QuiC AMP development
Subsystems (2)
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstream
And for those who missed the original RFC, you can find it here:
http://www.spinics.net/lists/linux-bluetooth/msg04674.html
Signature · 3 lines
Ron Shaffer Employee of the Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
Hi all,
Quoted 6 lines · Ron Shaffer
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstream
I'll put here some comments I have about some L2CAP patches:
+static int l2cap_seq_list_init(struct l2cap_seq_list *seq_list, u16 size) +{
+ u16 allocSize;
No capital letter here. Do alloc_size. Check the rest of your code for similar stuff.
u8 event;
struct sk_buff *skb; };
+
#endif /* __AMP_H */
net/bluetooth/amp.c +1 -0
@@ -40,6 +40,7 @@ static struct workqueue_struct *amp_workqueue;LIST_HEAD (amp_mgr_list);DEFINE_RWLOCK (amp_mgr_list_lock); +static void remove_amp_mgr (struct amp_mgr *rem) {struct amp_mgr *mgr =NULL ;
Do not add new lines random places into your patch. Check you code for others things like that. Also check for lines overstepping the column 80.
+struct l2cap_enhanced_hdr {
+ __le16 len; + __le16 cid; + __le16 control;
+} __attribute__ ((packed));
+#define L2CAP_ENHANCED_HDR_SIZE 6
Get ride off this struct, that actually doesn't help. We tried that before and Marcel and I agreed that it does not help.
- if (memcpy_fromiovec(skb_put(*frag, count), msg->msg_iov, count))
+
+ if (memcpy_fromiovec(skb_put(*frag, count),
+ msg->msg_iov, count))
return -EFAULT;
Avoid changes like that in your patches, you are just breaking a line here. If you want to do that do in a separeted patch.
+/* L2CAP ERTM / Streaming extra field lengths */
+#define L2CAP_FCS_SIZE 2
Separated patch for that, so then you replace 2 for L2CAP_FCS_SIZE in one patch, instead of doing that in many patches like you are doing now. The same goes for L2CAP_SDULEN_SIZE.
-/* L2CAP Supervisory Function */
+/* L2CAP Supervisory Frame Types */
+#define L2CAP_SFRAME_RR 0x00 +#define L2CAP_SFRAME_REJ 0x01 +#define L2CAP_SFRAME_RNR 0x02 +#define L2CAP_SFRAME_SREJ 0x03 #define L2CAP_SUPER_RCV_READY 0x0000 #define L2CAP_SUPER_REJECT 0x0004 #define L2CAP_SUPER_RCV_NOT_READY 0x0008 #define L2CAP_SUPER_SELECT_REJECT 0x000C
/* L2CAP Segmentation and Reassembly */
+#define L2CAP_SAR_UNSEGMENTED 0x00 +#define L2CAP_SAR_START 0x01 +#define L2CAP_SAR_END 0x02 +#define L2CAP_SAR_CONTINUE 0x03 #define L2CAP_SDU_UNSEGMENTED 0x0000 #define L2CAP_SDU_START 0x4000 #define L2CAP_SDU_END 0x8000
What is that? we already have such defines.
commit 162e6de6d5c11b8ffea91a9fa2d597340afdeb6e
Author: Mat Martineau <[email protected]> Date: Thu Aug 5 16:59:46 2010 -0700
Bluetooth: Remove unused L2CAP code.
net/bluetooth/l2cap.c | 1104 +------------------------------------------------ 1 files changed, 15 insertions(+), 1089 deletions(-)
That's not acceptable, we have to modify the existent base code and make it work with the new features, instead writing a new one and then switch to it.
commit 09850f68219572288fe62a59235fda3d2629c7b2
Author: Peter Krystad <[email protected]> Date: Wed Aug 4 16:55:11 2010 -0700
Rename l2cap.c to el2cap.c.
Necessary before additional files can be added to l2cap module. A module cannot contain a file with the same name as the module.
We don't neeed that. We might split l2cap.c into smaller chunks before merge all the AMP stuff into it, so we won't have the module name problem anymore.
Signature · 2 lines
Gustavo F. Padovan http://padovan.org
Gustavo -
Quoted 8 lines · Gustavo F. Padovan
Hi all,
Quoted 4 lines · Ron Shaffer
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
Quoted 5 lines
Quoted 2 lines
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstreamI'll put here some comments I have about some L2CAP patches:
Thanks for taking the time to look over all these changes!
Quoted 8 lines
(quoted diff) +3
-0+static int l2cap_seq_list_init(struct l2cap_seq_list *seq_list, u16 size) +{ + u16 allocSize;No capital letter here. Do
alloc_size. Check the rest of your code for similar stuff.
Yes, someone caught that in our internal code review too. I think this was the only one.
Quoted 20 lines
u8 event; struct sk_buff *skb; };+
#endif /*__AMP_H*/net/bluetooth/amp.c +1
-0@@ -40,6 +40,7 @@ static struct workqueue_struct *amp_workqueue;LIST_HEAD (amp_mgr_list);DEFINE_RWLOCK (amp_mgr_list_lock); +static void remove_amp_mgr (struct amp_mgr *rem) {struct amp_mgr *mgr =NULL ;
Quoted 2 lines
Do not add new lines random places into your patch. Check you code for others things like that. Also check for lines overstepping the column 80.
We definitely know we have work to do to clean up these patches and add proper commit messages. Please be assured that we'll have these more tidied up before posting patches to linux-bluetooth.
Quoted 11 lines
net/bluetooth/amp.c +6
-0+struct l2cap_enhanced_hdr { +__le16 len; +__le16 cid; +__le16 control; +} __attribute__ ((packed)); +#define L2CAP_ENHANCED_HDR_SIZE 6Get ride off this struct, that actually doesn't help. We tried that before and Marcel and I agreed that it does not help.
If you guys don't like it, I'll take it out.
Quoted 15 lines
net/bluetooth/amp.c +3
-1-if (memcpy_fromiovec (skb_put (*frag, count), msg->msg_iov, count)) + +if (memcpy_fromiovec (skb_put (*frag, count), + msg->msg_iov, count))return -EFAULT ;Avoid changes like that in your patches, you are just breaking a line here. If you want to do that do in a separeted patch.
net/bluetooth/amp.c +2
-0+/* L2CAP ERTM / Streaming extra field lengths */ +#define L2CAP_FCS_SIZE 2
Quoted 3 lines
Separated patch for that, so then you replace 2 for
L2CAP_FCS_SIZEin one patch, instead of doing that in many patches like you are doing now. The same goes forL2CAP_SDULEN_SIZE.
Yes, I already split that commit up to send the "RFC" patch set earlier today. Unfortunately I missed that commit when generating my patches :(
Quoted 20 lines
net/bluetooth/amp.c +5
-1-/* L2CAP Supervisory Function */ +/* L2CAP Supervisory Frame Types */ +#define L2CAP_SFRAME_RR 0x00 +#define L2CAP_SFRAME_REJ 0x01 +#define L2CAP_SFRAME_RNR 0x02 +#define L2CAP_SFRAME_SREJ 0x03#define L2CAP_SUPER_RCV_READY 0x0000 #define L2CAP_SUPER_REJECT 0x0004 #define L2CAP_SUPER_RCV_NOT_READY 0x0008 #define L2CAP_SUPER_SELECT_REJECT 0x000C/* L2CAP Segmentation and Reassembly */
net/bluetooth/amp.c +4
-0+#define L2CAP_SAR_UNSEGMENTED 0x00 +#define L2CAP_SAR_START 0x01 +#define L2CAP_SAR_END 0x02 +#define L2CAP_SAR_CONTINUE 0x03#define L2CAP_SDU_UNSEGMENTED 0x0000 #define L2CAP_SDU_START 0x4000 #define L2CAP_SDU_END 0x8000
Quoted 1 line
What is that? we already have such defines.
I was trying to not break existing code, while also creating constants that were useful for modified code that will work with either extended or enhanced headers. The new values are important, but I agree that this is not the way to introduce the changes. See below for more detail.
Quoted 11 lines
commit
162e6de6d5c11b8ffea91a9fa2d597340afdeb6eAuthor: Mat Martineau <[email protected]> Date: Thu Aug 5 16:59:46 2010 -0700Bluetooth: Remove unused L2CAP code.
net/bluetooth/l2cap.c| 1104 +------------------------------------------------1 files changed, 15 insertions(+), 1089 deletions(-)That's not acceptable, we have to modify the existent base code and make it work with the new features, instead writing a new one and then switch to it.
When setting up the commits for this git branch, I had to pick between two approaches:
* Build up a modified state machine in parallel, so the switchover
could happen in one patch. The code would compile and run after every patch.
* Or, start modifying the state machine piece by piece. Until all of
the modifications were done, ERTM would not work.
I don't think my approach worked out well (mostly because it doesn't preserve history adequately, and doesn't make it clear where code has been modified instead of newly written). However, it's what we had to share coming in to the Bluetooth summit, and we felt it was very important to share it. I want to refine the approach to these patches to put them in some acceptable form, so lets talk about the best way to do that.
Quoted 11 lines
commit
09850f68219572288fe62a59235fda3d2629c7b2Author: Peter Krystad <[email protected]> Date: Wed Aug 4 16:55:11 2010 -0700Rename
l2cap.ctoel2cap.c.Necessary before additional files can be added to l2cap module. A module cannot contain a file with the same name as the module.
We don't neeed that. We might split
l2cap.cinto smaller chunks before merge all the AMP stuff into it, so we won't have the module name problem anymore.
There is a technical reason for this. We changed the Makefile to create l2cap.ko from two source files - one for L2CAP and one for AMP. However, the build system fails if you try to link l2cap.c and amp.c in to l2cap.ko. We had to come up with some other name for l2cap.c in order to keep the module name the same. There's probably a better choice than el2cap.c - any suggestions are welcome.
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
Hi Mat,
Quoted 53 lines · Mat Martineau
Gustavo -
Quoted 8 lines · Gustavo F. Padovan
Hi all,
Quoted 4 lines · Ron Shaffer
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
Quoted 5 lines
Quoted 2 lines
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstreamI'll put here some comments I have about some L2CAP patches:
Thanks for taking the time to look over all these changes!
Quoted 8 lines
(quoted diff) +3
-0+static int l2cap_seq_list_init(struct l2cap_seq_list *seq_list, u16 size) +{ + u16 allocSize;No capital letter here. Do
alloc_size. Check the rest of your code for similar stuff.Yes, someone caught that in our internal code review too. I think this was the only one.
Quoted 20 lines
u8 event; struct sk_buff *skb; };+
#endif /*__AMP_H*/net/bluetooth/amp.c +1
-0@@ -40,6 +40,7 @@ static struct workqueue_struct *amp_workqueue;LIST_HEAD (amp_mgr_list);DEFINE_RWLOCK (amp_mgr_list_lock); +static void remove_amp_mgr (struct amp_mgr *rem) {struct amp_mgr *mgr =NULL ;
Quoted 6 lines
Quoted 2 lines
Do not add new lines random places into your patch. Check you code for others things like that. Also check for lines overstepping the column 80.
We definitely know we have work to do to clean up these patches and add proper commit messages. Please be assured that we'll have these more tidied up before posting patches to linux-bluetooth.
;)
Quoted 89 lines
Quoted 10 lines
net/bluetooth/amp.c +6
-0+struct l2cap_enhanced_hdr { +__le16 len; +__le16 cid; +__le16 control; +} __attribute__ ((packed)); +#define L2CAP_ENHANCED_HDR_SIZE 6Quoted 2 lines
Get ride off this struct, that actually doesn't help. We tried that before and Marcel and I agreed that it does not help.
If you guys don't like it, I'll take it out.
Quoted 15 lines
net/bluetooth/amp.c +3
-1-if (memcpy_fromiovec (skb_put (*frag, count), msg->msg_iov, count)) + +if (memcpy_fromiovec (skb_put (*frag, count), + msg->msg_iov, count))return -EFAULT ;Avoid changes like that in your patches, you are just breaking a line here. If you want to do that do in a separeted patch.
net/bluetooth/amp.c +2
-0+/* L2CAP ERTM / Streaming extra field lengths */ +#define L2CAP_FCS_SIZE 2Quoted 3 lines
Separated patch for that, so then you replace 2 for
L2CAP_FCS_SIZEin one patch, instead of doing that in many patches like you are doing now. The same goes forL2CAP_SDULEN_SIZE.Yes, I already split that commit up to send the "RFC" patch set earlier today. Unfortunately I missed that commit when generating my patches :(
Quoted 20 lines
net/bluetooth/amp.c +5
-1-/* L2CAP Supervisory Function */ +/* L2CAP Supervisory Frame Types */ +#define L2CAP_SFRAME_RR 0x00 +#define L2CAP_SFRAME_REJ 0x01 +#define L2CAP_SFRAME_RNR 0x02 +#define L2CAP_SFRAME_SREJ 0x03#define L2CAP_SUPER_RCV_READY 0x0000 #define L2CAP_SUPER_REJECT 0x0004 #define L2CAP_SUPER_RCV_NOT_READY 0x0008 #define L2CAP_SUPER_SELECT_REJECT 0x000C/* L2CAP Segmentation and Reassembly */
net/bluetooth/amp.c +4
-0+#define L2CAP_SAR_UNSEGMENTED 0x00 +#define L2CAP_SAR_START 0x01 +#define L2CAP_SAR_END 0x02 +#define L2CAP_SAR_CONTINUE 0x03#define L2CAP_SDU_UNSEGMENTED 0x0000 #define L2CAP_SDU_START 0x4000 #define L2CAP_SDU_END 0x8000Quoted 1 line
What is that? we already have such defines.
I was trying to not break existing code, while also creating constants that were useful for modified code that will work with either extended or enhanced headers. The new values are important, but I agree that this is not the way to introduce the changes. See below for more detail.
Quoted 11 lines
commit
162e6de6d5c11b8ffea91a9fa2d597340afdeb6eAuthor: Mat Martineau <[email protected]> Date: Thu Aug 5 16:59:46 2010 -0700Bluetooth: Remove unused L2CAP code.
net/bluetooth/l2cap.c| 1104 +------------------------------------------------1 files changed, 15 insertions(+), 1089 deletions(-)That's not acceptable, we have to modify the existent base code and make it work with the new features, instead writing a new one and then switch to it.
When setting up the commits for this git branch, I had to pick between two approaches:
* Build up a modified state machine in parallel, so the switchover
could happen in one patch. The code would compile and run after every patch.* Or, start modifying the state machine piece by piece. Until all
of the modifications were done, ERTM would not work.
Quoted 7 lines
I don't think my approach worked out well (mostly because it doesn't preserve history adequately, and doesn't make it clear where code has been modified instead of newly written). However, it's what we had to share coming in to the Bluetooth summit, and we felt it was very important to share it. I want to refine the approach to these patches to put them in some acceptable form, so lets talk about the best way to do that.
I see. But now that they are public we can talk about and put them in shape for the merge into the mainline.
I think it's possible to add AMP stuff without break ERTM (and we have to take care about that, because now ERTM pass all PTS tests). We can arrange your commits to not break ERTM any time.
Quoted 14 lines
Quoted 6 lines
commit
09850f68219572288fe62a59235fda3d2629c7b2Author: Peter Krystad <[email protected]> Date: Wed Aug 4 16:55:11 2010 -0700Quoted 7 lines
Rename
l2cap.ctoel2cap.c.Necessary before additional files can be added to l2cap module. A module cannot contain a file with the same name as the module.
We don't neeed that. We might split
l2cap.cinto smaller chunks before merge all the AMP stuff into it, so we won't have the module name problem anymore.
Quoted 6 lines
There is a technical reason for this. We changed the
Makefileto create l2cap.ko from two source files - one for L2CAP and one for AMP. However, the build system fails if you try to linkl2cap.candamp.cin to l2cap.ko. We had to come up with some other name forl2cap.cin order to keep the module name the same. There's probably a better choice thanel2cap.c- any suggestions are welcome.
Yeah, I know, that's why the l2cap.c split will help this. Marcel told that on the meeting Sunday.
Signature · 2 lines
Gustavo F. Padovan http://padovan.org
Hi Shaffer/Peter
static inline int send_a2mp_cmd(struct amp_mgr *mgr, u8 ident, u8
code, u16 len, void *data) {
struct a2mp_cmd_hdr *hdr;
int plen;
u8 *buf;
BT_DBG("ident %d code %d", ident, code);
plen = sizeof(*hdr) + len;
buf = kzalloc(plen, GFP_ATOMIC);
if (!buf)
return -ENOMEM;
hdr = (struct a2mp_cmd_hdr *) buf;
hdr->code = code;
hdr->ident = ident;
hdr->len = cpu_to_le16(len);
buf += sizeof(*hdr);
memcpy(buf, data, len);
return send_a2mp(mgr->a2mp_sock, (u8 *) hdr, plen);
}I see that here have a malloc, but i don't see free, doesn't it cause memleak?
Regards
sober
Quoted 214 lines · Gustavo F. Padovan
Hi Mat,
Quoted 55 lines · Mat Martineau
Gustavo -
Quoted 8 lines · Gustavo F. Padovan
Hi all,
Quoted 4 lines · Ron Shaffer
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
Quoted 5 lines
Quoted 2 lines
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstreamI'll put here some comments I have about some L2CAP patches:
Thanks for taking the time to look over all these changes!
Quoted 10 lines
+static int
l2cap_seq_list_init(struct l2cap_seq_list *seq_list, u16 size)(quoted diff) +2
-0+{ + u16 allocSize;No capital letter here. Do
alloc_size. Check the rest of your code for similar
stuff.Yes, someone caught that in our internal code review too. I think this was the only one.
Quoted 20 lines
u8 event; struct sk_buff *skb; };+
#endif /*__AMP_H*/net/bluetooth/amp.c +1
-0@@ -40,6 +40,7 @@ static struct workqueue_struct *amp_workqueue;LIST_HEAD (amp_mgr_list);DEFINE_RWLOCK (amp_mgr_list_lock); +static void remove_amp_mgr (struct amp_mgr *rem) {struct amp_mgr *mgr =NULL ;Quoted 7 lines
Quoted 3 lines
Do not add new lines random places into your patch. Check you code for others
things like that. Also check for lines overstepping the column 80.We definitely know we have work to do to clean up these patches and add proper commit messages. Please be assured that we'll have these more tidied up before posting patches to linux-bluetooth.
;)
Quoted 96 lines
Quoted 10 lines
net/bluetooth/amp.c +6
-0+struct l2cap_enhanced_hdr { +__le16 len; +__le16 cid; +__le16 control; +} __attribute__ ((packed)); +#define L2CAP_ENHANCED_HDR_SIZE 6Quoted 3 lines
Get ride off this struct, that actually doesn't help. We tried that before and
Marcel and I agreed that it does not help.If you guys don't like it, I'll take it out.
Quoted 17 lines
- if (memcpy_fromiovec(skb_put(*frag, count),
msg->msg_iov,
count))net/bluetooth/amp.c +3
-0+ +if (memcpy_fromiovec (skb_put (*frag, count), + msg->msg_iov, count))return -EFAULT ;Avoid changes like that in your patches, you are just breaking a line here. If
you want to do that do in a separeted patch.net/bluetooth/amp.c +2
-0+/* L2CAP ERTM / Streaming extra field lengths */ +#define L2CAP_FCS_SIZE 2Quoted 4 lines
Separated patch for that, so then you replace 2 for
L2CAP_FCS_SIZEin one patch, instead of doing that in many patches like you are doing now. The same
goes forL2CAP_SDULEN_SIZE.Yes, I already split that commit up to send the "RFC" patch set earlier today. Unfortunately I missed that commit when generating my patches :(
Quoted 20 lines
net/bluetooth/amp.c +5
-1-/* L2CAP Supervisory Function */ +/* L2CAP Supervisory Frame Types */ +#define L2CAP_SFRAME_RR 0x00 +#define L2CAP_SFRAME_REJ 0x01 +#define L2CAP_SFRAME_RNR 0x02 +#define L2CAP_SFRAME_SREJ 0x03#define L2CAP_SUPER_RCV_READY 0x0000 #define L2CAP_SUPER_REJECT 0x0004 #define L2CAP_SUPER_RCV_NOT_READY 0x0008 #define L2CAP_SUPER_SELECT_REJECT 0x000C/* L2CAP Segmentation and Reassembly */
net/bluetooth/amp.c +4
-0+#define L2CAP_SAR_UNSEGMENTED 0x00 +#define L2CAP_SAR_START 0x01 +#define L2CAP_SAR_END 0x02 +#define L2CAP_SAR_CONTINUE 0x03#define L2CAP_SDU_UNSEGMENTED 0x0000 #define L2CAP_SDU_START 0x4000 #define L2CAP_SDU_END 0x8000Quoted 1 line
What is that? we already have such defines.
I was trying to not break existing code, while also creating constants that were useful for modified code that will work with either extended or enhanced headers. The new values are important, but I agree that this is not the way to introduce the changes. See below for more detail.
Quoted 6 lines
commit
162e6de6d5c11b8ffea91a9fa2d597340afdeb6eAuthor: Mat Martineau <[email protected]> Date: Thu Aug 5 16:59:46 2010 -0700Bluetooth: Remove unused L2CAP code.
Quoted 8 lines
net/bluetooth/l2cap.c| 1104
+------------------------------------------------1 files changed, 15 insertions(+), 1089 deletions(-)That's not acceptable, we have to modify the existent base code and make it
work with the new features, instead writing a new one and then switch to it.When setting up the commits for this git branch, I had to pick between two approaches:
* Build up a modified state machine in parallel, so the switchover
could happen in one patch. The code would compile and run after every patch.* Or, start modifying the state machine piece by piece. Until all
of the modifications were done, ERTM would not work.Quoted 7 lines
I don't think my approach worked out well (mostly because it doesn't preserve history adequately, and doesn't make it clear where code has been modified instead of newly written). However, it's what we had to share coming in to the Bluetooth summit, and we felt it was very important to share it. I want to refine the approach to these patches to put them in some acceptable form, so lets talk about the best way to do that.
I see. But now that they are public we can talk about and put them in shape for the merge into the mainline.
I think it's possible to add AMP stuff without break ERTM (and we have to take care about that, because now ERTM pass all PTS tests). We can arrange your commits to not break ERTM any time.Quoted 16 lines
Quoted 8 lines
commit
09850f68219572288fe62a59235fda3d2629c7b2Author: Peter Krystad <[email protected]> Date: Wed Aug 4 16:55:11 2010 -0700Rename
l2cap.ctoel2cap.c.Quoted 7 lines
Necessary before additional files can be added to l2cap module. A module cannot contain a file with the same name as the module.
We don't neeed that. We might split
l2cap.cinto smaller chunks before merge
all the AMP stuff into it, so we won't have the module name problem anymore.Quoted 6 lines
There is a technical reason for this. We changed the
Makefileto create l2cap.ko from two source files - one for L2CAP and one for AMP. However, the build system fails if you try to linkl2cap.candamp.cin to l2cap.ko. We had to come up with some other name forl2cap.cin order to keep the module name the same. There's probably a better choice thanel2cap.c- any suggestions are welcome.Yeah, I know, that's why the
l2cap.csplit will help this. Marcel told that on the meeting Sunday.--
Gustavo F. Padovan
http://padovan.org
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Hi Sober,
Be careful not to top-post on this mailing list.
Quoted 22 lines
Hi Shaffer/Peter
static inline int send_a2mp_cmd(struct
amp_mgr*mgr, u8 ident, u8code, u16 len, void *data) { struct a2mp_cmd_hdr *hdr; int plen; u8 *buf; BT_DBG("ident %d code %d", ident, code); plen = sizeof(*hdr) + len; buf = kzalloc(plen, GFP_ATOMIC); if (!buf) return -ENOMEM; hdr = (struct a2mp_cmd_hdr *) buf; hdr->code = code; hdr->ident = ident; hdr->len = cpu_to_le16(len); buf += sizeof(*hdr); memcpy(buf, data, len); return send_a2mp(mgr->a2mp_sock, (u8 *) hdr, plen); }
Quoted 3 lines
I see that here have a malloc, but i don't see free, doesn't it cause memleak?
Looks like it, thanks. As Mat and I explained to Kevin and Dan at the mini-summit the git repo we posted is a snapshot of our development tree, and was provided so interested parties could review our approach. As we post patches to the mailing list your review will be much appreciated.
Quoted 16 lines
Regards
soberQuoted 11 lines
Quoted 11 lines
Quoted 11 lines · Ron Shaffer
Quoted 7 lines
As requested in today's summit discussions, here's a link that can be used to inspect the code we've done to add AMP support on the latest next tree.
https://www.codeaurora.org/gitweb/quic/bluetooth/?p=bluetooth-next-2.6.git;a=summary
branch pk-upstream
Peter.
Signature · 4 lines
Peter Krystad Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum