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dccp: Toggle debug output without module unloading
This sets the sysfs permissions so that root can toggle the `debug' parameter available for nearly every DCCP module. This is useful since there are various module inter-dependencies. The debug flag can now be toggled at runtime using echo 1 > /sys/module/dccp/parameters/dccp_debug echo 1 > /sys/module/dccp_ccid2/parameters/ccid2_debug echo 1 > /sys/module/dccp_ccid3/parameters/ccid3_debug echo 1 > /sys/module/dccp_tfrc_lib/parameters/tfrc_debug The last is not very useful yet, since no code at the moment calls the tfrc_debug() macro. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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b569d5a134
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4 changed files with 4 additions and 4 deletions
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@ -783,7 +783,7 @@ static struct ccid_operations ccid2 = {
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};
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#ifdef CONFIG_IP_DCCP_CCID2_DEBUG
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module_param(ccid2_debug, bool, 0444);
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module_param(ccid2_debug, bool, 0644);
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MODULE_PARM_DESC(ccid2_debug, "Enable debug messages");
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#endif
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@ -963,7 +963,7 @@ static struct ccid_operations ccid3 = {
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};
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#ifdef CONFIG_IP_DCCP_CCID3_DEBUG
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module_param(ccid3_debug, bool, 0444);
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module_param(ccid3_debug, bool, 0644);
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MODULE_PARM_DESC(ccid3_debug, "Enable debug messages");
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#endif
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@ -10,7 +10,7 @@
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#ifdef CONFIG_IP_DCCP_TFRC_DEBUG
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int tfrc_debug;
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module_param(tfrc_debug, bool, 0444);
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module_param(tfrc_debug, bool, 0644);
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MODULE_PARM_DESC(tfrc_debug, "Enable debug messages");
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#endif
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@ -1030,7 +1030,7 @@ MODULE_PARM_DESC(thash_entries, "Number of ehash buckets");
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#ifdef CONFIG_IP_DCCP_DEBUG
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int dccp_debug;
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module_param(dccp_debug, bool, 0444);
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module_param(dccp_debug, bool, 0644);
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MODULE_PARM_DESC(dccp_debug, "Enable debug messages");
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EXPORT_SYMBOL_GPL(dccp_debug);
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