Re: [PATCH] binder: use standard functions to allocate fds

From: kbuild test robot
Date: Tue Aug 28 2018 - 15:42:56 EST


Hi Todd,

I love your patch! Perhaps something to improve:

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.19-rc1 next-20180828]
[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/Todd-Kjos/binder-use-standard-functions-to-allocate-fds/20180829-022204
config: i386-randconfig-x016-201834 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

In file included from include/trace/define_trace.h:96:0,
from drivers/android/binder_trace.h:408,
from drivers/android/binder.c:5781:
drivers/android/./binder_trace.h: In function 'trace_raw_output_binder_transaction_fd_send':
>> drivers/android/./binder_trace.h:240:12: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
TP_printk("transaction=%d src_fd=%d offset=%ld",
^
include/trace/trace_events.h:360:22: note: in definition of macro 'DECLARE_EVENT_CLASS'
trace_seq_printf(s, print); \
^~~~~
include/trace/trace_events.h:79:9: note: in expansion of macro 'PARAMS'
PARAMS(print)); \
^~~~~~
>> drivers/android/./binder_trace.h:226:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(binder_transaction_fd_send,
^~~~~~~~~~~
>> drivers/android/./binder_trace.h:240:2: note: in expansion of macro 'TP_printk'
TP_printk("transaction=%d src_fd=%d offset=%ld",
^~~~~~~~~
In file included from include/trace/trace_events.h:394:0,
from include/trace/define_trace.h:96,
from drivers/android/binder_trace.h:408,
from drivers/android/binder.c:5781:
drivers/android/./binder_trace.h:240:47: note: format string is defined here
TP_printk("transaction=%d src_fd=%d offset=%ld",
~~^
%d
In file included from include/trace/define_trace.h:96:0,
from drivers/android/binder_trace.h:408,
from drivers/android/binder.c:5781:
drivers/android/./binder_trace.h: In function 'trace_raw_output_binder_transaction_fd_recv':
drivers/android/./binder_trace.h:258:12: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
TP_printk("transaction=%d dest_fd=%d offset=%ld",
^
include/trace/trace_events.h:360:22: note: in definition of macro 'DECLARE_EVENT_CLASS'
trace_seq_printf(s, print); \
^~~~~
include/trace/trace_events.h:79:9: note: in expansion of macro 'PARAMS'
PARAMS(print)); \
^~~~~~
drivers/android/./binder_trace.h:244:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(binder_transaction_fd_recv,
^~~~~~~~~~~
drivers/android/./binder_trace.h:258:2: note: in expansion of macro 'TP_printk'
TP_printk("transaction=%d dest_fd=%d offset=%ld",
^~~~~~~~~
In file included from include/trace/trace_events.h:394:0,
from include/trace/define_trace.h:96,
from drivers/android/binder_trace.h:408,
from drivers/android/binder.c:5781:
drivers/android/./binder_trace.h:258:48: note: format string is defined here
TP_printk("transaction=%d dest_fd=%d offset=%ld",
~~^
%d

vim +240 drivers/android/./binder_trace.h

225
> 226 TRACE_EVENT(binder_transaction_fd_send,
227 TP_PROTO(struct binder_transaction *t, int fd, size_t offset),
228 TP_ARGS(t, fd, offset),
229
230 TP_STRUCT__entry(
231 __field(int, debug_id)
232 __field(int, fd)
233 __field(size_t, offset)
234 ),
235 TP_fast_assign(
236 __entry->debug_id = t->debug_id;
237 __entry->fd = fd;
238 __entry->offset = offset;
239 ),
> 240 TP_printk("transaction=%d src_fd=%d offset=%ld",
241 __entry->debug_id, __entry->fd, __entry->offset)
242 );
243

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