log: Add filter flag to match greater than a log level

This is the complement of the existing behavior to match only messages with
a log level less than a threshold. This is primarily useful in conjunction
with LOGFF_DENY.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2020-10-27 19:55:30 -04:00 committed by Tom Rini
parent f51e5ec4d7
commit 40455a6915
2 changed files with 15 additions and 7 deletions

View File

@ -162,11 +162,17 @@ static bool log_passes_filters(struct log_device *ldev, struct log_rec *rec)
} }
list_for_each_entry(filt, &ldev->filter_head, sibling_node) { list_for_each_entry(filt, &ldev->filter_head, sibling_node) {
if (rec->level > filt->max_level) if (filt->flags & LOGFF_LEVEL_MIN) {
if (rec->level < filt->level)
continue;
} else if (rec->level > filt->level) {
continue; continue;
}
if ((filt->flags & LOGFF_HAS_CAT) && if ((filt->flags & LOGFF_HAS_CAT) &&
!log_has_cat(filt->cat_list, rec->cat)) !log_has_cat(filt->cat_list, rec->cat))
continue; continue;
if (filt->file_list && if (filt->file_list &&
!log_has_file(filt->file_list, rec->file)) !log_has_file(filt->file_list, rec->file))
continue; continue;
@ -251,7 +257,7 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
} }
int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[], int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[],
enum log_level_t max_level, const char *file_list, enum log_level_t level, const char *file_list,
int flags) int flags)
{ {
struct log_filter *filt; struct log_filter *filt;
@ -279,7 +285,7 @@ int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[],
break; break;
} }
} }
filt->max_level = max_level; filt->level = level;
if (file_list) { if (file_list) {
filt->file_list = strdup(file_list); filt->file_list = strdup(file_list);
if (!filt->file_list) { if (!filt->file_list) {

View File

@ -369,6 +369,8 @@ enum log_filter_flags {
LOGFF_HAS_CAT = 1 << 0, LOGFF_HAS_CAT = 1 << 0,
/** @LOGFF_DENY: Filter denies matching messages */ /** @LOGFF_DENY: Filter denies matching messages */
LOGFF_DENY = 1 << 1, LOGFF_DENY = 1 << 1,
/** @LOGFF_LEVEL_MIN: Filter's level is a minimum, not a maximum */
LOGFF_LEVEL_MIN = 1 << 2,
}; };
/** /**
@ -384,7 +386,7 @@ enum log_filter_flags {
* @cat_list: List of categories to allow (terminated by %LOGC_END). If empty * @cat_list: List of categories to allow (terminated by %LOGC_END). If empty
* then all categories are permitted. Up to LOGF_MAX_CATEGORIES entries * then all categories are permitted. Up to LOGF_MAX_CATEGORIES entries
* can be provided * can be provided
* @max_level: Maximum log level to allow * @level: Maximum (or minimum, if LOGFF_MIN_LEVEL) log level to allow
* @file_list: List of files to allow, separated by comma. If NULL then all * @file_list: List of files to allow, separated by comma. If NULL then all
* files are permitted * files are permitted
* @sibling_node: Next filter in the list of filters for this log device * @sibling_node: Next filter in the list of filters for this log device
@ -393,7 +395,7 @@ struct log_filter {
int filter_num; int filter_num;
int flags; int flags;
enum log_category_t cat_list[LOGF_MAX_CATEGORIES]; enum log_category_t cat_list[LOGF_MAX_CATEGORIES];
enum log_level_t max_level; enum log_level_t level;
const char *file_list; const char *file_list;
struct list_head sibling_node; struct list_head sibling_node;
}; };
@ -494,14 +496,14 @@ int do_log_test(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
* @cat_list: List of categories to allow (terminated by %LOGC_END). If empty * @cat_list: List of categories to allow (terminated by %LOGC_END). If empty
* then all categories are permitted. Up to LOGF_MAX_CATEGORIES entries * then all categories are permitted. Up to LOGF_MAX_CATEGORIES entries
* can be provided * can be provided
* @max_level: Maximum log level to allow * @level: Maximum (or minimum, if LOGFF_LEVEL_MIN) log level to allow
* @file_list: List of files to allow, separated by comma. If NULL then all * @file_list: List of files to allow, separated by comma. If NULL then all
* files are permitted * files are permitted
* @return the sequence number of the new filter (>=0) if the filter was added, * @return the sequence number of the new filter (>=0) if the filter was added,
* or a -ve value on error * or a -ve value on error
*/ */
int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[], int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[],
enum log_level_t max_level, const char *file_list, enum log_level_t level, const char *file_list,
int flags); int flags);
/** /**