linux-imx/include
Steven Rostedt (Google) 51270d573a tracing/net_sched: Fix tracepoints that save qdisc_dev() as a string
I'm updating __assign_str() and will be removing the second parameter. To
make sure that it does not break anything, I make sure that it matches the
__string() field, as that is where the string is actually going to be
saved in. To make sure there's nothing that breaks, I added a WARN_ON() to
make sure that what was used in __string() is the same that is used in
__assign_str().

In doing this change, an error was triggered as __assign_str() now expects
the string passed in to be a char * value. I instead had the following
warning:

include/trace/events/qdisc.h: In function ‘trace_event_raw_event_qdisc_reset’:
include/trace/events/qdisc.h:91:35: error: passing argument 1 of 'strcmp' from incompatible pointer type [-Werror=incompatible-pointer-types]
   91 |                 __assign_str(dev, qdisc_dev(q));

That's because the qdisc_enqueue() and qdisc_reset() pass in qdisc_dev(q)
to __assign_str() and to __string(). But that function returns a pointer
to struct net_device and not a string.

It appears that these events are just saving the pointer as a string and
then reading it as a string as well.

Use qdisc_dev(q)->name to save the device instead.

Fixes: a34dac0b90 ("net_sched: add tracepoints for qdisc_reset() and qdisc_destroy()")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-04 09:35:54 +00:00
..
acpi IOMMU Updates for Linux v6.8 2024-01-18 15:16:57 -08:00
asm-generic RISC-V Patches for the 6.8 Merge Window, Part 4 2024-01-20 11:06:04 -08:00
clocksource
crypto
drm
dt-bindings dmaengine fixes for v6.8-rc1 2024-01-20 15:03:25 -08:00
keys
kunit
kvm
linux net: bql: fix building with BQL disabled 2024-03-01 08:46:15 +00:00
math-emu
media
memory
misc
net net: bql: fix building with BQL disabled 2024-03-01 08:46:15 +00:00
pcmcia
ras
rdma
rv
scsi scsi: core: Consult supported VPD page list prior to fetching page 2024-02-15 14:41:26 -05:00
soc - New Device Support 2024-01-17 15:21:21 -08:00
sound ASoC: tas2781: add module parameter to tascodec_init() 2024-02-05 14:31:37 +00:00
target
trace tracing/net_sched: Fix tracepoints that save qdisc_dev() as a string 2024-03-04 09:35:54 +00:00
uapi Including fixes from bluetooth, WiFi and netfilter. 2024-02-29 12:40:20 -08:00
ufs
vdso
video
xen