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qcacmn: Add API to remove frag from skb

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Add API to remove frag from skb

CRs-Fixed: 3172668
Change-Id: I0b392366760036c6fda545f558f72a64138d2b11
This commit is contained in:
Amir Patel
2022-04-11 16:12:25 +05:30
committed by Madan Koyyalamudi
parent c180aaa364
commit 6b69543b79
3 changed files with 113 additions and 0 deletions
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67
qdf/linux/src/qdf_nbuf.c
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@@ -5504,6 +5504,28 @@ QDF_STATUS __qdf_nbuf_move_frag_page_offset(__qdf_nbuf_t nbuf, uint8_t idx,
qdf_export_symbol(__qdf_nbuf_move_frag_page_offset);
void __qdf_nbuf_remove_frag(__qdf_nbuf_t nbuf,
uint16_t idx,
uint16_t truesize)
{
struct page *page;
uint16_t frag_len;
page = skb_frag_page(&skb_shinfo(nbuf)->frags[idx]);
if (qdf_unlikely(!page))
return;
frag_len = qdf_nbuf_get_frag_size_by_idx(nbuf, idx);
put_page(page);
nbuf->len -= frag_len;
nbuf->data_len -= frag_len;
nbuf->truesize -= truesize;
skb_shinfo(nbuf)->nr_frags--;
}
qdf_export_symbol(__qdf_nbuf_remove_frag);
void __qdf_nbuf_add_rx_frag(__qdf_frag_t buf, __qdf_nbuf_t nbuf,
int offset, int frag_len,
unsigned int truesize, bool take_frag_ref)
@@ -5730,6 +5752,51 @@ void qdf_net_buf_debug_release_frag(qdf_nbuf_t buf, const char *func,
}
qdf_export_symbol(qdf_net_buf_debug_release_frag);
/**
* qdf_nbuf_remove_frag_debug - Remove frag from nbuf
* @nbuf: nbuf where frag will be removed
* @idx: frag index
* @truesize: truesize of frag
* @func: Caller function name
* @line: Caller function line no.
*
* Return: QDF_STATUS
*
*/
QDF_STATUS
qdf_nbuf_remove_frag_debug(qdf_nbuf_t nbuf,
uint16_t idx,
uint16_t truesize,
const char *func,
uint32_t line)
{
uint16_t num_frags;
qdf_frag_t frag;
if (qdf_unlikely(!nbuf))
return QDF_STATUS_E_INVAL;
num_frags = qdf_nbuf_get_nr_frags(nbuf);
if (idx >= num_frags)
return QDF_STATUS_E_INVAL;
if (qdf_likely(is_initial_mem_debug_disabled)) {
__qdf_nbuf_remove_frag(nbuf, idx, truesize);
return QDF_STATUS_SUCCESS;
}
frag = qdf_nbuf_get_frag_addr(nbuf, idx);
if (qdf_likely(frag))
qdf_frag_debug_refcount_dec(frag, func, line);
__qdf_nbuf_remove_frag(nbuf, idx, truesize);
return QDF_STATUS_SUCCESS;
}
qdf_export_symbol(qdf_nbuf_remove_frag_debug);
#endif /* NBUF_FRAG_MEMORY_DEBUG */
/**