linux-kernel - [PATCH v2 1/3] crash: add VMCOREINFO macro for anonymous structs

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Message-Id: <20200501094010.17694-2-john.ogness@linutronix.de>
Date:   Fri,  1 May 2020 11:46:08 +0206
From:   John Ogness <john.ogness@...utronix.de>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrea Parri <parri.andrea@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        kexec@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] crash: add VMCOREINFO macro for anonymous structs

Some structs are not named and are only available via their typedef.
Add a VMCOREINFO macro to export field offsets for such structs.

Signed-off-by: John Ogness <john.ogness@...utronix.de>
---
 include/linux/crash_core.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index 525510a9f965..43b51c9df571 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -53,6 +53,9 @@ phys_addr_t paddr_vmcoreinfo_note(void);
 #define VMCOREINFO_OFFSET(name, field) \
 	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
 			      (unsigned long)offsetof(struct name, field))
+#define VMCOREINFO_TYPE_OFFSET(name, field) \
+	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
+			      (unsigned long)offsetof(name, field))
 #define VMCOREINFO_LENGTH(name, value) \
 	vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value)
 #define VMCOREINFO_NUMBER(name) \
-- 
2.20.1