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ring-buffer: Remove check of trace_seq_{puts,printf}() return values

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Remove checking the return value of all trace_seq_puts(). It was wrong
anyway as only the last return value mattered. But as the trace_seq_puts()
is going to be a void function in the future, we should not be checking
the return value of it anyway.

Just return !trace_seq_has_overflowed() instead.

Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2014-11-12 11:49:00 -05:00 committed by Steven Rostedt
parent f4a1d08ce6
commit c0cd93aa16
1 changed files with 32 additions and 35 deletions
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67
kernel/trace/ring_buffer.c
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@ -34,21 +34,19 @@ static void update_pages_handler(struct work_struct *work);
*/
int ring_buffer_print_entry_header(struct trace_seq *s)
{
int ret;
trace_seq_puts(s, "# compressed entry header\n");
trace_seq_puts(s, "\ttype_len : 5 bits\n");
trace_seq_puts(s, "\ttime_delta : 27 bits\n");
trace_seq_puts(s, "\tarray : 32 bits\n");
trace_seq_putc(s, '\n');
trace_seq_printf(s, "\tpadding : type == %d\n",
RINGBUF_TYPE_PADDING);
trace_seq_printf(s, "\ttime_extend : type == %d\n",
RINGBUF_TYPE_TIME_EXTEND);
trace_seq_printf(s, "\tdata max type_len == %d\n",
RINGBUF_TYPE_DATA_TYPE_LEN_MAX);
ret = trace_seq_puts(s, "# compressed entry header\n");
ret = trace_seq_puts(s, "\ttype_len : 5 bits\n");
ret = trace_seq_puts(s, "\ttime_delta : 27 bits\n");
ret = trace_seq_puts(s, "\tarray : 32 bits\n");
ret = trace_seq_putc(s, '\n');
ret = trace_seq_printf(s, "\tpadding : type == %d\n",
RINGBUF_TYPE_PADDING);
ret = trace_seq_printf(s, "\ttime_extend : type == %d\n",
RINGBUF_TYPE_TIME_EXTEND);
ret = trace_seq_printf(s, "\tdata max type_len == %d\n",
RINGBUF_TYPE_DATA_TYPE_LEN_MAX);
return ret;
return !trace_seq_has_overflowed(s);
}
/*
@ -419,32 +417,31 @@ static inline int test_time_stamp(u64 delta)
int ring_buffer_print_page_header(struct trace_seq *s)
{
struct buffer_data_page field;
int ret;
ret = trace_seq_printf(s, "\tfield: u64 timestamp;\t"
"offset:0;\tsize:%u;\tsigned:%u;\n",
(unsigned int)sizeof(field.time_stamp),
(unsigned int)is_signed_type(u64));
trace_seq_printf(s, "\tfield: u64 timestamp;\t"
"offset:0;\tsize:%u;\tsigned:%u;\n",
(unsigned int)sizeof(field.time_stamp),
(unsigned int)is_signed_type(u64));
ret = trace_seq_printf(s, "\tfield: local_t commit;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), commit),
(unsigned int)sizeof(field.commit),
(unsigned int)is_signed_type(long));
trace_seq_printf(s, "\tfield: local_t commit;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), commit),
(unsigned int)sizeof(field.commit),
(unsigned int)is_signed_type(long));
ret = trace_seq_printf(s, "\tfield: int overwrite;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), commit),
1,
(unsigned int)is_signed_type(long));
trace_seq_printf(s, "\tfield: int overwrite;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), commit),
1,
(unsigned int)is_signed_type(long));
ret = trace_seq_printf(s, "\tfield: char data;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), data),
(unsigned int)BUF_PAGE_SIZE,
(unsigned int)is_signed_type(char));
trace_seq_printf(s, "\tfield: char data;\t"
"offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), data),
(unsigned int)BUF_PAGE_SIZE,
(unsigned int)is_signed_type(char));
return ret;
return !trace_seq_has_overflowed(s);
}
struct rb_irq_work {