coresight: don't use bitmap_print_to_pagebuf()

Switch the driver to using the proper sysfs_emit("%*pbl") where
appropriate.

Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Yury Norov <ynorov@nvidia.com>

diff --git a/drivers/hwtracing/coresight/coresight-cti-sysfs.c b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
index 572b80ee96fbf18ec8cf9abc30d109a676dfbc5d..26ec0d8ed181c58dff6c041a68ce5295d47ca4f1 100644 (file)
--- a/drivers/hwtracing/coresight/coresight-cti-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
@@ -606,14 +606,11 @@ static ssize_t chan_gate_enable_show(struct device *dev,
        struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent);
        struct cti_config *cfg = &drvdata->config;
        unsigned long ctigate_bitmask = cfg->ctigate;
-       int size = 0;
 
        if (cfg->ctigate == 0)
-               size = sprintf(buf, "\n");
-       else
-               size = bitmap_print_to_pagebuf(true, buf, &ctigate_bitmask,
-                                              cfg->nr_ctm_channels);
-       return size;
+               return sprintf(buf, "\n");
+
+       return sysfs_emit(buf, "%*pbl\n", cfg->nr_ctm_channels, &ctigate_bitmask);
 }
 static DEVICE_ATTR_RW(chan_gate_enable);
 
@@ -710,12 +707,13 @@ static ssize_t trigout_filtered_show(struct device *dev,
 {
        struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent);
        struct cti_config *cfg = &drvdata->config;
-       int size = 0, nr_trig_max = cfg->nr_trig_max;
+       int nr_trig_max = cfg->nr_trig_max;
        unsigned long mask = cfg->trig_out_filter;
 
-       if (mask)
-               size = bitmap_print_to_pagebuf(true, buf, &mask, nr_trig_max);
-       return size;
+       if (mask == 0)
+               return 0;
+
+       return sysfs_emit(buf, "%*pbl\n", nr_trig_max, &mask);
 }
 static DEVICE_ATTR_RO(trigout_filtered);
 
@@ -834,7 +832,7 @@ static ssize_t print_chan_list(struct device *dev,
 {
        struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent);
        struct cti_config *config = &drvdata->config;
-       int size, i;
+       int i;
        unsigned long inuse_bits = 0, chan_mask;
 
        /* scan regs to get bitmap of channels in use. */
@@ -852,11 +850,9 @@ static ssize_t print_chan_list(struct device *dev,
        /* list of channels, or 'none' */
        chan_mask = GENMASK(config->nr_ctm_channels - 1, 0);
        if (inuse_bits & chan_mask)
-               size = bitmap_print_to_pagebuf(true, buf, &inuse_bits,
-                                              config->nr_ctm_channels);
-       else
-               size = sprintf(buf, "\n");
-       return size;
+               return sysfs_emit(buf, "%*pbl\n", config->nr_ctm_channels, &inuse_bits);
+
+       return sprintf(buf, "\n");
 }
 
 static ssize_t chan_inuse_show(struct device *dev,
@@ -928,7 +924,7 @@ static ssize_t trigin_sig_show(struct device *dev,
        struct cti_config *cfg = &drvdata->config;
        unsigned long mask = con->con_in->used_mask;
 
-       return bitmap_print_to_pagebuf(true, buf, &mask, cfg->nr_trig_max);
+       return sysfs_emit(buf, "%*pbl\n", cfg->nr_trig_max, &mask);
 }
 
 static ssize_t trigout_sig_show(struct device *dev,
@@ -942,7 +938,7 @@ static ssize_t trigout_sig_show(struct device *dev,
        struct cti_config *cfg = &drvdata->config;
        unsigned long mask = con->con_out->used_mask;
 
-       return bitmap_print_to_pagebuf(true, buf, &mask, cfg->nr_trig_max);
+       return sysfs_emit(buf, "%*pbl\n", cfg->nr_trig_max, &mask);
 }
 
 /* convert a sig type id to a name */