linux-kernel - [RFC PATCH 4/9] stacktrace: export-GPL stack_trace_save

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Date:   Thu,  9 Apr 2020 15:35:38 -0400
From:   Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will@...nel.org>, akpm@...ux-foundation.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "K . Prasad" <prasad@...ux.vnet.ibm.com>,
        Masami Hiramatsu <mhiramat@...nel.org>, rostedt@...dmis.org,
        Alexei Starovoitov <ast@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: [RFC PATCH 4/9] stacktrace: export-GPL stack_trace_save_user

The stack_trace_save symbol is already exported GPL. Add a GPL export
for the stack_trace_save_user symbol as well.

This is useful for tracers implemented as kernel modules.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
---
 kernel/stacktrace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 2af66e449aa6..c8c48444bd39 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -240,6 +240,7 @@ unsigned int stack_trace_save_user(unsigned long *store, unsigned int size)
 
 	return c.len;
 }
+EXPORT_SYMBOL_GPL(stack_trace_save_user);
 #endif
 
 #else /* CONFIG_ARCH_STACKWALK */
-- 
2.17.1