[PATCH] powerpc/spufs: Remove MAX_USER_PRIO define

[PATCH] powerpc/spufs: Remove MAX_USER_PRIO define

[Jeremy Kerr]

Current ppc64_defconfig fails with:

 arch/powerpc/platforms/cell/spufs/sched.c:86:0: error: "MAX_USER_PRIO" redefined [-Werror]
 cc1: all warnings being treated as errors

6b6350f1 introduced a generic MAX_USER_PRIO macro to sched/prio.h, which
is causing the conflit. Use that one instead of our own.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

---
Ingo: 6b6350f1 is currently in tip; this fixes a build breakage for spufs

---
 arch/powerpc/platforms/cell/spufs/sched.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 4931838..4a0a64f 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -83,7 +83,6 @@ static struct timer_list spuloadavg_timer;
 #define MIN_SPU_TIMESLICE	max(5 * HZ / (1000 * SPUSCHED_TICK), 1)
 #define DEF_SPU_TIMESLICE	(100 * HZ / (1000 * SPUSCHED_TICK))
 
-#define MAX_USER_PRIO		(MAX_PRIO - MAX_RT_PRIO)
 #define SCALE_PRIO(x, prio) \
 	max(x * (MAX_PRIO - prio) / (MAX_USER_PRIO / 2), MIN_SPU_TIMESLICE)
 

Re: [PATCH] powerpc/spufs: Remove MAX_USER_PRIO define

[Kamalesh Babulal]

* Jeremy Kerr <jk@ozlabs.org> [2014-02-11 14:05:17]:

> Current ppc64_defconfig fails with:
> 
>  arch/powerpc/platforms/cell/spufs/sched.c:86:0: error: "MAX_USER_PRIO" redefined [-Werror]
>  cc1: all warnings being treated as errors
> 
> 6b6350f1 introduced a generic MAX_USER_PRIO macro to sched/prio.h, which
> is causing the conflit. Use that one instead of our own.

you can also use DEFAULT_PRIO from sched/prio.h instead of NORMAL_PRIO.

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 49318385d4fa..014979db2018 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -64,11 +64,6 @@ static struct timer_list spusched_timer;
 static struct timer_list spuloadavg_timer;
 
 /*
- * Priority of a normal, non-rt, non-niced'd process (aka nice level 0).
- */
-#define NORMAL_PRIO		120
-
-/*
  * Frequency of the spu scheduler tick.  By default we do one SPU scheduler
  * tick for every 10 CPU scheduler ticks.
  */
@@ -97,7 +92,7 @@ static struct timer_list spuloadavg_timer;
  */
 void spu_set_timeslice(struct spu_context *ctx)
 {
-	if (ctx->prio < NORMAL_PRIO)
+	if (ctx->prio < DEFAULT_PRIO)
 		ctx->time_slice = SCALE_PRIO(DEF_SPU_TIMESLICE * 4, ctx->prio);
 	else
 		ctx->time_slice = SCALE_PRIO(DEF_SPU_TIMESLICE, ctx->prio);

Thanks,
Kamalesh.

Re: [PATCH] powerpc/spufs: Remove MAX_USER_PRIO define

[Kamalesh Babulal]

* Jeremy Kerr <jk@ozlabs.org> [2014-02-11 14:05:17]:

> Current ppc64_defconfig fails with:
> 
>  arch/powerpc/platforms/cell/spufs/sched.c:86:0: error: "MAX_USER_PRIO" redefined [-Werror]
>  cc1: all warnings being treated as errors
> 
> 6b6350f1 introduced a generic MAX_USER_PRIO macro to sched/prio.h, which
> is causing the conflit. Use that one instead of our own.

you can also use DEFAULT_PRIO from sched/prio.h instead of NORMAL_PRIO.

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 49318385d4fa..014979db2018 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -64,11 +64,6 @@ static struct timer_list spusched_timer;
 static struct timer_list spuloadavg_timer;
 
 /*
- * Priority of a normal, non-rt, non-niced'd process (aka nice level 0).
- */
-#define NORMAL_PRIO		120
-
-/*
  * Frequency of the spu scheduler tick.  By default we do one SPU scheduler
  * tick for every 10 CPU scheduler ticks.
  */
@@ -97,7 +92,7 @@ static struct timer_list spuloadavg_timer;
  */
 void spu_set_timeslice(struct spu_context *ctx)
 {
-	if (ctx->prio < NORMAL_PRIO)
+	if (ctx->prio < DEFAULT_PRIO)
 		ctx->time_slice = SCALE_PRIO(DEF_SPU_TIMESLICE * 4, ctx->prio);
 	else
 		ctx->time_slice = SCALE_PRIO(DEF_SPU_TIMESLICE, ctx->prio);

Thanks,
Kamalesh.

[tip:sched/core] powerpc/spufs: Remove MAX_USER_PRIO define

[tip-bot for Jeremy Kerr]

Commit-ID:  74b8af7837fa55c020e2ad1b34a6b10dfe25a9b1
Gitweb:     http://git.kernel.org/tip/74b8af7837fa55c020e2ad1b34a6b10dfe25a9b1
Author:     Jeremy Kerr <jk@ozlabs.org>
AuthorDate: Tue, 11 Feb 2014 14:05:17 +0800
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 11 Feb 2014 09:58:33 +0100

powerpc/spufs: Remove MAX_USER_PRIO define

Current ppc64_defconfig fails with:

 arch/powerpc/platforms/cell/spufs/sched.c:86:0: error: "MAX_USER_PRIO" redefined [-Werror]
 cc1: all warnings being treated as errors

Commit 6b6350f155af ("sched: Expose some macros related to priority")
introduced a generic MAX_USER_PRIO macro to sched/prio.h, which is
causing the conflit. Use that one instead of our own.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Cc: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1392098717.689604.970589769393.1.gpush@pablo
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/powerpc/platforms/cell/spufs/sched.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 4931838..4a0a64f 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -83,7 +83,6 @@ static struct timer_list spuloadavg_timer;
 #define MIN_SPU_TIMESLICE	max(5 * HZ / (1000 * SPUSCHED_TICK), 1)
 #define DEF_SPU_TIMESLICE	(100 * HZ / (1000 * SPUSCHED_TICK))
 
-#define MAX_USER_PRIO		(MAX_PRIO - MAX_RT_PRIO)
 #define SCALE_PRIO(x, prio) \
 	max(x * (MAX_PRIO - prio) / (MAX_USER_PRIO / 2), MIN_SPU_TIMESLICE)