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Date: Fri, 15 Jan 2021 09:43:42 +0530
From: Viresh Kumar <viresh.kumar@linaro.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
 Robert Richter <rric@kernel.org>, Michael Ellerman <mpe@ellerman.id.au>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Paul Mackerras <paulus@samba.org>, Arnd Bergmann <arnd@arndb.de>,
 Jeremy Kerr <jk@ozlabs.org>
Subject: Re: [PATCH 10/18] arch: powerpc: Stop building and using oprofile
Message-ID: <20210115041342.fqmdyply3ivygxgr@vireshk-i7>
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Cc: Arnd Bergmann <arnd@kernel.org>,
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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@infradead.org>
> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

+ 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