tracing: Use trace_seq_puts()/trace_seq_putc() where possible

For string without format specifiers, use trace_seq_puts()
or trace_seq_putc().

Link: http://lkml.kernel.org/r/51E3B3AC.1000605@huawei.com
Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
[ fixed a trace_seq_putc(s, " ") to trace_seq_putc(s, ' ') ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index e444ff88f0a425a00a4921291b46678b6a7efe21..eef2e566b2e7915fd02ae54093a0a9be1c495431 100644 (file)
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -36,11 +36,11 @@ int ring_buffer_print_entry_header(struct trace_seq *s)
 {
        int ret;
 
-       ret = trace_seq_printf(s, "# compressed entry header\n");
-       ret = trace_seq_printf(s, "\ttype_len    :    5 bits\n");
-       ret = trace_seq_printf(s, "\ttime_delta  :   27 bits\n");
-       ret = trace_seq_printf(s, "\tarray       :   32 bits\n");
-       ret = trace_seq_printf(s, "\n");
+       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",

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 0d883dc057d68fe92bc36f0510298cff725256bb..0c7b75a8acc8f9ccad53d75bc6a3fe0da425ae9f 100644 (file)
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -646,7 +646,7 @@ void print_event_filter(struct ftrace_event_call *call, struct trace_seq *s)
        if (filter && filter->filter_string)
                trace_seq_printf(s, "%s\n", filter->filter_string);
        else
-               trace_seq_printf(s, "none\n");
+               trace_seq_puts(s, "none\n");
        mutex_unlock(&event_mutex);
 }
 
@@ -660,7 +660,7 @@ void print_subsystem_event_filter(struct event_subsystem *system,
        if (filter && filter->filter_string)
                trace_seq_printf(s, "%s\n", filter->filter_string);
        else
-               trace_seq_printf(s, DEFAULT_SYS_FILTER_MESSAGE "\n");
+               trace_seq_puts(s, DEFAULT_SYS_FILTER_MESSAGE "\n");
        mutex_unlock(&event_mutex);
 }
 

diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 8388bc99f2eee165efacbef7ddde4f7f21d49ea3..d56ae9bae00bc6cb294d060887bed11e82b2fb9a 100644 (file)
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -446,7 +446,7 @@ print_graph_proc(struct trace_seq *s, pid_t pid)
 
        /* First spaces to align center */
        for (i = 0; i < spaces / 2; i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -457,7 +457,7 @@ print_graph_proc(struct trace_seq *s, pid_t pid)
 
        /* Last spaces to align center */
        for (i = 0; i < spaces - (spaces / 2); i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -503,7 +503,7 @@ verif_pid(struct trace_seq *s, pid_t pid, int cpu, struct fgraph_data *data)
  ------------------------------------------
 
  */
-       ret = trace_seq_printf(s,
+       ret = trace_seq_puts(s,
                " ------------------------------------------\n");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
@@ -516,7 +516,7 @@ verif_pid(struct trace_seq *s, pid_t pid, int cpu, struct fgraph_data *data)
        if (ret == TRACE_TYPE_PARTIAL_LINE)
                return TRACE_TYPE_PARTIAL_LINE;
 
-       ret = trace_seq_printf(s, " => ");
+       ret = trace_seq_puts(s, " => ");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 
@@ -524,7 +524,7 @@ verif_pid(struct trace_seq *s, pid_t pid, int cpu, struct fgraph_data *data)
        if (ret == TRACE_TYPE_PARTIAL_LINE)
                return TRACE_TYPE_PARTIAL_LINE;
 
-       ret = trace_seq_printf(s,
+       ret = trace_seq_puts(s,
                "\n ------------------------------------------\n\n");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
@@ -645,7 +645,7 @@ print_graph_irq(struct trace_iterator *iter, unsigned long addr,
                        ret = print_graph_proc(s, pid);
                        if (ret == TRACE_TYPE_PARTIAL_LINE)
                                return TRACE_TYPE_PARTIAL_LINE;
-                       ret = trace_seq_printf(s, " | ");
+                       ret = trace_seq_puts(s, " | ");
                        if (!ret)
                                return TRACE_TYPE_PARTIAL_LINE;
                }
@@ -657,9 +657,9 @@ print_graph_irq(struct trace_iterator *iter, unsigned long addr,
                return ret;
 
        if (type == TRACE_GRAPH_ENT)
-               ret = trace_seq_printf(s, "==========>");
+               ret = trace_seq_puts(s, "==========>");
        else
-               ret = trace_seq_printf(s, "<==========");
+               ret = trace_seq_puts(s, "<==========");
 
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
@@ -668,7 +668,7 @@ print_graph_irq(struct trace_iterator *iter, unsigned long addr,
        if (ret != TRACE_TYPE_HANDLED)
                return ret;
 
-       ret = trace_seq_printf(s, "\n");
+       ret = trace_seq_putc(s, '\n');
 
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
@@ -705,13 +705,13 @@ trace_print_graph_duration(unsigned long long duration, struct trace_seq *s)
                len += strlen(nsecs_str);
        }
 
-       ret = trace_seq_printf(s, " us ");
+       ret = trace_seq_puts(s, " us ");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 
        /* Print remaining spaces to fit the row's width */
        for (i = len; i < 7; i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -731,13 +731,13 @@ print_graph_duration(unsigned long long duration, struct trace_seq *s,
        /* No real adata, just filling the column with spaces */
        switch (duration) {
        case DURATION_FILL_FULL:
-               ret = trace_seq_printf(s, "              |  ");
+               ret = trace_seq_puts(s, "              |  ");
                return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
        case DURATION_FILL_START:
-               ret = trace_seq_printf(s, "  ");
+               ret = trace_seq_puts(s, "  ");
                return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
        case DURATION_FILL_END:
-               ret = trace_seq_printf(s, " |");
+               ret = trace_seq_puts(s, " |");
                return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
        }
 
@@ -745,10 +745,10 @@ print_graph_duration(unsigned long long duration, struct trace_seq *s,
        if (flags & TRACE_GRAPH_PRINT_OVERHEAD) {
                /* Duration exceeded 100 msecs */
                if (duration > 100000ULL)
-                       ret = trace_seq_printf(s, "! ");
+                       ret = trace_seq_puts(s, "! ");
                /* Duration exceeded 10 msecs */
                else if (duration > 10000ULL)
-                       ret = trace_seq_printf(s, "+ ");
+                       ret = trace_seq_puts(s, "+ ");
        }
 
        /*
@@ -757,7 +757,7 @@ print_graph_duration(unsigned long long duration, struct trace_seq *s,
         * to fill out the space.
         */
        if (ret == -1)
-               ret = trace_seq_printf(s, "  ");
+               ret = trace_seq_puts(s, "  ");
 
        /* Catching here any failure happenned above */
        if (!ret)
@@ -767,7 +767,7 @@ print_graph_duration(unsigned long long duration, struct trace_seq *s,
        if (ret != TRACE_TYPE_HANDLED)
                return ret;
 
-       ret = trace_seq_printf(s, "|  ");
+       ret = trace_seq_puts(s, "|  ");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 
@@ -817,7 +817,7 @@ print_graph_entry_leaf(struct trace_iterator *iter,
 
        /* Function */
        for (i = 0; i < call->depth * TRACE_GRAPH_INDENT; i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -858,7 +858,7 @@ print_graph_entry_nested(struct trace_iterator *iter,
 
        /* Function */
        for (i = 0; i < call->depth * TRACE_GRAPH_INDENT; i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -917,7 +917,7 @@ print_graph_prologue(struct trace_iterator *iter, struct trace_seq *s,
                if (ret == TRACE_TYPE_PARTIAL_LINE)
                        return TRACE_TYPE_PARTIAL_LINE;
 
-               ret = trace_seq_printf(s, " | ");
+               ret = trace_seq_puts(s, " | ");
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -1117,7 +1117,7 @@ print_graph_return(struct ftrace_graph_ret *trace, struct trace_seq *s,
 
        /* Closing brace */
        for (i = 0; i < trace->depth * TRACE_GRAPH_INDENT; i++) {
-               ret = trace_seq_printf(s, " ");
+               ret = trace_seq_putc(s, ' ');
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        }
@@ -1129,7 +1129,7 @@ print_graph_return(struct ftrace_graph_ret *trace, struct trace_seq *s,
         * belongs to, write out the function name.
         */
        if (func_match) {
-               ret = trace_seq_printf(s, "}\n");
+               ret = trace_seq_puts(s, "}\n");
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;
        } else {
@@ -1179,13 +1179,13 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent,
        /* Indentation */
        if (depth > 0)
                for (i = 0; i < (depth + 1) * TRACE_GRAPH_INDENT; i++) {
-                       ret = trace_seq_printf(s, " ");
+                       ret = trace_seq_putc(s, ' ');
                        if (!ret)
                                return TRACE_TYPE_PARTIAL_LINE;
                }
 
        /* The comment */
-       ret = trace_seq_printf(s, "/* ");
+       ret = trace_seq_puts(s, "/* ");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 
@@ -1216,7 +1216,7 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent,
                s->len--;
        }
 
-       ret = trace_seq_printf(s, " */\n");
+       ret = trace_seq_puts(s, " */\n");
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index a5e8f4878bfa3015ebb3372c8d09c2aa641b5bc1..b3dcfb2f0fef4e1bc9e9815021adc3e8dfe7d32a 100644 (file)
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -90,7 +90,7 @@ static int mmio_print_pcidev(struct trace_seq *s, const struct pci_dev *dev)
        if (drv)
                ret += trace_seq_printf(s, " %s\n", drv->name);
        else
-               ret += trace_seq_printf(s, " \n");
+               ret += trace_seq_puts(s, " \n");
        return ret;
 }
 
@@ -107,7 +107,7 @@ static void mmio_pipe_open(struct trace_iterator *iter)
        struct header_iter *hiter;
        struct trace_seq *s = &iter->seq;
 
-       trace_seq_printf(s, "VERSION 20070824\n");
+       trace_seq_puts(s, "VERSION 20070824\n");
 
        hiter = kzalloc(sizeof(*hiter), GFP_KERNEL);
        if (!hiter)
@@ -209,7 +209,7 @@ static enum print_line_t mmio_print_rw(struct trace_iterator *iter)
                        (rw->value >> 0) & 0xff, rw->pc, 0);
                break;
        default:
-               ret = trace_seq_printf(s, "rw what?\n");
+               ret = trace_seq_puts(s, "rw what?\n");
                break;
        }
        if (ret)
@@ -245,7 +245,7 @@ static enum print_line_t mmio_print_map(struct trace_iterator *iter)
                        secs, usec_rem, m->map_id, 0UL, 0);
                break;
        default:
-               ret = trace_seq_printf(s, "map what?\n");
+               ret = trace_seq_puts(s, "map what?\n");
                break;
        }
        if (ret)

diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index bb922d9ee51ba7b51171db284f6cd20576b012b2..34e7cbac0c9c17f8de2a0c8c137552deb9498b60 100644 (file)
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -78,7 +78,7 @@ enum print_line_t trace_print_printk_msg_only(struct trace_iterator *iter)
 
        trace_assign_type(field, entry);
 
-       ret = trace_seq_printf(s, "%s", field->buf);
+       ret = trace_seq_puts(s, field->buf);
        if (!ret)
                return TRACE_TYPE_PARTIAL_LINE;
 
@@ -558,14 +558,14 @@ seq_print_userip_objs(const struct userstack_entry *entry, struct trace_seq *s,
                        if (ret)
                                ret = trace_seq_puts(s, "??");
                        if (ret)
-                               ret = trace_seq_puts(s, "\n");
+                               ret = trace_seq_putc(s, '\n');
                        continue;
                }
                if (!ret)
                        break;
                if (ret)
                        ret = seq_print_user_ip(s, mm, ip, sym_flags);
-               ret = trace_seq_puts(s, "\n");
+               ret = trace_seq_putc(s, '\n');
        }
 
        if (mm)
@@ -579,7 +579,7 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags)
        int ret;
 
        if (!ip)
-               return trace_seq_printf(s, "0");
+               return trace_seq_putc(s, '0');
 
        if (sym_flags & TRACE_ITER_SYM_OFFSET)
                ret = seq_print_sym_offset(s, "%s", ip);
@@ -964,14 +964,14 @@ static enum print_line_t trace_fn_trace(struct trace_iterator *iter, int flags,
                goto partial;
 
        if ((flags & TRACE_ITER_PRINT_PARENT) && field->parent_ip) {
-               if (!trace_seq_printf(s, " <-"))
+               if (!trace_seq_puts(s, " <-"))
                        goto partial;
                if (!seq_print_ip_sym(s,
                                      field->parent_ip,
                                      flags))
                        goto partial;
        }
-       if (!trace_seq_printf(s, "\n"))
+       if (!trace_seq_putc(s, '\n'))
                goto partial;
 
        return TRACE_TYPE_HANDLED;
@@ -1210,7 +1210,7 @@ static enum print_line_t trace_stack_print(struct trace_iterator *iter,
 
                if (!seq_print_ip_sym(s, *p, flags))
                        goto partial;
-               if (!trace_seq_puts(s, "\n"))
+               if (!trace_seq_putc(s, '\n'))
                        goto partial;
        }
 

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 322e16461072575e6d8439208891b5730bd41438..0611562157210ea09b760fe14b9f18f038a35944 100644 (file)
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -175,7 +175,7 @@ print_syscall_exit(struct trace_iterator *iter, int flags,
        entry = syscall_nr_to_meta(syscall);
 
        if (!entry) {
-               trace_seq_printf(s, "\n");
+               trace_seq_putc(s, '\n');
                return TRACE_TYPE_HANDLED;
        }