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qcacmn: Delete the nbuf debug entries of frag_list in qdf_nbuf_free_debug

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When a jumbo packet connected using fragmented list is freed,  kernel frees
the nbufs of the frag_list as well. In qdf_nbuf_free_debug, we currently
delete the nbuf debug entry of the head nbuf only,
resulting in false alarm of nbuf leaks of the frag_list.
Fix this by deleting the nbuf debug entries of all nbufs of frag_list.

Change-Id: I2d44c9c87ef8e65f9329ac62fad44089d2c76240
CRs-Fixed: 2498317
This commit is contained in:
Shiva Krishna Pittala 2019-07-27 18:56:19 +05:30 • committed by nshrivas
commit 98a8ffa8ad
1 changed files with 13 additions and 0 deletions
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13
qdf/linux/src/qdf_nbuf.c
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@ -2592,6 +2592,8 @@ qdf_export_symbol(qdf_nbuf_alloc_debug);
void qdf_nbuf_free_debug(qdf_nbuf_t nbuf, const char *func, uint32_t line)
{
qdf_nbuf_t ext_list;
if (qdf_unlikely(!nbuf))
return;
@ -2603,6 +2605,17 @@ void qdf_nbuf_free_debug(qdf_nbuf_t nbuf, const char *func, uint32_t line)
qdf_net_buf_debug_delete_node(nbuf);
qdf_nbuf_history_add(nbuf, func, line, QDF_NBUF_FREE);
/* Take care to delete the debug entries for frag_list */
ext_list = qdf_nbuf_get_ext_list(nbuf);
while (ext_list) {
if (qdf_nbuf_get_users(ext_list) == 1) {
qdf_nbuf_panic_on_free_if_mapped(ext_list, func, line);
qdf_net_buf_debug_delete_node(ext_list);
}
ext_list = qdf_nbuf_queue_next(ext_list);
}
free_buf:
__qdf_nbuf_free(nbuf);
}