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platform/x86: thinkpad_acpi: Replace next_cmd(&buf) with strsep(&buf, ",")

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It seems next_cmd() predates the strsep() implementation in the kernel.
For a long time we have the latter one, thus, replace next_cmd(&buf) with
strsep(&buf, ",").

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2020-05-11 15:56:24 +03:00
parent dd950f16b1
commit be51bd4585
1 changed files with 15 additions and 34 deletions
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49
drivers/platform/x86/thinkpad_acpi.c
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@ -885,10 +885,10 @@ static ssize_t dispatch_proc_write(struct file *file,
if (!ibm || !ibm->write)
return -EINVAL;
if (count > PAGE_SIZE - 2)
if (count > PAGE_SIZE - 1)
return -EINVAL;
kernbuf = kmalloc(count + 2, GFP_KERNEL);
kernbuf = kmalloc(count + 1, GFP_KERNEL);
if (!kernbuf)
return -ENOMEM;
@ -898,7 +898,6 @@ static ssize_t dispatch_proc_write(struct file *file,
}
kernbuf[count] = 0;
strcat(kernbuf, ",");
ret = ibm->write(kernbuf);
if (ret == 0)
ret = count;
@ -916,23 +915,6 @@ static const struct proc_ops dispatch_proc_ops = {
.proc_write = dispatch_proc_write,
};
static char *next_cmd(char **cmds)
{
char *start = *cmds;
char *end;
while ((end = strchr(start, ',')) && end == start)
start = end + 1;
if (!end)
return NULL;
*end = 0;
*cmds = end + 1;
return start;
}
/****************************************************************************
****************************************************************************
*
@ -1423,7 +1405,7 @@ static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf)
if (id >= TPACPI_RFK_SW_MAX)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "enable") == 0)
status = TPACPI_RFK_RADIO_ON;
else if (strlencmp(cmd, "disable") == 0)
@ -4306,7 +4288,7 @@ static int hotkey_write(char *buf)
mask = hotkey_user_mask;
res = 0;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "enable") == 0) {
hotkey_enabledisable_warn(1);
} else if (strlencmp(cmd, "disable") == 0) {
@ -5233,7 +5215,7 @@ static int video_write(char *buf)
enable = 0;
disable = 0;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "lcd_enable") == 0) {
enable |= TP_ACPI_VIDEO_S_LCD;
} else if (strlencmp(cmd, "lcd_disable") == 0) {
@ -5477,7 +5459,7 @@ static int kbdlight_write(char *buf)
if (!tp_features.kbdlight)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "0") == 0)
level = 0;
else if (strlencmp(cmd, "1") == 0)
@ -5657,7 +5639,7 @@ static int light_write(char *buf)
if (!tp_features.light)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "on") == 0) {
newstatus = 1;
} else if (strlencmp(cmd, "off") == 0) {
@ -5742,7 +5724,7 @@ static int cmos_write(char *buf)
char *cmd;
int cmos_cmd, res;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%u", &cmos_cmd) == 1 &&
cmos_cmd >= 0 && cmos_cmd <= 21) {
/* cmos_cmd set */
@ -6131,7 +6113,7 @@ static int led_write(char *buf)
if (!led_supported)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%d", &led) != 1)
return -EINVAL;
@ -6218,7 +6200,7 @@ static int beep_write(char *buf)
if (!beep_handle)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%u", &beep_cmd) == 1 &&
beep_cmd >= 0 && beep_cmd <= 17) {
/* beep_cmd set */
@ -7106,7 +7088,7 @@ static int brightness_write(char *buf)
if (level < 0)
return level;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "up") == 0) {
if (level < bright_maxlvl)
level++;
@ -7858,7 +7840,7 @@ static int volume_write(char *buf)
new_level = s & TP_EC_AUDIO_LVL_MSK;
new_mute = s & TP_EC_AUDIO_MUTESW_MSK;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (!tp_features.mixer_no_level_control) {
if (strlencmp(cmd, "up") == 0) {
if (new_mute)
@ -9168,7 +9150,7 @@ static int fan_write(char *buf)
char *cmd;
int rc = 0;
while (!rc && (cmd = next_cmd(&buf))) {
while (!rc && (cmd = strsep(&buf, ","))) {
if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) &&
fan_write_cmd_level(cmd, &rc)) &&
!((fan_control_commands & TPACPI_FAN_CMD_ENABLE) &&
@ -9807,7 +9789,7 @@ static int lcdshadow_write(char *buf)
if (lcdshadow_state < 0)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
while ((cmd = strsep(&buf, ","))) {
if (strlencmp(cmd, "0") == 0)
state = 0;
else if (strlencmp(cmd, "1") == 0)
@ -10330,10 +10312,9 @@ static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
continue;
if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
if (strlen(val) > sizeof(ibms_init[i].param) - 2)
if (strlen(val) > sizeof(ibms_init[i].param) - 1)
return -ENOSPC;
strcpy(ibms_init[i].param, val);
strcat(ibms_init[i].param, ",");
return 0;
}
}