@@ -3171,13 +3171,12 @@ union bpf_attr {
* int bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags)
* Description
* Copy *size* bytes from *data* into a ring buffer *ringbuf*.
- * If BPF_RB_NO_WAKEUP is specified in *flags*, no notification of
- * new data availability is sent.
- * IF BPF_RB_FORCE_WAKEUP is specified in *flags*, notification of
- * new data availability is sent unconditionally.
+ * If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification
+ * of new data availability is sent.
+ * If **BPF_RB_FORCE_WAKEUP** is specified in *flags*, notification
+ * of new data availability is sent unconditionally.
* Return
- * 0, on success;
- * < 0, on error.
+ * 0 on success, or a negative error in case of failure.
*
* void *bpf_ringbuf_reserve(void *ringbuf, u64 size, u64 flags)
* Description
@@ -3189,20 +3188,20 @@ union bpf_attr {
* void bpf_ringbuf_submit(void *data, u64 flags)
* Description
* Submit reserved ring buffer sample, pointed to by *data*.
- * If BPF_RB_NO_WAKEUP is specified in *flags*, no notification of
- * new data availability is sent.
- * IF BPF_RB_FORCE_WAKEUP is specified in *flags*, notification of
- * new data availability is sent unconditionally.
+ * If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification
+ * of new data availability is sent.
+ * If **BPF_RB_FORCE_WAKEUP** is specified in *flags*, notification
+ * of new data availability is sent unconditionally.
* Return
* Nothing. Always succeeds.
*
* void bpf_ringbuf_discard(void *data, u64 flags)
* Description
* Discard reserved ring buffer sample, pointed to by *data*.
- * If BPF_RB_NO_WAKEUP is specified in *flags*, no notification of
- * new data availability is sent.
- * IF BPF_RB_FORCE_WAKEUP is specified in *flags*, notification of
- * new data availability is sent unconditionally.
+ * If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification
+ * of new data availability is sent.
+ * If **BPF_RB_FORCE_WAKEUP** is specified in *flags*, notification
+ * of new data availability is sent unconditionally.
* Return
* Nothing. Always succeeds.
*
@@ -3210,16 +3209,18 @@ union bpf_attr {
* Description
* Query various characteristics of provided ring buffer. What
* exactly is queries is determined by *flags*:
- * - BPF_RB_AVAIL_DATA - amount of data not yet consumed;
- * - BPF_RB_RING_SIZE - the size of ring buffer;
- * - BPF_RB_CONS_POS - consumer position (can wrap around);
- * - BPF_RB_PROD_POS - producer(s) position (can wrap around);
- * Data returned is just a momentary snapshots of actual values
+ *
+ * * **BPF_RB_AVAIL_DATA**: Amount of data not yet consumed.
+ * * **BPF_RB_RING_SIZE**: The size of ring buffer.
+ * * **BPF_RB_CONS_POS**: Consumer position (can wrap around).
+ * * **BPF_RB_PROD_POS**: Producer(s) position (can wrap around).
+ *
+ * Data returned is just a momentary snapshot of actual values
* and could be inaccurate, so this facility should be used to
* power heuristics and for reporting, not to make 100% correct
* calculation.
* Return
- * Requested value, or 0, if flags are not recognized.
+ * Requested value, or 0, if *flags* are not recognized.
*
* int bpf_csum_level(struct sk_buff *skb, u64 level)
* Description
When producing the bpf-helpers.7 man page from the documentation from the BPF user space header file, rst2man complains: <stdin>:2636: (ERROR/3) Unexpected indentation. <stdin>:2640: (WARNING/2) Block quote ends without a blank line; unexpected unindent. Let's fix formatting for the relevant chunk (item list in bpf_ringbuf_query()'s description), and for a couple other functions. Signed-off-by: Quentin Monnet <quentin@isovalent.com> --- include/uapi/linux/bpf.h | 41 ++++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 20 deletions(-)