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From: Nathan Lynch <nathanl@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: tyreld@linux.ibm.com, ajd@linux.ibm.com, mmc@linux.vnet.ibm.com,
	cforno12@linux.vnet.ibm.com, drt@linux.vnet.ibm.com,
	brking@linux.ibm.com
Subject: [PATCH v2 19/28] powerpc/pseries/hibernation: remove pseries_suspend_cpu()
Date: Mon,  7 Dec 2020 15:51:51 -0600	[thread overview]
Message-ID: <20201207215200.1785968-20-nathanl@linux.ibm.com> (raw)
In-Reply-To: <20201207215200.1785968-1-nathanl@linux.ibm.com>

Since commit 48f6e7f6d948 ("powerpc/pseries: remove cede offline state
for CPUs"), ppc_md.suspend_disable_cpu() is no longer used and all
CPUs (save one) are placed into true offline state as opposed to
H_JOIN. So pseries_suspend_cpu() is effectively unused; remove it.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
---
 arch/powerpc/platforms/pseries/suspend.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 232621f33510..3315d698d5ab 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -48,20 +48,6 @@ static int pseries_suspend_begin(u64 stream_id)
 		       vasi_state);
 		return -EIO;
 	}
-
-	return 0;
-}
-
-/**
- * pseries_suspend_cpu - Suspend a single CPU
- *
- * Makes the H_JOIN call to suspend the CPU
- *
- **/
-static int pseries_suspend_cpu(void)
-{
-	if (atomic_read(&suspending))
-		return rtas_suspend_cpu(&suspend_data);
 	return 0;
 }
 
@@ -235,7 +221,6 @@ static int __init pseries_suspend_init(void)
 	if ((rc = pseries_suspend_sysfs_register(&suspend_dev)))
 		return rc;
 
-	ppc_md.suspend_disable_cpu = pseries_suspend_cpu;
 	ppc_md.suspend_enable_irqs = pseries_suspend_enable_irqs;
 	suspend_set_ops(&pseries_suspend_ops);
 	return 0;
-- 
2.28.0


  parent reply	other threads:[~2020-12-07 22:34 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-07 21:51 [PATCH v2 00/28] partition suspend updates Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 01/28] powerpc/rtas: prevent suspend-related sys_rtas use on LE Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 02/28] powerpc/rtas: complete ibm,suspend-me status codes Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 03/28] powerpc/rtas: rtas_ibm_suspend_me -> rtas_ibm_suspend_me_unsafe Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 04/28] powerpc/rtas: add rtas_ibm_suspend_me() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 05/28] powerpc/rtas: add rtas_activate_firmware() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 06/28] powerpc/hvcall: add token and codes for H_VASI_SIGNAL Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 07/28] powerpc/pseries/mobility: don't error on absence of ibm, update-nodes Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 08/28] powerpc/pseries/mobility: add missing break to default case Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 09/28] powerpc/pseries/mobility: error message improvements Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 10/28] powerpc/pseries/mobility: use rtas_activate_firmware() on resume Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 11/28] powerpc/pseries/mobility: extract VASI session polling logic Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 12/28] powerpc/pseries/mobility: use stop_machine for join/suspend Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 13/28] powerpc/pseries/mobility: signal suspend cancellation to platform Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 14/28] powerpc/pseries/mobility: retry partition suspend after error Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 15/28] powerpc/rtas: dispatch partition migration requests to pseries Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 16/28] powerpc/rtas: remove rtas_ibm_suspend_me_unsafe() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 17/28] powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 18/28] powerpc/pseries/hibernation: pass stream id via function arguments Nathan Lynch
2020-12-07 21:51 ` Nathan Lynch [this message]
2020-12-07 21:51 ` [PATCH v2 20/28] powerpc/machdep: remove suspend_disable_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 21/28] powerpc/rtas: remove rtas_suspend_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 22/28] powerpc/pseries/hibernation: switch to rtas_ibm_suspend_me() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 23/28] powerpc/rtas: remove unused rtas_suspend_last_cpu() Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 24/28] powerpc/pseries/hibernation: remove redundant cacheinfo update Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 25/28] powerpc/pseries/hibernation: perform post-suspend fixups later Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 26/28] powerpc/pseries/hibernation: remove prepare_late() callback Nathan Lynch
2020-12-07 21:51 ` [PATCH v2 27/28] powerpc/rtas: remove unused rtas_suspend_me_data Nathan Lynch
2020-12-07 21:52 ` [PATCH v2 28/28] powerpc/pseries/mobility: refactor node lookup during DT update Nathan Lynch
2020-12-15 10:49 ` [PATCH v2 00/28] partition suspend updates Michael Ellerman

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