Commit graph

932,869 commits

Author SHA1 Message Date
Andrii Nakryiko
e01a75c159 libbpf: Move bpf_{helpers, helper_defs, endian, tracing}.h into libbpf
Move bpf_helpers.h, bpf_tracing.h, and bpf_endian.h into libbpf. Move
bpf_helper_defs.h generation into libbpf's Makefile. Ensure all those
headers are installed along the other libbpf headers. Also, adjust
selftests and samples include path to include libbpf now.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-6-andriin@fb.com
2019-10-08 23:16:03 +02:00
Andrii Nakryiko
3ac4dbe3dd selftests/bpf: Split off tracing-only helpers into bpf_tracing.h
Split-off PT_REGS-related helpers into bpf_tracing.h header. Adjust
selftests and samples to include it where necessary.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-5-andriin@fb.com
2019-10-08 23:16:03 +02:00
Andrii Nakryiko
694731e8ea selftests/bpf: Adjust CO-RE reloc tests for new bpf_core_read() macro
To allow adding a variadic BPF_CORE_READ macro with slightly different
syntax and semantics, define CORE_READ in CO-RE reloc tests, which is
a thin wrapper around low-level bpf_core_read() macro, which in turn is
just a wrapper around bpf_probe_read().

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-4-andriin@fb.com
2019-10-08 23:16:03 +02:00
Andrii Nakryiko
36b5d47113 selftests/bpf: samples/bpf: Split off legacy stuff from bpf_helpers.h
Split off few legacy things from bpf_helpers.h into separate
bpf_legacy.h file:
- load_{byte|half|word};
- remove extra inner_idx and numa_node fields from bpf_map_def and
  introduce bpf_map_def_legacy for use in samples;
- move BPF_ANNOTATE_KV_PAIR into bpf_legacy.h.

Adjust samples and selftests accordingly by either including
bpf_legacy.h and using bpf_map_def_legacy, or switching to BTF-defined
maps altogether.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-3-andriin@fb.com
2019-10-08 23:16:03 +02:00
Andrii Nakryiko
cf0e9718da selftests/bpf: Undo GCC-specific bpf_helpers.h changes
Having GCC provide its own bpf-helper.h is not the right approach and is
going to be changed. Undo bpf_helpers.h change before moving
bpf_helpers.h into libbpf.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-2-andriin@fb.com
2019-10-08 23:16:03 +02:00
Jakub Kicinski
38dc3b5f56 Merge branch 'llc-fix-sk_buff-refcounting'
Eric Biggers says:

====================
Patches 1-2 fix the memory leaks that syzbot has reported in net/llc:

	memory leak in llc_ui_create (2)
	memory leak in llc_ui_sendmsg
	memory leak in llc_conn_ac_send_sabme_cmd_p_set_x

Patches 3-4 fix related bugs that I noticed while reading this code.

Note: I've tested that this fixes the syzbot bugs, but otherwise I don't
know of any way to test this code.
====================

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 14:11:45 -07:00
Lihua Yao
d60d0cff4a ARM: dts: s3c64xx: Fix init order of clock providers
fin_pll is the parent of clock-controller@7e00f000, specify
the dependency to ensure proper initialization order of clock
providers.

without this patch:
[    0.000000] S3C6410 clocks: apll = 0, mpll = 0
[    0.000000]  epll = 0, arm_clk = 0

with this patch:
[    0.000000] S3C6410 clocks: apll = 532000000, mpll = 532000000
[    0.000000]  epll = 24000000, arm_clk = 532000000

Cc: <stable@vger.kernel.org>
Fixes: 3f6d439f20 ("clk: reverse default clk provider initialization order in of_clk_init()")
Signed-off-by: Lihua Yao <ylhuajnu@outlook.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-08 22:45:20 +02:00
Eric Biggers
36453c8528 llc: fix sk_buff refcounting in llc_conn_state_process()
If llc_conn_state_process() sees that llc_conn_service() put the skb on
a list, it will drop one fewer references to it.  This is wrong because
the current behavior is that llc_conn_service() never consumes a
reference to the skb.

The code also makes the number of skb references being dropped
conditional on which of ind_prim and cfm_prim are nonzero, yet neither
of these affects how many references are *acquired*.  So there is extra
code that tries to fix this up by sometimes taking another reference.

Remove the unnecessary/broken refcounting logic and instead just add an
skb_get() before the only two places where an extra reference is
actually consumed.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 13:23:05 -07:00
Eric Biggers
fc8d5db10c llc: fix another potential sk_buff leak in llc_ui_sendmsg()
All callers of llc_conn_state_process() except llc_build_and_send_pkt()
(via llc_ui_sendmsg() -> llc_ui_send_data()) assume that it always
consumes a reference to the skb.  Fix this caller to do the same.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 13:23:05 -07:00
Eric Biggers
b74555de21 llc: fix sk_buff leak in llc_conn_service()
syzbot reported:

    BUG: memory leak
    unreferenced object 0xffff88811eb3de00 (size 224):
       comm "syz-executor559", pid 7315, jiffies 4294943019 (age 10.300s)
       hex dump (first 32 bytes):
         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
         00 a0 38 24 81 88 ff ff 00 c0 f2 15 81 88 ff ff  ..8$............
       backtrace:
         [<000000008d1c66a1>] kmemleak_alloc_recursive  include/linux/kmemleak.h:55 [inline]
         [<000000008d1c66a1>] slab_post_alloc_hook mm/slab.h:439 [inline]
         [<000000008d1c66a1>] slab_alloc_node mm/slab.c:3269 [inline]
         [<000000008d1c66a1>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
         [<00000000447d9496>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:198
         [<000000000cdbf82f>] alloc_skb include/linux/skbuff.h:1058 [inline]
         [<000000000cdbf82f>] llc_alloc_frame+0x66/0x110 net/llc/llc_sap.c:54
         [<000000002418b52e>] llc_conn_ac_send_sabme_cmd_p_set_x+0x2f/0x140  net/llc/llc_c_ac.c:777
         [<000000001372ae17>] llc_exec_conn_trans_actions net/llc/llc_conn.c:475  [inline]
         [<000000001372ae17>] llc_conn_service net/llc/llc_conn.c:400 [inline]
         [<000000001372ae17>] llc_conn_state_process+0x1ac/0x640  net/llc/llc_conn.c:75
         [<00000000f27e53c1>] llc_establish_connection+0x110/0x170  net/llc/llc_if.c:109
         [<00000000291b2ca0>] llc_ui_connect+0x10e/0x370 net/llc/af_llc.c:477
         [<000000000f9c740b>] __sys_connect+0x11d/0x170 net/socket.c:1840
         [...]

The bug is that most callers of llc_conn_send_pdu() assume it consumes a
reference to the skb, when actually due to commit b85ab56c3f ("llc:
properly handle dev_queue_xmit() return value") it doesn't.

Revert most of that commit, and instead make the few places that need
llc_conn_send_pdu() to *not* consume a reference call skb_get() before.

Fixes: b85ab56c3f ("llc: properly handle dev_queue_xmit() return value")
Reported-by: syzbot+6b825a6494a04cc0e3f7@syzkaller.appspotmail.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 13:23:05 -07:00
Eric Biggers
c6ee11c39f llc: fix sk_buff leak in llc_sap_state_process()
syzbot reported:

    BUG: memory leak
    unreferenced object 0xffff888116270800 (size 224):
       comm "syz-executor641", pid 7047, jiffies 4294947360 (age 13.860s)
       hex dump (first 32 bytes):
         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
         00 20 e1 2a 81 88 ff ff 00 40 3d 2a 81 88 ff ff  . .*.....@=*....
       backtrace:
         [<000000004d41b4cc>] kmemleak_alloc_recursive  include/linux/kmemleak.h:55 [inline]
         [<000000004d41b4cc>] slab_post_alloc_hook mm/slab.h:439 [inline]
         [<000000004d41b4cc>] slab_alloc_node mm/slab.c:3269 [inline]
         [<000000004d41b4cc>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
         [<00000000506a5965>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:198
         [<000000001ba5a161>] alloc_skb include/linux/skbuff.h:1058 [inline]
         [<000000001ba5a161>] alloc_skb_with_frags+0x5f/0x250  net/core/skbuff.c:5327
         [<0000000047d9c78b>] sock_alloc_send_pskb+0x269/0x2a0  net/core/sock.c:2225
         [<000000003828fe54>] sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2242
         [<00000000e34d94f9>] llc_ui_sendmsg+0x10a/0x540 net/llc/af_llc.c:933
         [<00000000de2de3fb>] sock_sendmsg_nosec net/socket.c:652 [inline]
         [<00000000de2de3fb>] sock_sendmsg+0x54/0x70 net/socket.c:671
         [<000000008fe16e7a>] __sys_sendto+0x148/0x1f0 net/socket.c:1964
	 [...]

The bug is that llc_sap_state_process() always takes an extra reference
to the skb, but sometimes neither llc_sap_next_state() nor
llc_sap_state_process() itself drops this reference.

Fix it by changing llc_sap_next_state() to never consume a reference to
the skb, rather than sometimes do so and sometimes not.  Then remove the
extra skb_get() and kfree_skb() from llc_sap_state_process().

Reported-by: syzbot+6bf095f9becf5efef645@syzkaller.appspotmail.com
Reported-by: syzbot+31c16aa4202dace3812e@syzkaller.appspotmail.com
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 13:23:05 -07:00
Pavel Machek
4050d21d20 Add my linux-leds branch to MAINTAINERS
Add pointer to my git tree to MAINTAINERS. I'd like to maintain
linux-leds for-next branch for 5.5.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-10-08 22:09:08 +02:00
Eric Dumazet
11fc7d5a0a tun: fix memory leak in error path
syzbot reported a warning [1] that triggered after recent Jiri patch.

This exposes a bug that we hit already in the past (see commit
ff244c6b29 ("tun: handle register_netdevice() failures properly")
for details)

tun uses priv->destructor without an ndo_init() method.

register_netdevice() can return an error, but will
not call priv->destructor() in some cases. Jiri recent
patch added one more.

A long term fix would be to transfer the initialization
of what we destroy in ->destructor() in the ndo_init()

This looks a bit risky given the complexity of tun driver.

A simpler fix is to detect after the failed register_netdevice()
if the tun_free_netdev() function was called already.

[1]
ODEBUG: free active (active state 0) object type: timer_list hint: tun_flow_cleanup+0x0/0x280 drivers/net/tun.c:457
WARNING: CPU: 0 PID: 8653 at lib/debugobjects.c:481 debug_print_object+0x168/0x250 lib/debugobjects.c:481
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8653 Comm: syz-executor976 Not tainted 5.4.0-rc1-next-20191004 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2dc/0x755 kernel/panic.c:220
 __warn.cold+0x2f/0x3c kernel/panic.c:581
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:481
Code: dd 80 b9 e6 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 80 b9 e6 87 48 c7 c7 e0 ae e6 87 e8 80 84 ff fd <0f> 0b 83 05 e3 ee 80 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff888095997a28 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815cb526 RDI: ffffed1012b32f37
RBP: ffff888095997a68 R08: ffff8880a92ac580 R09: ffffed1015d04101
R10: ffffed1015d04100 R11: ffff8880ae820807 R12: 0000000000000001
R13: ffffffff88fb5340 R14: ffffffff81627110 R15: ffff8880aa41eab8
 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline]
 debug_check_no_obj_freed+0x2d4/0x43f lib/debugobjects.c:994
 kfree+0xf8/0x2c0 mm/slab.c:3755
 kvfree+0x61/0x70 mm/util.c:593
 netdev_freemem net/core/dev.c:9384 [inline]
 free_netdev+0x39d/0x450 net/core/dev.c:9533
 tun_set_iff drivers/net/tun.c:2871 [inline]
 __tun_chr_ioctl+0x317b/0x3f30 drivers/net/tun.c:3075
 tun_chr_ioctl+0x2b/0x40 drivers/net/tun.c:3355
 vfs_ioctl fs/ioctl.c:47 [inline]
 file_ioctl fs/ioctl.c:539 [inline]
 do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:726
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:743
 __do_sys_ioctl fs/ioctl.c:750 [inline]
 __se_sys_ioctl fs/ioctl.c:748 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:748
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441439
Code: e8 9c ae 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff61c37438 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441439
RDX: 0000000020000400 RSI: 00000000400454ca RDI: 0000000000000004
RBP: 00007fff61c37470 R08: 0000000000000001 R09: 0000000100000000
R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff
R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Fixes: ff92741270 ("net: introduce name_node struct to be used in hashlist")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 13:06:11 -07:00
Dan Murphy
e3f1271474 leds: core: Fix leds.h structure documentation
Update the leds.h structure documentation to define the
correct arguments.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-10-08 22:05:58 +02:00
Chuck Lever
832b2cb955 svcrdma: Improve DMA mapping trace points
Capture the total size of Sends, the size of DMA map and the
matching DMA unmap to ensure operation is correct.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-10-08 16:01:33 -04:00
J. Bruce Fields
c4b77edb3f nfsd: "\%s" should be "%s"
Randy says:
> sparse complains about these, as does gcc when used with --pedantic.
> sparse says:
>
> ../fs/nfsd/nfs4state.c:2385:23: warning: unknown escape sequence: '\%'
> ../fs/nfsd/nfs4state.c:2385:23: warning: unknown escape sequence: '\%'
> ../fs/nfsd/nfs4state.c:2388:23: warning: unknown escape sequence: '\%'
> ../fs/nfsd/nfs4state.c:2388:23: warning: unknown escape sequence: '\%'

I'm not sure how this crept in.  Fix it.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-10-08 16:01:33 -04:00
YueHaibing
19a1aad888 nfsd: remove set but not used variable 'len'
Fixes gcc '-Wunused-but-set-variable' warning:

fs/nfsd/nfs4xdr.c: In function nfsd4_encode_splice_read:
fs/nfsd/nfs4xdr.c:3464:7: warning: variable len set but not used [-Wunused-but-set-variable]

It is not used since commit 83a63072c8 ("nfsd: fix nfs read eof detection")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-10-08 16:01:33 -04:00
Matthew Auld
7c98501acb drm/i915/region: support volatile objects
Volatile objects are marked as DONTNEED while pinned, therefore once
unpinned the backing store can be discarded. This is limited to kernel
internal objects.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: CQ Tang <cq.tang@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-4-matthew.auld@intel.com
2019-10-08 20:50:01 +01:00
Matthew Auld
2f0b97ca02 drm/i915/region: support contiguous allocations
Some kernel internal objects may need to be allocated as a contiguous
block, also thinking ahead the various kernel io_mapping interfaces seem
to expect it, although this is purely a limitation in the kernel
API...so perhaps something to be improved.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Cc: Michael J Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-3-matthew.auld@intel.com
2019-10-08 20:50:01 +01:00
Matthew Auld
232a6ebae4 drm/i915: introduce intel_memory_region
Support memory regions, as defined by a given (start, end), and allow
creating GEM objects which are backed by said region. The immediate goal
here is to have something to represent our device memory, but later on
we also want to represent every memory domain with a region, so stolen,
shmem, and of course device. At some point we are probably going to want
use a common struct here, such that we are better aligned with say TTM.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008160116.18379-2-matthew.auld@intel.com
2019-10-08 20:49:55 +01:00
Parav Pandit
03232cc43c IB/mlx5: Introduce and use mkey context setting helper routine
Introduce and use set_mkc_access_pd_addr_fields() which sets mkey
context's access rights, PD, address fields.  Thereby avoid the code
duplication.

Link: https://lore.kernel.org/r/20191006155443.31068-1-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-08 16:45:07 -03:00
Max Gurtovoy
3466c060ef RDMA/iser: Use iser_err instead of pr_err for logging
Make sure all the debug prints in ib_iser module use the common driver
logger.

Link: https://lore.kernel.org/r/1570366580-24097-1-git-send-email-maxg@mellanox.com
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-08 16:35:52 -03:00
Devesh Sharma
39c48c5146 RDMA/bnxt_re: Enable SRIOV VF support on Broadcom's 57500 adapter series
Broadcom's 575xx adapter series has support for SRIOV VFs.  Making changes
to enable SRIOV VF support. There are two major area where changes are
done:

 - Added new DB location for control-path and data-path DB ring

 - New devices do not need to issue the sriov-config slow-path command
   thus, skipping to call that firmware command.

For now enabling support for 64 RoCE VFs.

Link: https://lore.kernel.org/r/1570081715-14301-1-git-send-email-devesh.sharma@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-08 16:22:24 -03:00
Rob Herring
645c138636 of/address: Fix of_pci_range_parser_one translation of DMA addresses
of_pci_range_parser_one() has a bug when parsing dma-ranges. When it
translates the parent address (aka cpu address in the code), 'ranges' is
always being used. This happens to work because most users are just 1:1
translation.

Cc: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:55:26 -05:00
Rob Herring
81db12ee15 of/address: Translate 'dma-ranges' for parent nodes missing 'dma-ranges'
'dma-ranges' frequently exists without parent nodes having 'dma-ranges'.
While this is an error for 'ranges', this is fine because DMA capable
devices always have a translatable DMA address. Also, with no
'dma-ranges' at all, the assumption is that DMA addresses are 1:1 with
no restrictions unless perhaps the device itself has implicit
restrictions.

Cc: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:55:26 -05:00
Rob Herring
04db93a95a of/unittest: Add dma-ranges address translation tests
The functions for parsing 'dma-ranges' ranges are buggy and fail to
handle several conditions. Add new tests for of_dma_get_range() and
for_each_of_pci_range().

With this test, we get 5 new failures which are fixed in subsequent
commits:

OF: translation of DMA address(0) to CPU address failed node(/testcase-data/address-tests/device@70000000)
FAIL of_unittest_dma_ranges_one():798 of_dma_get_range failed on node /testcase-data/address-tests/device@70000000 rc=-22
OF: translation of DMA address(10000000) to CPU address failed node(/testcase-data/address-tests/bus@80000000/device@1000)
FAIL of_unittest_dma_ranges_one():798 of_dma_get_range failed on node /testcase-data/address-tests/bus@80000000/device@1000 rc=-22
OF: translation of DMA address(0) to CPU address failed node(/testcase-data/address-tests/pci@90000000)
FAIL of_unittest_dma_ranges_one():798 of_dma_get_range failed on node /testcase-data/address-tests/pci@90000000 rc=-22
FAIL of_unittest_pci_dma_ranges():851 for_each_of_pci_range wrong CPU addr (d0000000) on node /testcase-data/address-tests/pci@90000000
FAIL of_unittest_pci_dma_ranges():861 for_each_of_pci_range wrong CPU addr (ffffffffffffffff) on node /testcase-data/address-tests/pci@90000000

Cc: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:55:26 -05:00
Robin Murphy
b68ac8dc22 of: Factor out #{addr,size}-cells parsing
In some cases such as PCI host controllers, we may have a "parent bus"
which is an OF leaf node, but still need to correctly parse ranges from
the point of view of that bus. For that, factor out variants of the
"#addr-cells" and "#size-cells" parsers which do not assume they have a
device node and thus immediately traverse upwards before reading the
relevant property.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[robh: don't make of_bus_n_{addr,size}_cells() public]
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Robin Murphy
c60bf3eb88 of: address: Follow DMA parent for "dma-coherent"
Much like for address translation, when checking for DMA coherence we
should be sure to walk up the DMA hierarchy, rather than the MMIO one,
now that we can accommodate them being different.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Robin Murphy
862ab5578f of/address: Introduce of_get_next_dma_parent() helper
Add of_get_next_dma_parent() helper which is similar to
__of_get_dma_parent(), but can be used in iterators and decrements the
ref count on the prior parent.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Robin Murphy
76dd7068e3 of: address: Report of_dma_get_range() errors meaningfully
If we failed to translate a DMA address, at least show the offending
address rather than the uninitialised contents of the destination
argument.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Rob Herring
6e6faf6374 of: Make of_dma_get_range() private
of_dma_get_range() is only used within the DT core code, so remove the
export and move the header declaration to the private header.

Cc: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Rob Herring
3a9ac959ba of: Remove unused of_find_matching_node_by_address()
of_find_matching_node_by_address() is unused, so remove it.

Cc: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-08 13:50:22 -05:00
Colin Ian King
f9867b51d2 netdevsim: fix spelling mistake "forbidded" -> "forbid"
There is a spelling mistake in a NL_SET_ERR_MSG_MOD message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 11:47:54 -07:00
Colin Ian King
c4256794df net: phy: mscc: make arrays static, makes object smaller
Don't populate const arrays on the stack but instead make them
static. Makes the object code smaller by 1058 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  29879	   6144	      0	  36023	   8cb7	drivers/net/phy/mscc.o

After:
   text	   data	    bss	    dec	    hex	filename
  28437	   6528	      0	  34965	   8895	drivers/net/phy/mscc.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 11:47:41 -07:00
Colin Ian King
155283c3ac nfp: bpf: make array exp_mask static, makes object smaller
Don't populate the array exp_mask on the stack but instead make it
static. Makes the object code smaller by 224 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  77832	   2290	      0	  80122	  138fa	ethernet/netronome/nfp/bpf/jit.o

After:
   text	   data	    bss	    dec	    hex	filename
  77544	   2354	      0	  79898	  1381a	ethernet/netronome/nfp/bpf/jit.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08 11:45:23 -07:00
Honggang Li
b2e872f451 RDMA/srp: Calculate max_it_iu_size if remote max_it_iu length available
The default maximum immediate size is too big for old srp clients, which
do not support immediate data.

According to the SRP and SRP-2 specifications, the IOControllerProfile
attributes for SRP target ports contains the maximum initiator to target
iu length.

The maximum initiator to target iu length can be obtained by sending MAD
packets to query subnet manager port and SRP target ports. We should
calculate the max_it_iu_size instead of the default value, when remote
maximum initiator to target iu length available.

Link: https://lore.kernel.org/r/20190927174352.7800-2-honli@redhat.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Honggang Li <honli@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-08 15:17:32 -03:00
Honggang Li
547ed331bb RDMA/srp: Add parse function for maximum initiator to target IU size
According to SRP specifications 'srp-r16a' and 'srp2r06',
IOControllerProfile attributes for SRP target port include the maximum
initiator to target IU size.

SRP connection daemons, such as srp_daemon, can get the value from the
subnet manager. The SRP connection daemon can pass this value to kernel.

This patch adds a parse function for it.

Upstream commit [1] enables the kernel parameter, 'use_imm_data', by
default. [1] also use (8 * 1024) as the default value for kernel parameter
'max_imm_data'. With those default values, the maximum initiator to target
IU size will be 8260.

In case the SRPT modules, which include the in-tree 'ib_srpt.ko' module,
do not support SRP-2 'immediate data' feature, the default maximum
initiator to target IU size is significantly smaller than 8260. For
'ib_srpt.ko' module, which built from source before [2], the default
maximum initiator to target IU is 2116.

[1] introduces a regression issue for old srp targets with default kernel
parameters, as the connection will be rejected because of a too large
maximum initiator to target IU size.

[1] commit 882981f4a4 ("RDMA/srp: Add support for immediate data")
[2] commit 5dabcd0456 ("RDMA/srpt: Add support for immediate data")

Link: https://lore.kernel.org/r/20190927174352.7800-1-honli@redhat.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Honggang Li <honli@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-08 15:17:32 -03:00
Mark Brown
2b60d727cb
Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.5 2019-10-08 19:12:28 +01:00
YueHaibing
0a005856d3 dm clone: Make __hash_find static
drivers/md/dm-clone-target.c:594:34: warning:
 symbol '__hash_find' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-10-08 14:04:54 -04:00
Linus Torvalds
d5001955c2 GPIO fixes for the v5.4 series:
- Don't clear FLAG_IS_OUT when emulating open drain/source in
   gpiolib.
 - Fix up the usage of nonexclusive GPIO descriptors from device
   trees.
 - Fix the incorrect IEC offset when toggling trigger edge in
   the Spreadtrum driver.
 - Use the correct unit for debounce settings in the MAX77620
   driver.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl2cT2cACgkQQRCzN7AZ
 XXPCIhAAieKjIfW+adcV9+EZUybw35R9QCn27TTowK3YZfNi4cXyOi9f39gw8Kby
 ZptY9lE5w6P142z8qLmtYWZ1F639sjeo4dZ2tXIzo0PhqG36rUP2hPOCffrhvMHb
 iDby2IIgKTbR4i1YxZk75h8s0oWG542JGs39Uu+UyYTNAwJdA/4jKjIHK4XosqdD
 YbhGNP4J4rmeNLwpK7RObg2NwWsfB0P15TEywnVNEDyOSsjmm65gKYSQn+frDlOz
 sSdLy/J2+suRCu2KwHlgclF2dKcm2wyBAHItyTFwLTlYOENUC/cAGDlc6/2Nqhh+
 CR9blbf5Jns0aTWoPDRHaAXy5qkKTfcI4osDJOP8yRVziz0vW0+Xq1PxmifrFl4d
 zFIN5MPwJ3kTjNlfOaR4txuqvZX8JCDAjMfHMY0e/fqG5Ofm4OvGfsk1Xdwq7wbs
 qV5Fewv6XybdHmIuDOHvJ9iPMuMEZbgs3jNRCxnLj0NYXDMXyHR9tJoTq71v8GHg
 KvyCNwKXACrRQvE/zkEYgSgY3IXS/3Dhv3RhmpzIpP/Ey55o57CmaqG3oh2C3C0V
 OyCXXYQ8ZvFrIAwLYZwq/l1f2knP0D+uJrT/puxvFUXJQpLqD72mfr20/G1tcyrf
 8lxwf2MHmqjLV79E+lTxykfTFi0AEbSBHy2FPDYewfdPQG7h6xo=
 =J0x0
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:

 - don't clear FLAG_IS_OUT when emulating open drain/source in gpiolib

 - fix up the usage of nonexclusive GPIO descriptors from device trees

 - fix the incorrect IEC offset when toggling trigger edge in the
   Spreadtrum driver

 - use the correct unit for debounce settings in the MAX77620 driver

* tag 'gpio-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: max77620: Use correct unit for debounce times
  gpio: eic: sprd: Fix the incorrect EIC offset when toggling
  gpio: fix getting nonexclusive gpiods from DT
  gpiolib: don't clear FLAG_IS_OUT when emulating open-drain/open-source
2019-10-08 10:55:22 -07:00
Tiezhu Yang
a14bf1dc49
MIPS: generic: Use __initconst for const init data
Fix the following checkpatch errors:

$ ./scripts/checkpatch.pl --no-tree -f arch/mips/generic/init.c
ERROR: Use of const init definition must use __initconst
#23: FILE: arch/mips/generic/init.c:23:
+static __initdata const void *fdt;

ERROR: Use of const init definition must use __initconst
#24: FILE: arch/mips/generic/init.c:24:
+static __initdata const struct mips_machine *mach;

ERROR: Use of const init definition must use __initconst
#25: FILE: arch/mips/generic/init.c:25:
+static __initdata const void *mach_match_data;

Fixes: eed0eabd12 ("MIPS: generic: Introduce generic DT-based board support")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
2019-10-08 10:54:44 -07:00
Linus Torvalds
2ef459167a selinux/stable-5.4 PR 20191007
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAl2bu6kUHHBhdWxAcGF1
 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXMsxhAAtoljww3Xur0JpD7y+g2yzKGZqn9F
 ovqH103NOdpXY3vRN5TL0ZfKEWZz/a2Rjyjz/9+Ix5kKFQuaguk9TVenp4LuAWjy
 yyo8aSArqwJEpPbrgQDRkjvq08zCcsHSQHwyR44L5MEB8w03Hr+GKFbroR7DkB8R
 qthF5nRoarblEpdc88s3WbPN/Yz32zRwl3EppSRriIBSBUNr6OP5yO6YDvBdwJso
 CvmQybMK/iGiZrDzm5jAXzUyI79MHkrrB55roNXIdam9Rnyb9Wqjt9SQgzDLTvO1
 Z7c4pXqDn1iMSECAqR7EeKLmsEvnp8omDMqbZOsGiWwka93nuNM4NRhswMF6X3pf
 EbmBAuj0CokWlRoJAxyxrw/Tn+KXWjyOpOMoNQR7dyyewenzPTWw4zLhiSsl4Epo
 e1+3PDkJeZhlrtqMcQhep/OgfnPp/8FlgZXNkq1wsMK6SawIiwvxH3mpELE4I8Zk
 3yzYZvnxIDNLcx6TmDgDcJyp+P/iuFGK707G6ogCoCK9VqyTs+nwdZn3s2o1KRDW
 00LdiuXiqOyfdDthfY/q5suKJoWExh+K1dhQ7Llx169yx3uOjlnzTaSTt8dcvhkh
 Y+Nf5pEk0MVgnldaIRy/Zzr4y81Q7QW6ZwD62NHCIhcSevYczFOP7K6V/mYFmDT1
 xlCDPXeHyuR5DrM=
 =btWt
 -----END PGP SIGNATURE-----

Merge tag 'selinux-pr-20191007' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinuxfix from Paul Moore:
 "One patch to ensure we don't copy bad memory up into userspace"

* tag 'selinux-pr-20191007' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: fix context string corruption in convert_context()
2019-10-08 10:51:37 -07:00
Linus Torvalds
f54e66ae77 linux-kselftest-5.4-rc3
This Kselftest update for Linux 5.4-rc3 consists fixes for existing
 tests and the framework. Cristian Marussi's patches add ability to
 skip targets (tests) and exclude tests that didn't build from run-list.
 These patches improve the Kselftest results. Ability to skip targets
 helps avoid running tests that aren't supported in certain environments.
 As an example, bpf tests from mainline aren't supported on stable kernels
 and have dependency on bleeding edge llvm. Being able to skip bpf on
 systems that can't meet this llvm dependency will be helpful.
 
 Kselftest can be built and installed from the main Makefile. This change
 help simplify Kselftest use-cases which addresses request from users.
 
 Kees Cook added per test timeout support to limit individual test run-time.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl2bntwACgkQCwJExA0N
 QxznkA//cY2Y3UGMoUx08qnLc97cQb95OXodE3m3fcfyH/NoY6R/RAMx+2NSYhLO
 kbmpmo+6S94bgekGBzdnki/OzCoVR0d1dkxPImcxXl1zf/fs7eMgZ77Br1nQWfPP
 2WfFv7xNYnuws1Ybnz83eN+6ZQ+/AjEbHcqcufWDj/D2AQDTxF/2PXHeD42azJgG
 11EAxhCEbSb8x0ZDAeHTELvZ0gIfdWYNmOXFUHgJSW4nVYYhFNcvbq2nukmugkub
 MMWBcM6B354bAx8EoMSnBQ/1WWYszs0SqkbVce3iDh8z9R/sLFmUthljK9LR0EpW
 okfJVHF0jGSWdwnruyES8Mp7/65RBu6bkVnbdFcYW1nIw4erfzYacUBXK8WZe88g
 p5lkY1OlDbPrUcjIN1VpVw4FZt1fktXAwbTIn+xOUI9R5njv94tFNUDaQm3epKwC
 fKB1jXv8jAZ8Ho2uw4ikLW8mie9Kd9c/8PK8JoEtgXCtAxOv9/wUb6whHPvUOYeu
 B2G5ITyTJF3yYrTaPliHqb2C5cCVN0XcF5VLKQRR+RpQn4///9duQQcEEOJsKHOC
 q3SMjjhXRJfgYDLcpIRDn6uqaDwC+giWOaMq6f/QHpmsWL0eT7DJ+8lLCgpV3Bm2
 JytbiXpeUigRZCdH0xs+wp23xPRAtKlf7DlGQhOb/v9v4rp/8MY=
 =vdrT
 -----END PGP SIGNATURE-----

Merge tag 'linux-kselftest-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
 "Fixes for existing tests and the framework.

  Cristian Marussi's patches add the ability to skip targets (tests) and
  exclude tests that didn't build from run-list. These patches improve
  the Kselftest results. Ability to skip targets helps avoid running
  tests that aren't supported in certain environments. As an example,
  bpf tests from mainline aren't supported on stable kernels and have
  dependency on bleeding edge llvm. Being able to skip bpf on systems
  that can't meet this llvm dependency will be helpful.

  Kselftest can be built and installed from the main Makefile. This
  change help simplify Kselftest use-cases which addresses request from
  users.

  Kees Cook added per test timeout support to limit individual test
  run-time"

* tag 'linux-kselftest-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: watchdog: Add command line option to show watchdog_info
  selftests: watchdog: Validate optional file argument
  selftests/kselftest/runner.sh: Add 45 second timeout per test
  kselftest: exclude failed TARGETS from runlist
  kselftest: add capability to skip chosen TARGETS
  selftests: Add kselftest-all and kselftest-install targets
2019-10-08 10:49:05 -07:00
Bartosz Golaszewski
b34c095ca6 mtd: st_spi_fsm: remove unused field from struct stfsm
The 'region' field in struct stfsm is unused and can be removed.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-08 19:22:03 +02:00
Miquel Raynal
717bc8a6b4 mtd: Initialize all parameters of mtd_oob_ops
Most of the time the ooboffs parameter of the mtd_oob_ops structure
was initialized only when needed. Since the introduction of the
SPI-NAND subsystem, this parameter is transferred into
nand_page_io_req structure automatically and may be used by any
SPI-NAND user.

Before this happens, initialize all the structure parameters when they
are created in mtdchar.c.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-08 19:22:01 +02:00
Marek Vasut
2e7c3a4cd5 mtd: Remove myself from MAINTAINERS
I was not active for a very long time, remove myself from the maintainers file.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
To: linux-mtd@lists.infradead.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-08 19:14:09 +02:00
zhengbin
afa1737469 mtd: spear_smi: remove set but not used variable 'flash_info'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/mtd/devices/spear_smi.c: In function spear_smi_probe_config_dt:
drivers/mtd/devices/spear_smi.c:780:32: warning: variable flash_info set but not used [-Wunused-but-set-variable]

It is not used since commit 6551ab5d30 ("mtd:
add device-tree support to spear_smi")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-08 19:13:30 +02:00
Stephen Boyd
aab478ca0f mtd: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-08 19:01:49 +02:00
Kan Liang
8d7c6ac3b2 x86/cpu: Add Comet Lake to the Intel CPU models header
Comet Lake is the new 10th Gen Intel processor. Add two new CPU model
numbers to the Intel family list.

The CPU model numbers are not published in the SDM yet but they come
from an authoritative internal source.

 [ bp: Touch up commit message. ]

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: ak@linux.intel.com
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/1570549810-25049-2-git-send-email-kan.liang@linux.intel.com
2019-10-08 19:01:31 +02:00
Mauro Carvalho Chehab
219031a6e7 media: venus: fix build on 32bit environments
As reported by jenkins@linuxtv.org, the build with i386 fails
with:

	ld: drivers/media/platform/qcom/venus/helpers.o: in function `venus_helper_load_scale_clocks':
	(.text+0x1d77): undefined reference to `__udivdi3'
	ld: (.text+0x1dce): undefined reference to `__udivdi3'
	make: *** [Makefile:1094: vmlinux] Error 1

That's because it divides an u32 bit integer by a u64 one.

Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-08 13:46:36 -03:00