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Commit c0cd93aa authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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ring-buffer: Remove check of trace_seq_{puts,printf}() return values 



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: default avatarPetr Mladek <pmladek@suse.cz>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent f4a1d08c

kernel/trace/ring_buffer.c

+36 −39
Original line number Diff line number Diff line
@@ -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;



	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",

	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);

	ret = trace_seq_printf(s, "\ttime_extend : type == %d\n",

	trace_seq_printf(s, "\ttime_extend : type == %d\n",

			 RINGBUF_TYPE_TIME_EXTEND);

	ret = trace_seq_printf(s, "\tdata max type_len  == %d\n",

	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"

	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"

	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"

	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"

	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 {