From: Nathan Chancellor <nathan@kernel.org>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Nick Desaulniers <ndesaulniers@google.com>,
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
linux-pm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
Nathan Chancellor <nathan@kernel.org>
Subject: [PATCH] cpuidle: pseries: Mark pseries_idle_proble() as __init
Date: Tue, 3 Aug 2021 14:15:47 -0700 [thread overview]
Message-ID: <20210803211547.1093820-1-nathan@kernel.org> (raw)
After commit 7cbd631d4dec ("cpuidle: pseries: Fixup CEDE0 latency only
for POWER10 onwards"), pseries_idle_probe() is no longer inlined when
compiling with clang, which causes a modpost warning:
WARNING: modpost: vmlinux.o(.text+0xc86a54): Section mismatch in
reference from the function pseries_idle_probe() to the function
.init.text:fixup_cede0_latency()
The function pseries_idle_probe() references
the function __init fixup_cede0_latency().
This is often because pseries_idle_probe lacks a __init
annotation or the annotation of fixup_cede0_latency is wrong.
pseries_idle_probe() is a non-init function, which calls
fixup_cede0_latency(), which is an init function, explaining the
mismatch. pseries_idle_probe() is only called from
pseries_processor_idle_init(), which is an init function, so mark
pseries_idle_probe() as __init so there is no more warning.
Fixes: 054e44ba99ae ("cpuidle: pseries: Add function to parse extended CEDE records")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
drivers/cpuidle/cpuidle-pseries.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index bba449b77641..7e7ab5597d7a 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -403,7 +403,7 @@ static void __init fixup_cede0_latency(void)
* pseries_idle_probe()
* Choose state table for shared versus dedicated partition
*/
-static int pseries_idle_probe(void)
+static int __init pseries_idle_probe(void)
{
if (cpuidle_disable != IDLE_NO_OVERRIDE)
base-commit: a6cae77f1bc89368a4e2822afcddc45c3062d499
--
2.33.0.rc0
next reply other threads:[~2021-08-03 21:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-03 21:15 Nathan Chancellor [this message]
2021-08-04 0:54 ` [PATCH] cpuidle: pseries: Mark pseries_idle_proble() as __init Michael Ellerman
2021-08-18 13:38 ` Michael Ellerman
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