Re: [PATCH 10/18] arch: powerpc: Stop building and using oprofile

From: Viresh Kumar
Date: Thu Jan 14 2021 - 23:14:27 EST


On 14-01-21, 17:05, Viresh Kumar wrote:
> The "oprofile" user-space tools don't use the kernel OPROFILE support
> any more, and haven't in a long time. User-space has been converted to
> the perf interfaces.
>
> This commits stops building oprofile for powerpc and removes any
> reference to it from directories in arch/powerpc/ apart from
> arch/powerpc/oprofile, which will be removed in the next commit (this is
> broken into two commits as the size of the commit became very big, ~5k
> lines).
>
> Note that the member "oprofile_cpu_type" in "struct cpu_spec" isn't
> removed as it was also used by other parts of the code.
>
> Suggested-by: Christoph Hellwig <hch@xxxxxxxxxxxxx>
> Suggested-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

+ this to fix a warning:

diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index 466006918003..ce52b87496d2 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -353,7 +353,6 @@ static int spu_process_callback(struct spu_context *ctx)
long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
{
int ret;
- struct spu *spu;
u32 status;

if (mutex_lock_interruptible(&ctx->run_mutex))
@@ -386,7 +385,6 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
mutex_lock(&ctx->state_mutex);
break;
}
- spu = ctx->spu;
if (unlikely(test_and_clear_bit(SPU_SCHED_NOTIFY_ACTIVE,
&ctx->sched_flags))) {
if (!(status & SPU_STATUS_STOPPED_BY_STOP))

--
viresh