The H_GET_24X7_CATALOG_PAGE hcall can return a signed error code, so fix
this in the code.
The H_GET_24X7_DATA hcall can return a signed error code, so fix this in
the code. Also, don't truncate it to 32 bit to use as return value for
make_24x7_request. In case of error h_24x7_event_commit_txn passes that
return value to generic code, so it should be a proper errno. The other
caller of make_24x7_request is single_24x7_request, whose callers don't
actually care which error code is returned so they are not affected by this
change.
Finally, h_24x7_get_value doesn't use the error code from
single_24x7_request, so there's no need to store it.
Reviewed-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
return start + nl + dl + ldl;
}
return start + nl + dl + ldl;
}
-static unsigned long h_get_24x7_catalog_page_(unsigned long phys_4096,
- unsigned long version,
- unsigned long index)
+static long h_get_24x7_catalog_page_(unsigned long phys_4096,
+ unsigned long version, unsigned long index)
{
pr_devel("h_get_24x7_catalog_page(0x%lx, %lu, %lu)",
phys_4096, version, index);
{
pr_devel("h_get_24x7_catalog_page(0x%lx, %lu, %lu)",
phys_4096, version, index);
phys_4096, version, index);
}
phys_4096, version, index);
}
-static unsigned long h_get_24x7_catalog_page(char page[],
- u64 version, u32 index)
+static long h_get_24x7_catalog_page(char page[], u64 version, u32 index)
{
return h_get_24x7_catalog_page_(virt_to_phys(page),
version, index);
{
return h_get_24x7_catalog_page_(virt_to_phys(page),
version, index);
struct attribute ***event_descs_,
struct attribute ***event_long_descs_)
{
struct attribute ***event_descs_,
struct attribute ***event_long_descs_)
{
size_t catalog_len, catalog_page_len, event_entry_count,
event_data_len, event_data_offs,
event_data_bytes, junk_events, event_idx, event_attr_ct, i,
size_t catalog_len, catalog_page_len, event_entry_count,
event_data_len, event_data_offs,
event_data_bytes, junk_events, event_idx, event_attr_ct, i,
struct bin_attribute *bin_attr, char *buf,
loff_t offset, size_t count)
{
struct bin_attribute *bin_attr, char *buf,
loff_t offset, size_t count)
{
ssize_t ret = 0;
size_t catalog_len = 0, catalog_page_len = 0;
loff_t page_offset = 0;
ssize_t ret = 0;
size_t catalog_len = 0, catalog_page_len = 0;
loff_t page_offset = 0;
struct device_attribute *dev_attr, \
char *buf) \
{ \
struct device_attribute *dev_attr, \
char *buf) \
{ \
ssize_t ret = 0; \
void *page = kmem_cache_alloc(hv_page_cache, GFP_USER); \
struct hv_24x7_catalog_page_0 *page_0 = page; \
ssize_t ret = 0; \
void *page = kmem_cache_alloc(hv_page_cache, GFP_USER); \
struct hv_24x7_catalog_page_0 *page_0 = page; \
static int make_24x7_request(struct hv_24x7_request_buffer *request_buffer,
struct hv_24x7_data_result_buffer *result_buffer)
{
static int make_24x7_request(struct hv_24x7_request_buffer *request_buffer,
struct hv_24x7_data_result_buffer *result_buffer)
{
/*
* NOTE: Due to variable number of array elements in request and
/*
* NOTE: Due to variable number of array elements in request and
req->starting_ix, req->starting_lpar_ix,
ret, ret, result_buffer->detailed_rc,
result_buffer->failing_request_ix);
req->starting_ix, req->starting_lpar_ix,
ret, ret, result_buffer->detailed_rc,
result_buffer->failing_request_ix);
-static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
+static int single_24x7_request(struct perf_event *event, u64 *count)
struct hv_24x7_result *result;
struct hv_24x7_request_buffer *request_buffer;
struct hv_24x7_data_result_buffer *result_buffer;
struct hv_24x7_result *result;
struct hv_24x7_request_buffer *request_buffer;
struct hv_24x7_data_result_buffer *result_buffer;
static u64 h_24x7_get_value(struct perf_event *event)
{
static u64 h_24x7_get_value(struct perf_event *event)
{
- ret = single_24x7_request(event, &ct);
- if (ret)
+
+ if (single_24x7_request(event, &ct))
/* We checked this in event init, shouldn't fail here... */
return 0;
/* We checked this in event init, shouldn't fail here... */
return 0;