From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Arnd Bergmann <arnd@arndb.de>,
y2038@lists.linaro.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org,
Allison Randal <allison@lohutok.net>
Subject: Re: [Y2038] [PATCH 07/23] y2038: vdso: powerpc: avoid timespec references
Date: Wed, 20 Nov 2019 22:43:13 +0000 [thread overview]
Message-ID: <4faa78cd0a86cf5d0aea9bb16d03145c5745450b.camel@codethink.co.uk> (raw)
In-Reply-To: <20191108210824.1534248-7-arnd@arndb.de>
On Fri, 2019-11-08 at 22:07 +0100, Arnd Bergmann wrote:
[...]
> --- a/arch/powerpc/kernel/vdso32/gettimeofday.S
> +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
> @@ -15,10 +15,8 @@
> /* Offset for the low 32-bit part of a field of long type */
> #if defined(CONFIG_PPC64) && defined(CONFIG_CPU_BIG_ENDIAN)
> #define LOPART 4
> -#define TSPEC_TV_SEC TSPC64_TV_SEC+LOPART
> #else
> #define LOPART 0
> -#define TSPEC_TV_SEC TSPC32_TV_SEC
> #endif
>
> .text
> @@ -192,7 +190,7 @@ V_FUNCTION_BEGIN(__kernel_time)
> bl __get_datapage@local
> mr r9, r3 /* datapage ptr in r9 */
>
> - lwz r3,STAMP_XTIME+TSPEC_TV_SEC(r9)
> + lwz r3,STAMP_XTIME_SEC+LOWPART(r9)
"LOWPART" should be "LOPART".
>
> cmplwi r11,0 /* check if t is NULL */
> beq 2f
> @@ -268,7 +266,7 @@ __do_get_tspec:
> * as a 32.32 fixed-point number in r3 and r4.
> * Load & add the xtime stamp.
> */
> - lwz r5,STAMP_XTIME+TSPEC_TV_SEC(r9)
> + lwz r5,STAMP_XTIME_SEC+LOWPART(r9)
Same here.
> lwz r6,STAMP_SEC_FRAC(r9)
> addc r4,r4,r6
> adde r3,r3,r5
[...]
--
Ben Hutchings, Software Developer Codethink Ltd
https://www.codethink.co.uk/ Dale House, 35 Dale Street
Manchester, M1 2HF, United Kingdom
WARNING: multiple messages have this Message-ID (diff)
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Arnd Bergmann <arnd@arndb.de>,
y2038@lists.linaro.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org,
Allison Randal <allison@lohutok.net>
Subject: Re: [Y2038] [PATCH 07/23] y2038: vdso: powerpc: avoid timespec references
Date: Wed, 20 Nov 2019 22:43:13 +0000 [thread overview]
Message-ID: <4faa78cd0a86cf5d0aea9bb16d03145c5745450b.camel@codethink.co.uk> (raw)
In-Reply-To: <20191108210824.1534248-7-arnd@arndb.de>
On Fri, 2019-11-08 at 22:07 +0100, Arnd Bergmann wrote:
[...]
> --- a/arch/powerpc/kernel/vdso32/gettimeofday.S
> +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
> @@ -15,10 +15,8 @@
> /* Offset for the low 32-bit part of a field of long type */
> #if defined(CONFIG_PPC64) && defined(CONFIG_CPU_BIG_ENDIAN)
> #define LOPART 4
> -#define TSPEC_TV_SEC TSPC64_TV_SEC+LOPART
> #else
> #define LOPART 0
> -#define TSPEC_TV_SEC TSPC32_TV_SEC
> #endif
>
> .text
> @@ -192,7 +190,7 @@ V_FUNCTION_BEGIN(__kernel_time)
> bl __get_datapage@local
> mr r9, r3 /* datapage ptr in r9 */
>
> - lwz r3,STAMP_XTIME+TSPEC_TV_SEC(r9)
> + lwz r3,STAMP_XTIME_SEC+LOWPART(r9)
"LOWPART" should be "LOPART".
>
> cmplwi r11,0 /* check if t is NULL */
> beq 2f
> @@ -268,7 +266,7 @@ __do_get_tspec:
> * as a 32.32 fixed-point number in r3 and r4.
> * Load & add the xtime stamp.
> */
> - lwz r5,STAMP_XTIME+TSPEC_TV_SEC(r9)
> + lwz r5,STAMP_XTIME_SEC+LOWPART(r9)
Same here.
> lwz r6,STAMP_SEC_FRAC(r9)
> addc r4,r4,r6
> adde r3,r3,r5
[...]
--
Ben Hutchings, Software Developer Codethink Ltd
https://www.codethink.co.uk/ Dale House, 35 Dale Street
Manchester, M1 2HF, United Kingdom
next prev parent reply other threads:[~2019-11-20 22:43 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 21:02 [PATCH 00/23] y2038 cleanups Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 01/23] y2038: remove CONFIG_64BIT_TIME Arnd Bergmann
2019-11-20 22:28 ` [Y2038] " Ben Hutchings
2019-11-20 22:58 ` Dmitry Safonov
2019-11-08 21:07 ` [PATCH 02/23] y2038: add __kernel_old_timespec and __kernel_old_time_t Arnd Bergmann
2019-11-09 19:02 ` Deepa Dinamani
2019-11-20 22:30 ` [Y2038] " Ben Hutchings
2019-11-21 14:17 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 03/23] y2038: vdso: change timeval to __kernel_old_timeval Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-13 21:56 ` Thomas Gleixner
2019-11-13 21:56 ` Thomas Gleixner
2019-11-13 21:56 ` Thomas Gleixner
2019-11-13 21:56 ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 04/23] y2038: vdso: change timespec to __kernel_old_timespec Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 05/23] y2038: vdso: change time_t to __kernel_old_time_t Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-13 21:57 ` Thomas Gleixner
2019-11-13 21:57 ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 06/23] y2038: vdso: nds32: open-code timespec_add_ns() Arnd Bergmann
2019-11-08 21:07 ` [PATCH 07/23] y2038: vdso: powerpc: avoid timespec references Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-20 22:43 ` Ben Hutchings [this message]
2019-11-20 22:43 ` [Y2038] " Ben Hutchings
2019-11-21 14:23 ` Arnd Bergmann
2019-11-21 14:23 ` Arnd Bergmann
2019-11-21 16:25 ` Christophe Leroy
2019-11-21 16:25 ` Christophe Leroy
2019-11-27 11:03 ` Arnd Bergmann
2019-11-27 11:03 ` Arnd Bergmann
2019-12-02 12:55 ` Christophe Leroy
2019-12-02 12:55 ` Christophe Leroy
2019-12-02 14:03 ` Arnd Bergmann
2019-12-02 14:03 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 08/23] y2038: ipc: remove __kernel_time_t reference from headers Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-20 22:49 ` [Y2038] " Ben Hutchings
2019-11-20 22:49 ` Ben Hutchings
2019-11-20 22:49 ` Ben Hutchings
2019-11-21 14:28 ` [Y2038] " Arnd Bergmann
2019-11-21 14:28 ` Arnd Bergmann
2019-11-21 14:28 ` Arnd Bergmann
2019-11-21 14:28 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 09/23] y2038: stat: avoid 'time_t' in 'struct stat' Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:07 ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 10/23] y2038: uapi: change __kernel_time_t to __kernel_old_time_t Arnd Bergmann
2019-11-09 19:03 ` Deepa Dinamani
2019-11-11 12:38 ` Christian Brauner
2019-11-08 21:12 ` [PATCH 11/23] y2038: rusage: use __kernel_old_timeval Arnd Bergmann
2019-11-12 21:09 ` Cyrill Gorcunov
2019-11-13 10:02 ` Arnd Bergmann
2019-11-13 17:22 ` Cyrill Gorcunov
2019-11-14 0:38 ` Christian Brauner
2019-11-14 0:38 ` Christian Brauner
2019-11-14 10:18 ` Arnd Bergmann
2019-11-14 10:23 ` Christian Brauner
2019-11-08 21:12 ` [PATCH 12/23] y2038: syscalls: change remaining timeval to __kernel_old_timeval Arnd Bergmann
2019-11-08 21:12 ` Arnd Bergmann
2019-11-11 12:44 ` Christian Brauner
2019-11-11 12:44 ` Christian Brauner
2019-11-11 12:44 ` Christian Brauner
2019-11-13 22:39 ` Rafael J. Wysocki
2019-11-13 22:39 ` Rafael J. Wysocki
2019-11-08 21:12 ` [PATCH 13/23] y2038: socket: remove timespec reference in timestamping Arnd Bergmann
2019-11-09 19:03 ` Deepa Dinamani
2019-11-11 20:24 ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 14/23] y2038: make ns_to_compat_timeval use __kernel_old_timeval Arnd Bergmann
2019-11-08 21:12 ` [PATCH 15/23] y2038: elfcore: Use __kernel_old_timeval for process times Arnd Bergmann
2019-11-08 21:12 ` [PATCH 16/23] y2038: timerfd: Use timespec64 internally Arnd Bergmann
2019-11-13 21:49 ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 17/23] y2038: time: avoid timespec usage in settimeofday() Arnd Bergmann
2019-11-13 21:53 ` Thomas Gleixner
2019-11-14 11:06 ` Arnd Bergmann
2019-11-14 11:06 ` Arnd Bergmann
2019-11-14 14:04 ` Thomas Gleixner
2019-11-14 14:04 ` Thomas Gleixner
2019-11-14 14:35 ` Arnd Bergmann
2019-11-14 23:01 ` Abel Vesa
2019-11-15 7:58 ` Arnd Bergmann
2019-11-15 10:27 ` Rasmus Villemoes
2019-11-15 13:50 ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 18/23] y2038: itimer: compat handling to itimer.c Arnd Bergmann
2019-11-13 21:54 ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 19/23] y2038: use compat_{get,set}_itimer on alpha Arnd Bergmann
2019-12-02 13:13 ` Guenter Roeck
2019-11-08 21:12 ` [PATCH 20/23] y2038: move itimer reset into itimer.c Arnd Bergmann
2019-11-09 13:43 ` Ondrej Mosnacek
2019-11-09 21:02 ` Arnd Bergmann
2019-11-09 23:07 ` Ondrej Mosnacek
2019-11-11 10:57 ` Arnd Bergmann
2019-11-14 8:51 ` Ondrej Mosnacek
2019-11-14 10:51 ` Thomas Gleixner
2019-11-13 22:03 ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 21/23] y2038: itimer: change implementation to timespec64 Arnd Bergmann
2019-11-13 22:28 ` Thomas Gleixner
2019-11-14 2:06 ` Steven Rostedt
2019-11-14 10:48 ` Thomas Gleixner
2019-11-14 10:52 ` Arnd Bergmann
2019-11-14 10:51 ` Arnd Bergmann
2019-11-14 10:57 ` Thomas Gleixner
2019-11-21 16:52 ` [Y2038] " Ben Hutchings
2019-11-25 20:26 ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 22/23] [RFC] y2038: itimer: use ktime_t internally Arnd Bergmann
2019-11-13 22:30 ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 23/23] y2038: allow disabling time32 system calls Arnd Bergmann
2019-11-11 12:31 ` Christian Brauner
2019-11-13 21:40 ` [PATCH 00/23] y2038 cleanups Arnd Bergmann
2019-11-13 21:40 ` Arnd Bergmann
2019-11-13 21:40 ` Arnd Bergmann
2019-11-13 21:40 ` Arnd Bergmann
2019-11-13 21:40 ` Arnd Bergmann
2019-11-13 21:40 ` Arnd Bergmann
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