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sysctl: replace child with an enumeration
This is part of the effort to remove the empty element at the end of ctl_table structs. "child" was a deprecated elem in this struct and was being used to differentiate between two types of ctl_tables: "normal" and "permanently emtpy". What changed?: * Replace "child" with an enumeration that will have two values: the default (0) and the permanently empty (1). The latter is left at zero so when struct ctl_table is created with kzalloc or in a local context, it will have the zero value by default. We document the new enum with kdoc. * Remove the "empty child" check from sysctl_check_table * Remove count_subheaders function as there is no longer a need to calculate how many headers there are for every child * Remove the recursive call to unregister_sysctl_table as there is no need to traverse down the child tree any longer * Add a new SYSCTL_PERM_EMPTY_DIR binary flag * Remove the last remanence of child from partport/procfs.c Signed-off-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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Joel Granados
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Luis Chamberlain
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Jun 18, 2023
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Original file line number | Diff line number | Diff line change |
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@@ -387,7 +387,6 @@ parport_device_sysctl_template = { | |
.data = NULL, | ||
.maxlen = 0, | ||
.mode = 0555, | ||
.child = NULL | ||
}, | ||
{} | ||
} | ||
|
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