linux-kernel - [PATCH v2 3/5] mips: remove syscall table entries

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Date:   Thu, 15 Nov 2018 11:44:19 +0530
From:   Firoz Khan <firoz.khan@...aro.org>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>, linux-mips@...ux-mips.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kate Stewart <kstewart@...uxfoundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>, y2038@...ts.linaro.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        deepa.kernel@...il.com, marcin.juszkiewicz@...aro.org,
        firoz.khan@...aro.org
Subject: [PATCH v2 3/5] mips: remove syscall table entries

The config flag - CONFIG_MIPS_MT_FPAFF uses to check whether which
syscall entries need to be used in scall32-o32.S file.

One of the patch in this patch series will generate syscall table
file. But CONFIG_MIPS_MT_FPAFF flag will add more complexity in the
script to generate the syscall table file.

In order to come up with a common implementation across all archit-
ecture, we need to remove mipsmt_sys_sched_setaffinity and mipsmt-
_sys_sched_getaffinity from the table and define it in other way.

Signed-off-by: Firoz Khan <firoz.khan@...aro.org>
---
 arch/mips/kernel/scall32-o32.S | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index a9b895f..4eee437 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -208,6 +208,18 @@ einval: li	v0, -ENOSYS
 	jr	ra
 	END(sys_syscall)
 
+#ifdef CONFIG_MIPS_MT_FPAFF
+	/*
+	 * For FPU affinity scheduling on MIPS MT processors, we need to
+	 * intercept sys_sched_xxxaffinity() calls until we get a proper hook
+	 * in kernel/sched/core.c.  Considered only temporary we only support
+	 * these hooks for the 32-bit kernel - there is no MIPS64 MT processor
+	 * atm.
+	 */
+#define mipsmt_sys_sched_setaffinity sys_sched_setaffinity
+#define mipsmt_sys_sched_getaffinity sys_sched_getaffinity
+#endif /* CONFIG_MIPS_MT_FPAFF */
+
 	.align	2
 	.type	sys_call_table, @object
 EXPORT(sys_call_table)
@@ -450,20 +462,8 @@ EXPORT(sys_call_table)
 	PTR	sys_tkill
 	PTR	sys_sendfile64
 	PTR	sys_futex
-#ifdef CONFIG_MIPS_MT_FPAFF
-	/*
-	 * For FPU affinity scheduling on MIPS MT processors, we need to
-	 * intercept sys_sched_xxxaffinity() calls until we get a proper hook
-	 * in kernel/sched/core.c.  Considered only temporary we only support
-	 * these hooks for the 32-bit kernel - there is no MIPS64 MT processor
-	 * atm.
-	 */
-	PTR	mipsmt_sys_sched_setaffinity
-	PTR	mipsmt_sys_sched_getaffinity
-#else
 	PTR	sys_sched_setaffinity
 	PTR	sys_sched_getaffinity		/* 4240 */
-#endif /* CONFIG_MIPS_MT_FPAFF */
 	PTR	sys_io_setup
 	PTR	sys_io_destroy
 	PTR	sys_io_getevents
-- 
1.9.1