samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: Add handling for jumbo pkts in qdf_nbuf_unshare_debug()

Browse Source 
Add handling for jumbo pkts in debug version on qdf_nbuf_unshare to
resolve false positive alarms.

Change-Id: If18f81490f145de21d01c19e868252274c7dfefa
CRs-Fixed: 3145824
This commit is contained in:
Harsh Kumar Bijlani
2022-03-11 00:36:40 +05:30
committed by Madan Koyyalamudi
parent fbfdbb961d
commit a95a769c93
1 changed files with 27 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
qdf/linux/src/qdf_nbuf.c
View File

@@ -3308,6 +3308,7 @@ qdf_nbuf_unshare_debug(qdf_nbuf_t buf, const char *func_name,
qdf_frag_t p_frag;
uint32_t num_nr_frags;
uint32_t idx = 0;
qdf_nbuf_t ext_list, next;
if (is_initial_mem_debug_disabled)
return __qdf_nbuf_unshare(buf);
@@ -3316,6 +3317,9 @@ qdf_nbuf_unshare_debug(qdf_nbuf_t buf, const char *func_name,
if (!qdf_nbuf_is_cloned(buf))
return buf;
if (qdf_nbuf_get_users(buf) > 1)
goto unshare_buf;
/* Take care to delete the debug entries for frags */
num_nr_frags = qdf_nbuf_get_nr_frags(buf);
@@ -3329,25 +3333,37 @@ qdf_nbuf_unshare_debug(qdf_nbuf_t buf, const char *func_name,
qdf_net_buf_debug_delete_node(buf);
unshared_buf = __qdf_nbuf_unshare(buf);
if (qdf_likely(unshared_buf)) {
qdf_net_buf_debug_add_node(unshared_buf, 0,
func_name, line_num);
/* Take care to add the debug entries for frags */
num_nr_frags = qdf_nbuf_get_nr_frags(unshared_buf);
/* Take care of jumbo packet connected using frag_list and frags */
ext_list = qdf_nbuf_get_ext_list(buf);
while (ext_list) {
idx = 0;
next = qdf_nbuf_queue_next(ext_list);
num_nr_frags = qdf_nbuf_get_nr_frags(ext_list);
if (qdf_nbuf_get_users(ext_list) > 1) {
ext_list = next;
continue;
}
while (idx < num_nr_frags) {
p_frag = qdf_nbuf_get_frag_addr(unshared_buf, idx);
p_frag = qdf_nbuf_get_frag_addr(ext_list, idx);
if (qdf_likely(p_frag))
qdf_frag_debug_refcount_inc(p_frag, func_name,
qdf_frag_debug_refcount_dec(p_frag, func_name,
line_num);
idx++;
}
qdf_net_buf_debug_delete_node(ext_list);
ext_list = next;
}
unshare_buf:
unshared_buf = __qdf_nbuf_unshare(buf);
if (qdf_likely(unshared_buf))
qdf_net_buf_debug_add_node(unshared_buf, 0, func_name,
line_num);
return unshared_buf;
}