user/sven/linux.git, branch v4.18.17

Linux 4.18.17

2018-11-04T13:51:56Z

net: bridge: remove ipv6 zero address check in mcast queries

2018-11-04T13:51:56Z

commit 0fe5119e267f3e3d8ac206895f5922195ec55a8a upstream. Recently a check was added which prevents marking of routers with zero source address, but for IPv6 that cannot happen as the relevant RFCs actually forbid such packets: RFC 2710 (MLDv1): "To be valid, the Query message MUST come from a link-local IPv6 Source Address, be at least 24 octets long, and have a correct MLD checksum." Same goes for RFC 3810. And also it can be seen as a requirement in ipv6_mc_check_mld_query() which is used by the bridge to validate the message before processing it. Thus any queries with :: source address won't be processed anyway. So just remove the check for zero IPv6 source address from the query processing function. Fixes: 5a2de63fd1a5 ("bridge: do not add port to router list when receives query with source 0.0.0.0") Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller Cc: Hangbin Liu Signed-off-by: Greg Kroah-Hartman

sparc: Throttle perf events properly.

2018-11-04T13:51:56Z

[ Upstream commit 455adb3174d2c8518cef1a61140c211f6ac224d2 ] Like x86 and arm, call perf_sample_event_took() in perf event NMI interrupt handler. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc: Fix syscall fallback bugs in VDSO.

2018-11-04T13:51:56Z

[ Upstream commit 776ca1543b5fe673aaf1beb244fcc2429d378083 ] First, the trap number for 32-bit syscalls is 0x10. Also, only negate the return value when syscall error is indicated by the carry bit being set. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc: Fix single-pcr perf event counter management.

2018-11-04T13:51:56Z

[ Upstream commit cfdc3170d214046b9509183fe9b9544dc644d40b ] It is important to clear the hw->state value for non-stopped events when they are added into the PMU. Otherwise when the event is scheduled out, we won't read the counter because HES_UPTODATE is still set. This breaks 'perf stat' and similar use cases, causing all the events to show zero. This worked for multi-pcr because we make explicit sparc_pmu_start() calls in calculate_multiple_pcrs(). calculate_single_pcr() doesn't do this because the idea there is to accumulate all of the counter settings into the single pcr value. So we have to add explicit hw->state handling there. Like x86, we use the PERF_HES_ARCH bit to track truly stopped events so that we don't accidently start them on a reload. Related to all of this, sparc_pmu_start() is missing a userpage update so add it. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc64: Wire up compat getpeername and getsockname.

2018-11-04T13:51:55Z

[ Upstream commit 1f2b5b8e2df4591fbca430aff9c5a072dcc0f408 ] Fixes: 8b30ca73b7cc ("sparc: Add all necessary direct socket system calls.") Reported-by: Joseph Myers Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc64: Set %l4 properly on trap return after handling signals.

2018-11-04T13:51:55Z

[ Upstream commit d1f1f98c6d1708a90436e1a3b2aff5e93946731b ] If we did some signal processing, we have to reload the pt_regs tstate register because it's value may have changed. In doing so we also have to extract the %pil value contained in there anre load that into %l4. This value is at bit 20 and thus needs to be shifted down before we later write it into the %pil register. Most of the time this is harmless as we are returning to userspace and the %pil is zero for that case. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc64: Make proc_id signed.

2018-11-04T13:51:55Z

[ Upstream commit b3e1eb8e7ac9aaa283989496651d99267c4cad6c ] So that when it is unset, ie. '-1', userspace can see it properly. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc64: Make corrupted user stacks more debuggable.

2018-11-04T13:51:55Z

[ Upstream commit 5b4fc3882a649c9411dd0dcad2ddb78e911d340e ] Right now if we get a corrupted user stack frame we do a do_exit(SIGILL) which is not helpful. If under a debugger, this behavior causes the inferior process to exit. So the register and other state cannot be examined at the time of the event. Instead, conditionally log a rate limited kernel log message and then force a SIGSEGV. With bits and ideas borrowed (as usual) from powerpc. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sparc64: Export __node_distance.

2018-11-04T13:51:55Z

[ Upstream commit 2b4792eaa9f553764047d157365ed8b7787751a3 ] Some drivers reference it via node_distance(), for example the NVME host driver core. ERROR: "__node_distance" [drivers/nvme/host/nvme-core.ko] undefined! make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1 Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman