From: Anton Blanchard <anton@samba.org>
To: benh@kernel.crashing.org, msm@freescale.com,
john.a.livingston@boeing.com, Kyle.D.Moffett@boeing.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: powerpc/kexec: Restore ppc_md.machine_kexec
Date: Thu, 24 Feb 2011 09:46:16 +1100 [thread overview]
Message-ID: <20110224094616.3e498154@kryten> (raw)
Kyle Moffett points out that mpc85xx has started using the
ppc_md.machine_kexec hook. As such, revert patch c94868788cf2
(powerpc/kexec: Remove ppc_md.machine_kexec).
Signed-off-by: Anton Blanchard <anton@samba.org>
---
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 991d599..fe56a23 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -240,6 +240,12 @@ struct machdep_calls {
* claims to support kexec.
*/
int (*machine_kexec_prepare)(struct kimage *image);
+
+ /* Called to perform the _real_ kexec.
+ * Do NOT allocate memory or fail here. We are past the point of
+ * no return.
+ */
+ void (*machine_kexec)(struct kimage *image);
#endif /* CONFIG_KEXEC */
#ifdef CONFIG_SUSPEND
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 49a170a..a5f8672 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -87,7 +87,10 @@ void machine_kexec(struct kimage *image)
save_ftrace_enabled = __ftrace_enabled_save();
- default_machine_kexec(image);
+ if (ppc_md.machine_kexec)
+ ppc_md.machine_kexec(image);
+ else
+ default_machine_kexec(image);
__ftrace_enabled_restore(save_ftrace_enabled);
reply other threads:[~2011-02-23 22:46 UTC|newest]
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