Re: [PATCH] kernel: trace: pass export pointer as argument to ->write()

From: kbuild test robot
Date: Thu May 18 2017 - 07:12:16 EST


Hi Felipe,

[auto build test ERROR on tip/perf/core]
[also build test ERROR on v4.12-rc1 next-20170518]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Felipe-Balbi/kernel-trace-pass-export-pointer-as-argument-to-write/20170518-135452
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/hwtracing/stm/ftrace.c: In function 'stm_ftrace_write':
>> drivers/hwtracing/stm/ftrace.c:49:19: error: incompatible type for argument 1 of 'stm_source_write'
stm_source_write(stm->data, STM_FTRACE_CHAN, buf, len);
^~~
In file included from drivers/hwtracing/stm/ftrace.c:18:0:
include/linux/stm.h:136:13: note: expected 'struct stm_source_data *' but argument is of type 'struct stm_source_data'
int notrace stm_source_write(struct stm_source_data *data, unsigned int chan,
^~~~~~~~~~~~~~~~

vim +/stm_source_write +49 drivers/hwtracing/stm/ftrace.c

43 */
44 static void notrace
45 stm_ftrace_write(struct trace_export *export, const void *buf, unsigned int len)
46 {
47 struct stm_ftrace *stm = container_of(export, struct stm_ftrace, ftrace);
48
> 49 stm_source_write(stm->data, STM_FTRACE_CHAN, buf, len);
50 }
51
52 static int stm_ftrace_link(struct stm_source_data *data)

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