Subject: Re: linux-next: manual merge of the ftrace tree with the tip tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 28 Nov 2019 11:47:04 +1100

Hi all,

On Thu, 21 Nov 2019 15:10:40 +1100 Stephen Rothwell <[email-masked]> wrote:
>
> Today's linux-next merge of the ftrace tree got a conflict in:
> 
>   kernel/trace/trace_export.c
> 
> between commit:
> 
>   60fdad00827c ("ftrace: Rework event_create_dir()")
> 
> from the tip tree and commit:
> 
>   6dff4d7dd3e0 ("tracing: Make internal ftrace events static")
> 
> from the ftrace tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc kernel/trace/trace_export.c
> index 6d64c1c19fd5,2e6d2e9741cc..000000000000
> --- a/kernel/trace/trace_export.c
> +++ b/kernel/trace/trace_export.c
> @@@ -142,10 -168,12 +142,10 @@@ static struct trace_event_fields ftrace
>   #define F_printk(fmt, args...) __stringify(fmt) ", "  __stringify(args)
>   
>   #undef FTRACE_ENTRY_REG
>  -#define FTRACE_ENTRY_REG(call, struct_name, etype, tstruct, print, filter,\
>  -			 regfn)						\
>  -									\
>  +#define FTRACE_ENTRY_REG(call, struct_name, etype, tstruct, print, regfn) \
> - struct trace_event_class __refdata event_class_ftrace_##call = {	\
> + static struct trace_event_class __refdata event_class_ftrace_##call = {	\
>   	.system			= __stringify(TRACE_SYSTEM),		\
>  -	.define_fields		= ftrace_define_fields_##call,		\
>  +	.fields_array		= ftrace_event_fields_##call,		\
>   	.fields			= LIST_HEAD_INIT(event_class_ftrace_##call.fields),\
>   	.reg			= regfn,				\
>   };									\

This is now a conflict between the tip tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell