diff options
Diffstat (limited to 'drivers/acpi/processor_throttling.c')
-rw-r--r-- | drivers/acpi/processor_throttling.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index bb06738860c4..0622ace05220 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c | |||
@@ -71,7 +71,7 @@ static int acpi_processor_update_tsd_coord(void) | |||
71 | * coordination between all CPUs. | 71 | * coordination between all CPUs. |
72 | */ | 72 | */ |
73 | for_each_possible_cpu(i) { | 73 | for_each_possible_cpu(i) { |
74 | pr = processors[i]; | 74 | pr = per_cpu(processors, i); |
75 | if (!pr) | 75 | if (!pr) |
76 | continue; | 76 | continue; |
77 | 77 | ||
@@ -93,7 +93,7 @@ static int acpi_processor_update_tsd_coord(void) | |||
93 | 93 | ||
94 | cpus_clear(covered_cpus); | 94 | cpus_clear(covered_cpus); |
95 | for_each_possible_cpu(i) { | 95 | for_each_possible_cpu(i) { |
96 | pr = processors[i]; | 96 | pr = per_cpu(processors, i); |
97 | if (!pr) | 97 | if (!pr) |
98 | continue; | 98 | continue; |
99 | 99 | ||
@@ -119,7 +119,7 @@ static int acpi_processor_update_tsd_coord(void) | |||
119 | if (i == j) | 119 | if (i == j) |
120 | continue; | 120 | continue; |
121 | 121 | ||
122 | match_pr = processors[j]; | 122 | match_pr = per_cpu(processors, j); |
123 | if (!match_pr) | 123 | if (!match_pr) |
124 | continue; | 124 | continue; |
125 | 125 | ||
@@ -152,7 +152,7 @@ static int acpi_processor_update_tsd_coord(void) | |||
152 | if (i == j) | 152 | if (i == j) |
153 | continue; | 153 | continue; |
154 | 154 | ||
155 | match_pr = processors[j]; | 155 | match_pr = per_cpu(processors, j); |
156 | if (!match_pr) | 156 | if (!match_pr) |
157 | continue; | 157 | continue; |
158 | 158 | ||
@@ -172,7 +172,7 @@ static int acpi_processor_update_tsd_coord(void) | |||
172 | 172 | ||
173 | err_ret: | 173 | err_ret: |
174 | for_each_possible_cpu(i) { | 174 | for_each_possible_cpu(i) { |
175 | pr = processors[i]; | 175 | pr = per_cpu(processors, i); |
176 | if (!pr) | 176 | if (!pr) |
177 | continue; | 177 | continue; |
178 | 178 | ||
@@ -214,7 +214,7 @@ static int acpi_processor_throttling_notifier(unsigned long event, void *data) | |||
214 | struct acpi_processor_throttling *p_throttling; | 214 | struct acpi_processor_throttling *p_throttling; |
215 | 215 | ||
216 | cpu = p_tstate->cpu; | 216 | cpu = p_tstate->cpu; |
217 | pr = processors[cpu]; | 217 | pr = per_cpu(processors, cpu); |
218 | if (!pr) { | 218 | if (!pr) { |
219 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid pr pointer\n")); | 219 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid pr pointer\n")); |
220 | return 0; | 220 | return 0; |
@@ -1035,7 +1035,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) | |||
1035 | * cpus. | 1035 | * cpus. |
1036 | */ | 1036 | */ |
1037 | for_each_cpu_mask(i, online_throttling_cpus) { | 1037 | for_each_cpu_mask(i, online_throttling_cpus) { |
1038 | match_pr = processors[i]; | 1038 | match_pr = per_cpu(processors, i); |
1039 | /* | 1039 | /* |
1040 | * If the pointer is invalid, we will report the | 1040 | * If the pointer is invalid, we will report the |
1041 | * error message and continue. | 1041 | * error message and continue. |
@@ -1232,7 +1232,10 @@ static ssize_t acpi_processor_write_throttling(struct file *file, | |||
1232 | int result = 0; | 1232 | int result = 0; |
1233 | struct seq_file *m = file->private_data; | 1233 | struct seq_file *m = file->private_data; |
1234 | struct acpi_processor *pr = m->private; | 1234 | struct acpi_processor *pr = m->private; |
1235 | char state_string[12] = { '\0' }; | 1235 | char state_string[5] = ""; |
1236 | char *charp = NULL; | ||
1237 | size_t state_val = 0; | ||
1238 | char tmpbuf[5] = ""; | ||
1236 | 1239 | ||
1237 | if (!pr || (count > sizeof(state_string) - 1)) | 1240 | if (!pr || (count > sizeof(state_string) - 1)) |
1238 | return -EINVAL; | 1241 | return -EINVAL; |
@@ -1241,10 +1244,23 @@ static ssize_t acpi_processor_write_throttling(struct file *file, | |||
1241 | return -EFAULT; | 1244 | return -EFAULT; |
1242 | 1245 | ||
1243 | state_string[count] = '\0'; | 1246 | state_string[count] = '\0'; |
1247 | if ((count > 0) && (state_string[count-1] == '\n')) | ||
1248 | state_string[count-1] = '\0'; | ||
1244 | 1249 | ||
1245 | result = acpi_processor_set_throttling(pr, | 1250 | charp = state_string; |
1246 | simple_strtoul(state_string, | 1251 | if ((state_string[0] == 't') || (state_string[0] == 'T')) |
1247 | NULL, 0)); | 1252 | charp++; |
1253 | |||
1254 | state_val = simple_strtoul(charp, NULL, 0); | ||
1255 | if (state_val >= pr->throttling.state_count) | ||
1256 | return -EINVAL; | ||
1257 | |||
1258 | snprintf(tmpbuf, 5, "%zu", state_val); | ||
1259 | |||
1260 | if (strcmp(tmpbuf, charp) != 0) | ||
1261 | return -EINVAL; | ||
1262 | |||
1263 | result = acpi_processor_set_throttling(pr, state_val); | ||
1248 | if (result) | 1264 | if (result) |
1249 | return result; | 1265 | return result; |
1250 | 1266 | ||