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authorLinux Build Service Account <lnxbuild@quicinc.com>2017-04-27 07:06:52 -0700
committerGerrit - the friendly Code Review server <code-review@localhost>2017-04-27 07:06:51 -0700
commit9d9b16e021b32fe2bb7144ae8d081e8c139d3a74 (patch)
tree0b2f52278a5c3e3ac354953237ab18e96f15addb
parentdfa58d63ec3f64031b016f67271e75096a610304 (diff)
parentbdea399022683d0ac0fc582218c0d5517887416d (diff)
Merge "msm: ipa: fix IPC low priority logging"
-rw-r--r--drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c20
-rw-r--r--drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c17
2 files changed, 17 insertions, 20 deletions
diff --git a/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c b/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c
index 8d2213f30ec2..e48c19c522a7 100644
--- a/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c
+++ b/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c
@@ -123,6 +123,7 @@ static struct dentry *dfile_ipa_poll_iteration;
static char dbg_buff[IPA_MAX_MSG_LEN];
static char *active_clients_buf;
static s8 ep_reg_idx;
+static void *ipa_ipc_low_buff;
int _ipa_read_gen_reg_v1_1(char *buff, int max_len)
{
@@ -1823,23 +1824,20 @@ static ssize_t ipa_enable_ipc_low(struct file *file,
if (kstrtos8(dbg_buff, 0, &option))
return -EFAULT;
+ mutex_lock(&ipa_ctx->lock);
if (option) {
- if (!ipa_ctx->logbuf_low) {
- ipa_ctx->logbuf_low =
+ if (!ipa_ipc_low_buff) {
+ ipa_ipc_low_buff =
ipc_log_context_create(IPA_IPC_LOG_PAGES,
"ipa_low", 0);
+ if (ipa_ipc_low_buff == NULL)
+ IPAERR("failed to get logbuf_low\n");
}
-
- if (ipa_ctx->logbuf_low == NULL) {
- IPAERR("failed to get logbuf_low\n");
- return -EFAULT;
- }
-
+ ipa_ctx->logbuf_low = ipa_ipc_low_buff;
} else {
- if (ipa_ctx->logbuf_low)
- ipc_log_context_destroy(ipa_ctx->logbuf_low);
- ipa_ctx->logbuf_low = NULL;
+ ipa_ctx->logbuf_low = NULL;
}
+ mutex_unlock(&ipa_ctx->lock);
return count;
}
diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c b/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
index 17e6973b807f..72eb3808c7a4 100644
--- a/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
+++ b/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
@@ -106,6 +106,7 @@ static char dbg_buff[IPA_MAX_MSG_LEN];
static char *active_clients_buf;
static s8 ep_reg_idx;
+static void *ipa_ipc_low_buff;
static ssize_t ipa3_read_gen_reg(struct file *file, char __user *ubuf,
@@ -1778,22 +1779,20 @@ static ssize_t ipa3_enable_ipc_low(struct file *file,
if (kstrtos8(dbg_buff, 0, &option))
return -EFAULT;
+ mutex_lock(&ipa3_ctx->lock);
if (option) {
- if (!ipa3_ctx->logbuf_low) {
- ipa3_ctx->logbuf_low =
+ if (!ipa_ipc_low_buff) {
+ ipa_ipc_low_buff =
ipc_log_context_create(IPA_IPC_LOG_PAGES,
"ipa_low", 0);
}
-
- if (ipa3_ctx->logbuf_low == NULL) {
- IPAERR("failed to get logbuf_low\n");
- return -EFAULT;
- }
+ if (ipa_ipc_low_buff == NULL)
+ IPAERR("failed to get logbuf_low\n");
+ ipa3_ctx->logbuf_low = ipa_ipc_low_buff;
} else {
- if (ipa3_ctx->logbuf_low)
- ipc_log_context_destroy(ipa3_ctx->logbuf_low);
ipa3_ctx->logbuf_low = NULL;
}
+ mutex_unlock(&ipa3_ctx->lock);
return count;
}