linux-kernel - [PATCH v7 4/5] crash: export paddr_vmcoreinfo

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Message-Id: <20171120095519.15214-5-marcandre.lureau@redhat.com>
Date:   Mon, 20 Nov 2017 10:55:18 +0100
From:   Marc-André Lureau <marcandre.lureau@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     qemu-devel@...gnu.org, somlo@....edu, xiaolong.ye@...el.com,
        mst@...hat.com,
        Marc-André Lureau <marcandre.lureau@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Baoquan He <bhe@...hat.com>, Dave Young <dyoung@...hat.com>,
        Hari Bathini <hbathini@...ux.vnet.ibm.com>,
        Tony Luck <tony.luck@...el.com>,
        Vivek Goyal <vgoyal@...hat.com>
Subject: [PATCH v7 4/5] crash: export paddr_vmcoreinfo_note()

The following patch is going to use the symbol from the fw_cfg module,
to call the function and write the note location details in the
vmcoreinfo entry, so qemu can produce dumps with the vmcoreinfo note.

CC: Andrew Morton <akpm@...ux-foundation.org>
CC: Baoquan He <bhe@...hat.com>
CC: Dave Young <dyoung@...hat.com>
CC: Dave Young <dyoung@...hat.com>
CC: Hari Bathini <hbathini@...ux.vnet.ibm.com>
CC: Tony Luck <tony.luck@...el.com>
CC: Vivek Goyal <vgoyal@...hat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@...hat.com>
Acked-by: Gabriel Somlo <somlo@....edu>
---
 kernel/crash_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index b3663896278e..2394f0501c65 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -376,6 +376,7 @@ phys_addr_t __weak paddr_vmcoreinfo_note(void)
 {
 	return __pa(vmcoreinfo_note);
 }
+EXPORT_SYMBOL(paddr_vmcoreinfo_note);
 
 static int __init crash_save_vmcoreinfo_init(void)
 {
-- 
2.15.0.277.ga3d2ad2c43