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printk: use pointer for console_cmdline indexing
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Make the code a bit more compact by always using a pointer for the active
console_cmdline.

Move overly indented code to correct indent level.

Signed-off-by: Joe Perches <[email protected]>
Cc: Samuel Thibault <[email protected]>
Cc: Ming Lei <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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JoePerches authored and torvalds committed Jul 31, 2013
1 parent bbeddf5 commit 2347540
Showing 1 changed file with 26 additions and 23 deletions.
49 changes: 26 additions & 23 deletions kernel/printk/printk.c
Original file line number Diff line number Diff line change
Expand Up @@ -1756,18 +1756,19 @@ static int __add_preferred_console(char *name, int idx, char *options,
* See if this tty is not yet registered, and
* if we have a slot free.
*/
for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++)
if (strcmp(console_cmdline[i].name, name) == 0 &&
console_cmdline[i].index == idx) {
if (!brl_options)
selected_console = i;
return 0;
for (i = 0, c = console_cmdline;
i < MAX_CMDLINECONSOLES && c->name[0];
i++, c++) {
if (strcmp(c->name, name) == 0 && c->index == idx) {
if (!brl_options)
selected_console = i;
return 0;
}
}
if (i == MAX_CMDLINECONSOLES)
return -E2BIG;
if (!brl_options)
selected_console = i;
c = &console_cmdline[i];
strlcpy(c->name, name, sizeof(c->name));
c->options = options;
braille_set_options(c, brl_options);
Expand Down Expand Up @@ -1840,15 +1841,15 @@ int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, cha
struct console_cmdline *c;
int i;

for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++)
if (strcmp(console_cmdline[i].name, name) == 0 &&
console_cmdline[i].index == idx) {
c = &console_cmdline[i];
strlcpy(c->name, name_new, sizeof(c->name));
c->name[sizeof(c->name) - 1] = 0;
c->options = options;
c->index = idx_new;
return i;
for (i = 0, c = console_cmdline;
i < MAX_CMDLINECONSOLES && c->name[0];
i++, c++)
if (strcmp(c->name, name) == 0 && c->index == idx) {
strlcpy(c->name, name_new, sizeof(c->name));
c->name[sizeof(c->name) - 1] = 0;
c->options = options;
c->index = idx_new;
return i;
}
/* not found */
return -1;
Expand Down Expand Up @@ -2223,6 +2224,7 @@ void register_console(struct console *newcon)
int i;
unsigned long flags;
struct console *bcon = NULL;
struct console_cmdline *c;

/*
* before we register a new CON_BOOT console, make sure we don't
Expand Down Expand Up @@ -2270,24 +2272,25 @@ void register_console(struct console *newcon)
* See if this console matches one we selected on
* the command line.
*/
for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0];
i++) {
if (strcmp(console_cmdline[i].name, newcon->name) != 0)
for (i = 0, c = console_cmdline;
i < MAX_CMDLINECONSOLES && c->name[0];
i++, c++) {
if (strcmp(c->name, newcon->name) != 0)
continue;
if (newcon->index >= 0 &&
newcon->index != console_cmdline[i].index)
newcon->index != c->index)
continue;
if (newcon->index < 0)
newcon->index = console_cmdline[i].index;
newcon->index = c->index;

if (_braille_register_console(newcon, &console_cmdline[i]))
if (_braille_register_console(newcon, c))
return;

if (newcon->setup &&
newcon->setup(newcon, console_cmdline[i].options) != 0)
break;
newcon->flags |= CON_ENABLED;
newcon->index = console_cmdline[i].index;
newcon->index = c->index;
if (i == selected_console) {
newcon->flags |= CON_CONSDEV;
preferred_console = selected_console;
Expand Down

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