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msm: ipa4: Decrement number of packet in queue only if count was not zero

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Decrement number of packet in ODL queue only if the count was not zero,
otherwise it was leading packet count value to negative value.

Change-Id: I21f913396f7062d4e175c923cf4f523a567f06a9
Acked-by: Ashok Vuyyuru <avuyyuru@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>
This commit is contained in:
Mohammed Javid 2018-09-10 18:02:32 +05:30
parent 418f4a45e7
commit 03b7faad8c
3 changed files with 11 additions and 8 deletions
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2
drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
View File

@ -1152,7 +1152,7 @@ static ssize_t ipa3_read_odlstats(struct file *file, char __user *ubuf,
ipa3_odl_ctx->stats.odl_rx_pkt,
ipa3_odl_ctx->stats.odl_tx_diag_pkt,
ipa3_odl_ctx->stats.odl_drop_pkt,
ipa3_odl_ctx->stats.numer_in_queue);
atomic_read(&ipa3_odl_ctx->stats.numer_in_queue));
cnt += nbytes;

15
drivers/platform/msm/ipa/ipa_v3/ipa_odl.c
View File

@ -215,7 +215,8 @@ static void delete_first_node(void)
kfree(msg->buff);
kfree(msg);
ipa3_odl_ctx->stats.odl_drop_pkt++;
IPA_STATS_DEC_CNT(ipa3_odl_ctx->stats.numer_in_queue);
if (atomic_read(&ipa3_odl_ctx->stats.numer_in_queue))
atomic_dec(&ipa3_odl_ctx->stats.numer_in_queue);
}
} else {
IPADBG("List Empty\n");
@ -244,10 +245,11 @@ int ipa3_send_adpl_msg(unsigned long skb_data)
msg->buff = data;
msg->len = skb->len;
mutex_lock(&ipa3_odl_ctx->adpl_msg_lock);
if (ipa3_odl_ctx->stats.numer_in_queue >= MAX_QUEUE_TO_ODL)
if (atomic_read(&ipa3_odl_ctx->stats.numer_in_queue) >=
MAX_QUEUE_TO_ODL)
delete_first_node();
list_add_tail(&msg->link, &ipa3_odl_ctx->adpl_msg_list);
IPA_STATS_INC_CNT(ipa3_odl_ctx->stats.numer_in_queue);
atomic_inc(&ipa3_odl_ctx->stats.numer_in_queue);
mutex_unlock(&ipa3_odl_ctx->adpl_msg_lock);
IPA_STATS_INC_CNT(ipa3_odl_ctx->stats.odl_rx_pkt);
@ -342,7 +344,7 @@ int ipa3_odl_pipe_open(void)
IPADBG("Setup endpoint config success\n");
ipa3_odl_ctx->stats.odl_drop_pkt = 0;
ipa3_odl_ctx->stats.numer_in_queue = 0;
atomic_set(&ipa3_odl_ctx->stats.numer_in_queue, 0);
ipa3_odl_ctx->stats.odl_rx_pkt = 0;
ipa3_odl_ctx->stats.odl_tx_diag_pkt = 0;
/*
@ -422,7 +424,7 @@ void ipa3_odl_pipe_cleanup(bool is_ssr)
*/
ipa3_odl_ctx->odl_ctl_msg_wq_flag = true;
ipa3_odl_ctx->stats.odl_drop_pkt = 0;
ipa3_odl_ctx->stats.numer_in_queue = 0;
atomic_set(&ipa3_odl_ctx->stats.numer_in_queue, 0);
ipa3_odl_ctx->stats.odl_rx_pkt = 0;
ipa3_odl_ctx->stats.odl_tx_diag_pkt = 0;
IPADBG("Wake up odl ctl\n");
@ -465,7 +467,8 @@ static ssize_t ipa_adpl_read(struct file *filp, char __user *buf, size_t count,
msg = list_first_entry(&ipa3_odl_ctx->adpl_msg_list,
struct ipa3_push_msg_odl, link);
list_del(&msg->link);
IPA_STATS_DEC_CNT(ipa3_odl_ctx->stats.numer_in_queue);
if (atomic_read(&ipa3_odl_ctx->stats.numer_in_queue))
atomic_dec(&ipa3_odl_ctx->stats.numer_in_queue);
}
mutex_unlock(&ipa3_odl_ctx->adpl_msg_lock);

2
drivers/platform/msm/ipa/ipa_v3/ipa_odl.h
View File

@ -24,7 +24,7 @@ struct ipa3_odlstats {
u32 odl_rx_pkt;
u32 odl_tx_diag_pkt;
u32 odl_drop_pkt;
u32 numer_in_queue;
atomic_t numer_in_queue;
};
struct odl_state_bit_mask {