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247 lines
9.6 KiB
Diff
247 lines
9.6 KiB
Diff
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From 3b1088a09ec9438523c251d8435e78988824bc0d Mon Sep 17 00:00:00 2001
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From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
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Date: Tue, 7 Mar 2023 16:22:39 -0600
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Subject: [PATCH] wifi: ath11k: Replace fake flex-array with flexible-array
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member
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Zero-length arrays as fake flexible arrays are deprecated and we are
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moving towards adopting C99 flexible-array members instead.
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Address 25 of the following warnings found with GCC-13 and
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-fstrict-flex-arrays=3 enabled:
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drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c:30:51: warning: array subscript <unknown> is outside array bounds of ‘const u32[0]’ {aka ‘const unsigned int[]’} [-Warray-bounds=]
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This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
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routines on memcpy() and help us make progress towards globally
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enabling -fstrict-flex-arrays=3 [1].
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Link: https://github.com/KSPP/linux/issues/21
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Link: https://github.com/KSPP/linux/issues/266
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Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
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Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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Reviewed-by: Simon Horman <simon.horman@corigine.com>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/ZAe5L5DtmsQxzqRH@work
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---
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.../wireless/ath/ath11k/debugfs_htt_stats.h | 73 +++++++++++--------
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1 file changed, 43 insertions(+), 30 deletions(-)
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--- a/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h
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+++ b/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h
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@@ -143,7 +143,8 @@ enum htt_tx_pdev_underrun_enum {
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/* Bytes stored in little endian order */
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/* Length should be multiple of DWORD */
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struct htt_stats_string_tlv {
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- u32 data[0]; /* Can be variable length */
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+ /* Can be variable length */
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+ DECLARE_FLEX_ARRAY(u32, data);
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} __packed;
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#define HTT_STATS_MAC_ID GENMASK(7, 0)
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@@ -205,27 +206,32 @@ struct htt_tx_pdev_stats_cmn_tlv {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_pdev_stats_urrn_tlv_v {
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- u32 urrn_stats[0]; /* HTT_TX_PDEV_MAX_URRN_STATS */
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+ /* HTT_TX_PDEV_MAX_URRN_STATS */
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+ DECLARE_FLEX_ARRAY(u32, urrn_stats);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_pdev_stats_flush_tlv_v {
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- u32 flush_errs[0]; /* HTT_TX_PDEV_MAX_FLUSH_REASON_STATS */
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+ /* HTT_TX_PDEV_MAX_FLUSH_REASON_STATS */
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+ DECLARE_FLEX_ARRAY(u32, flush_errs);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_pdev_stats_sifs_tlv_v {
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- u32 sifs_status[0]; /* HTT_TX_PDEV_MAX_SIFS_BURST_STATS */
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+ /* HTT_TX_PDEV_MAX_SIFS_BURST_STATS */
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+ DECLARE_FLEX_ARRAY(u32, sifs_status);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_pdev_stats_phy_err_tlv_v {
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- u32 phy_errs[0]; /* HTT_TX_PDEV_MAX_PHY_ERR_STATS */
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+ /* HTT_TX_PDEV_MAX_PHY_ERR_STATS */
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+ DECLARE_FLEX_ARRAY(u32, phy_errs);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_pdev_stats_sifs_hist_tlv_v {
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- u32 sifs_hist_status[0]; /* HTT_TX_PDEV_SIFS_BURST_HIST_STATS */
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+ /* HTT_TX_PDEV_SIFS_BURST_HIST_STATS */
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+ DECLARE_FLEX_ARRAY(u32, sifs_hist_status);
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};
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struct htt_tx_pdev_stats_tx_ppdu_stats_tlv_v {
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@@ -590,20 +596,20 @@ struct htt_tx_hwq_difs_latency_stats_tlv
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_hwq_cmd_result_stats_tlv_v {
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- /* Histogram of sched cmd result */
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- u32 cmd_result[0]; /* HTT_TX_HWQ_MAX_CMD_RESULT_STATS */
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+ /* Histogram of sched cmd result, HTT_TX_HWQ_MAX_CMD_RESULT_STATS */
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+ DECLARE_FLEX_ARRAY(u32, cmd_result);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_hwq_cmd_stall_stats_tlv_v {
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- /* Histogram of various pause conitions */
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- u32 cmd_stall_status[0]; /* HTT_TX_HWQ_MAX_CMD_STALL_STATS */
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+ /* Histogram of various pause conitions, HTT_TX_HWQ_MAX_CMD_STALL_STATS */
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+ DECLARE_FLEX_ARRAY(u32, cmd_stall_status);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_hwq_fes_result_stats_tlv_v {
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- /* Histogram of number of user fes result */
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- u32 fes_result[0]; /* HTT_TX_HWQ_MAX_FES_RESULT_STATS */
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+ /* Histogram of number of user fes result, HTT_TX_HWQ_MAX_FES_RESULT_STATS */
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+ DECLARE_FLEX_ARRAY(u32, fes_result);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size
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@@ -635,8 +641,8 @@ struct htt_tx_hwq_tried_mpdu_cnt_hist_tl
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* #define WAL_TXOP_USED_HISTOGRAM_INTERVAL 1000 ( 1 ms )
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*/
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struct htt_tx_hwq_txop_used_cnt_hist_tlv_v {
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- /* Histogram of txop used cnt */
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- u32 txop_used_cnt_hist[0]; /* HTT_TX_HWQ_TXOP_USED_CNT_HIST */
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+ /* Histogram of txop used cnt, HTT_TX_HWQ_TXOP_USED_CNT_HIST */
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+ DECLARE_FLEX_ARRAY(u32, txop_used_cnt_hist);
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};
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/* == TX SELFGEN STATS == */
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@@ -804,17 +810,20 @@ struct htt_tx_pdev_mpdu_stats_tlv {
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/* == TX SCHED STATS == */
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_sched_txq_cmd_posted_tlv_v {
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- u32 sched_cmd_posted[0]; /* HTT_TX_PDEV_SCHED_TX_MODE_MAX */
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+ /* HTT_TX_PDEV_SCHED_TX_MODE_MAX */
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+ DECLARE_FLEX_ARRAY(u32, sched_cmd_posted);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_sched_txq_cmd_reaped_tlv_v {
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- u32 sched_cmd_reaped[0]; /* HTT_TX_PDEV_SCHED_TX_MODE_MAX */
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+ /* HTT_TX_PDEV_SCHED_TX_MODE_MAX */
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+ DECLARE_FLEX_ARRAY(u32, sched_cmd_reaped);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_sched_txq_sched_order_su_tlv_v {
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- u32 sched_order_su[0]; /* HTT_TX_PDEV_NUM_SCHED_ORDER_LOG */
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+ /* HTT_TX_PDEV_NUM_SCHED_ORDER_LOG */
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+ DECLARE_FLEX_ARRAY(u32, sched_order_su);
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};
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enum htt_sched_txq_sched_ineligibility_tlv_enum {
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@@ -842,7 +851,7 @@ enum htt_sched_txq_sched_ineligibility_t
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_sched_txq_sched_ineligibility_tlv_v {
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/* indexed by htt_sched_txq_sched_ineligibility_tlv_enum */
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- u32 sched_ineligibility[0];
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+ DECLARE_FLEX_ARRAY(u32, sched_ineligibility);
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};
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#define HTT_TX_PDEV_STATS_SCHED_PER_TXQ_MAC_ID GENMASK(7, 0)
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@@ -888,18 +897,20 @@ struct htt_stats_tx_sched_cmn_tlv {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_tqm_gen_mpdu_stats_tlv_v {
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- u32 gen_mpdu_end_reason[0]; /* HTT_TX_TQM_MAX_GEN_MPDU_END_REASON */
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+ /* HTT_TX_TQM_MAX_GEN_MPDU_END_REASON */
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+ DECLARE_FLEX_ARRAY(u32, gen_mpdu_end_reason);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_tqm_list_mpdu_stats_tlv_v {
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- u32 list_mpdu_end_reason[0]; /* HTT_TX_TQM_MAX_LIST_MPDU_END_REASON */
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+ /* HTT_TX_TQM_MAX_LIST_MPDU_END_REASON */
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+ DECLARE_FLEX_ARRAY(u32, list_mpdu_end_reason);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_tx_tqm_list_mpdu_cnt_tlv_v {
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- u32 list_mpdu_cnt_hist[0];
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- /* HTT_TX_TQM_MAX_LIST_MPDU_CNT_HISTOGRAM_BINS */
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+ /* HTT_TX_TQM_MAX_LIST_MPDU_CNT_HISTOGRAM_BINS */
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+ DECLARE_FLEX_ARRAY(u32, list_mpdu_cnt_hist);
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};
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struct htt_tx_tqm_pdev_stats_tlv_v {
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@@ -1098,7 +1109,7 @@ struct htt_tx_de_compl_stats_tlv {
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* ENTRIES_PER_BIN_COUNT)
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*/
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struct htt_tx_de_fw2wbm_ring_full_hist_tlv {
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- u32 fw2wbm_ring_full_hist[0];
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+ DECLARE_FLEX_ARRAY(u32, fw2wbm_ring_full_hist);
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};
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struct htt_tx_de_cmn_stats_tlv {
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@@ -1151,7 +1162,7 @@ struct htt_ring_if_cmn_tlv {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_sfm_client_user_tlv_v {
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/* Number of DWORDS used per user and per client */
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- u32 dwords_used_by_user_n[0];
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+ DECLARE_FLEX_ARRAY(u32, dwords_used_by_user_n);
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};
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struct htt_sfm_client_tlv {
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@@ -1436,12 +1447,14 @@ struct htt_rx_soc_fw_stats_tlv {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_soc_fw_refill_ring_empty_tlv_v {
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- u32 refill_ring_empty_cnt[0]; /* HTT_RX_STATS_REFILL_MAX_RING */
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+ /* HTT_RX_STATS_REFILL_MAX_RING */
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+ DECLARE_FLEX_ARRAY(u32, refill_ring_empty_cnt);
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_soc_fw_refill_ring_num_refill_tlv_v {
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- u32 refill_ring_num_refill[0]; /* HTT_RX_STATS_REFILL_MAX_RING */
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+ /* HTT_RX_STATS_REFILL_MAX_RING */
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+ DECLARE_FLEX_ARRAY(u32, refill_ring_num_refill);
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};
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/* RXDMA error code from WBM released packets */
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@@ -1473,7 +1486,7 @@ enum htt_rx_rxdma_error_code_enum {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_soc_fw_refill_ring_num_rxdma_err_tlv_v {
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- u32 rxdma_err[0]; /* HTT_RX_RXDMA_MAX_ERR_CODE */
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+ DECLARE_FLEX_ARRAY(u32, rxdma_err); /* HTT_RX_RXDMA_MAX_ERR_CODE */
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};
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/* REO error code from WBM released packets */
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@@ -1505,7 +1518,7 @@ enum htt_rx_reo_error_code_enum {
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_soc_fw_refill_ring_num_reo_err_tlv_v {
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- u32 reo_err[0]; /* HTT_RX_REO_MAX_ERR_CODE */
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+ DECLARE_FLEX_ARRAY(u32, reo_err); /* HTT_RX_REO_MAX_ERR_CODE */
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};
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/* == RX PDEV STATS == */
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@@ -1622,13 +1635,13 @@ struct htt_rx_pdev_fw_stats_phy_err_tlv
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_pdev_fw_ring_mpdu_err_tlv_v {
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/* Num error MPDU for each RxDMA error type */
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- u32 fw_ring_mpdu_err[0]; /* HTT_RX_STATS_RXDMA_MAX_ERR */
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+ DECLARE_FLEX_ARRAY(u32, fw_ring_mpdu_err); /* HTT_RX_STATS_RXDMA_MAX_ERR */
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};
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/* NOTE: Variable length TLV, use length spec to infer array size */
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struct htt_rx_pdev_fw_mpdu_drop_tlv_v {
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/* Num MPDU dropped */
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- u32 fw_mpdu_drop[0]; /* HTT_RX_STATS_FW_DROP_REASON_MAX */
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+ DECLARE_FLEX_ARRAY(u32, fw_mpdu_drop); /* HTT_RX_STATS_FW_DROP_REASON_MAX */
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};
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#define HTT_PDEV_CCA_STATS_TX_FRAME_INFO_PRESENT (0x1)
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