vger.kernel.org>
Subject: Re: [PATCH v6 02/28] x86/asm/suspend: drop ENTRY from local data
Date: Fri, 18 May 2018 12:03:20 +0200 [thread overview]
Message-ID: <CAJZ5v0jz-qzA-k0+6PvyALbwzpnRyB5SQpbDr9g-THiz7ZwH3g@mail.gmail.com> (raw)
In-Reply-To: <20180518091721.7604-3-jslaby@suse.cz>
On Fri, May 18, 2018 at 11:16 AM, Jiri Slaby <jslaby@suse.cz> wrote:
> ENTRY was intended for functions and shall be paired with ENDPROC.
> ENTRY also aligns symbols which creates unnecessary holes here between
> data.
>
> So drop ENTRY from saved_eip in wakeup_32 and many saved_* in wakeup_64,
> as these symbols are local only.
>
> We could use SYM_DATA_LOCAL for these symbols, but it was discouraged
> earlier [1].
>
> [1] https://lkml.org/lkml/2017/4/27/244
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: linux-pm@vger.kernel.org
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> arch/x86/kernel/acpi/wakeup_32.S | 2 +-
> arch/x86/kernel/acpi/wakeup_64.S | 12 ++++++------
> 2 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
> index 0c26b1b44e51..4203d4f0c68d 100644
> --- a/arch/x86/kernel/acpi/wakeup_32.S
> +++ b/arch/x86/kernel/acpi/wakeup_32.S
> @@ -90,7 +90,7 @@ ret_point:
> .data
> ALIGN
> ENTRY(saved_magic) .long 0
> -ENTRY(saved_eip) .long 0
> +saved_eip: .long 0
>
> # saved registers
> saved_idt: .long 0,0
> diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
> index 50b8ed0317a3..510fa12aab73 100644
> --- a/arch/x86/kernel/acpi/wakeup_64.S
> +++ b/arch/x86/kernel/acpi/wakeup_64.S
> @@ -125,12 +125,12 @@ ENTRY(do_suspend_lowlevel)
> ENDPROC(do_suspend_lowlevel)
>
> .data
> -ENTRY(saved_rbp) .quad 0
> -ENTRY(saved_rsi) .quad 0
> -ENTRY(saved_rdi) .quad 0
> -ENTRY(saved_rbx) .quad 0
> +saved_rbp: .quad 0
> +saved_rsi: .quad 0
> +saved_rdi: .quad 0
> +saved_rbx: .quad 0
>
> -ENTRY(saved_rip) .quad 0
> -ENTRY(saved_rsp) .quad 0
> +saved_rip: .quad 0
> +saved_rsp: .quad 0
>
> ENTRY(saved_magic) .quad 0
> --
> 2.16.3
>
next prev parent reply other threads:[~2018-05-18 10:03 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-18 9:16 [PATCH v6 00/28] New macros for assembler symbols Jiri Slaby
2018-05-18 9:16 ` [PATCH v6 01/28] linkage: new " Jiri Slaby
2018-05-18 9:16 ` Jiri Slaby
2018-05-18 9:16 ` [PATCH v6 02/28] x86/asm/suspend: drop ENTRY from local data Jiri Slaby
2018-05-18 10:03 ` Rafael J. Wysocki [this message]
2018-05-19 19:42 ` Pavel Machek
2018-05-18 9:16 ` [PATCH v6 03/28] x86/asm/suspend: use SYM_DATA for data Jiri Slaby
2018-05-18 10:03 ` Rafael J. Wysocki
2018-05-19 19:42 ` Pavel Machek
2018-05-18 9:16 ` [PATCH v6 04/28] x86/asm: annotate relocate_kernel Jiri Slaby
2018-05-18 9:16 ` [PATCH v6 05/28] x86/asm/entry: annotate THUNKs Jiri Slaby
2018-05-18 9:16 ` [PATCH v6 06/28] x86/asm: annotate local pseudo-functions Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 07/28] x86/asm/crypto: annotate local functions Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 08/28] x86/boot/compressed: " Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 09/28] x86/asm: annotate aliases Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 10/28] x86/asm/entry: annotate interrupt symbols properly Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 11/28] x86/asm/head: annotate data appropriatelly Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 12/28] x86/boot/compressed: " Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 13/28] um: " Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 14/28] xen/pvh: " Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 15/28] x86/asm/purgatory: start using annotations Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 16/28] x86/asm: do not annotate functions by GLOBAL Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 17/28] x86/asm: use SYM_INNER_LABEL instead of GLOBAL Jiri Slaby
2018-05-18 19:41 ` Andy Lutomirski
2018-05-19 7:44 ` Ingo Molnar
2018-05-21 7:13 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 18/28] x86/asm/realmode: use SYM_DATA_* " Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 19/28] x86/asm: kill the last GLOBAL user and remove the macro Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 20/28] x86/asm: make some functions local Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 21/28] x86/asm/ftrace: mark function_hook as function Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 22/28] x86_64/asm: add ENDs to some functions and relabel with SYM_CODE_* Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 23/28] x86_64/asm: change all ENTRY+END to SYM_CODE_* Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 24/28] x86_64/asm: change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 25/28] x86_32/asm: add ENDs to some functions and relabel with SYM_CODE_* Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 26/28] x86_32/asm: change all ENTRY+END to SYM_CODE_* Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 27/28] x86_32/asm: change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
2018-05-18 9:17 ` [PATCH v6 28/28] x86/asm: replace WEAK uses by SYM_INNER_LABEL Jiri Slaby
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