diff options
author | Takashi Iwai <tiwai@suse.de> | 2016-09-30 18:40:40 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2016-09-30 18:40:40 +0200 |
commit | eeea8b40cd2866ca24f25e5ef09225edb076ae45 (patch) | |
tree | ece5b5287ee2ce53a841b66d0f526947f74d036f /arch/x86/events/intel/pt.c | |
parent | 3383c5c395386ac8e258b1a324c72ce850b84a9e (diff) | |
parent | 513e43efafe329dad7b5794583b67ac898dcbdca (diff) |
Merge tag 'asoc-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-nextsound-4.9-rc1
ASoC: Updates for v4.9
Apart from the cleanups done by Morimoto-san this has very much been a
driver focused release with very little generic change:
- A big factoring out of the simple-card code to allow it to be shared
more with the rcar generic card from Kuninori Morimoto.
- Removal of some operations duplicated on the CODEC level, again by
Kuninori Morimoto.
- Lots more machine support for x86 systems.
- New drivers for Nuvoton NAU88C10, Realtek RT5660 and RT5663.
Diffstat (limited to 'arch/x86/events/intel/pt.c')
-rw-r--r-- | arch/x86/events/intel/pt.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index 04bb5fb5a8d7..861a7d9cb60f 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -1074,6 +1074,11 @@ static void pt_addr_filters_fini(struct perf_event *event) event->hw.addr_filters = NULL; } +static inline bool valid_kernel_ip(unsigned long ip) +{ + return virt_addr_valid(ip) && kernel_ip(ip); +} + static int pt_event_addr_filters_validate(struct list_head *filters) { struct perf_addr_filter *filter; @@ -1081,11 +1086,16 @@ static int pt_event_addr_filters_validate(struct list_head *filters) list_for_each_entry(filter, filters, entry) { /* PT doesn't support single address triggers */ - if (!filter->range) + if (!filter->range || !filter->size) return -EOPNOTSUPP; - if (!filter->inode && !kernel_ip(filter->offset)) - return -EINVAL; + if (!filter->inode) { + if (!valid_kernel_ip(filter->offset)) + return -EINVAL; + + if (!valid_kernel_ip(filter->offset + filter->size)) + return -EINVAL; + } if (++range > pt_cap_get(PT_CAP_num_address_ranges)) return -EOPNOTSUPP; @@ -1111,7 +1121,7 @@ static void pt_event_addr_filters_sync(struct perf_event *event) } else { /* apply the offset */ msr_a = filter->offset + offs[range]; - msr_b = filter->size + msr_a; + msr_b = filter->size + msr_a - 1; } filters->filter[range].msr_a = msr_a; |