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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Willy Tarreau <w@1wt.eu>,
	Emese Revfy <re.emese@gmail.com>,
	Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 46/57] random32: Restore __latent_entropy attribute on net_rand_state
Date: Mon,  5 Oct 2020 17:26:58 +0200	[thread overview]
Message-ID: <20201005142112.022243760@linuxfoundation.org> (raw)
In-Reply-To: <20201005142109.796046410@linuxfoundation.org>

From: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>

[ Upstream commit 09a6b0bc3be793ca8cba580b7992d73e9f68f15d ]

Commit f227e3ec3b5c ("random32: update the net random state on interrupt
and activity") broke compilation and was temporarily fixed by Linus in
83bdc7275e62 ("random32: remove net_rand_state from the latent entropy
gcc plugin") by entirely moving net_rand_state out of the things handled
by the latent_entropy GCC plugin.

>From what I understand when reading the plugin code, using the
__latent_entropy attribute on a declaration was the wrong part and
simply keeping the __latent_entropy attribute on the variable definition
was the correct fix.

Fixes: 83bdc7275e62 ("random32: remove net_rand_state from the latent entropy gcc plugin")
Acked-by: Willy Tarreau <w@1wt.eu>
Cc: Emese Revfy <re.emese@gmail.com>
Signed-off-by: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/random32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/random32.c b/lib/random32.c
index 3d749abb9e80d..1786f78bf4c53 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -48,7 +48,7 @@ static inline void prandom_state_selftest(void)
 }
 #endif
 
-DEFINE_PER_CPU(struct rnd_state, net_rand_state);
+DEFINE_PER_CPU(struct rnd_state, net_rand_state)  __latent_entropy;
 
 /**
  *	prandom_u32_state - seeded pseudo-random number generator.
-- 
2.25.1




  parent reply	other threads:[~2020-10-05 15:31 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-05 15:26 [PATCH 5.4 00/57] 5.4.70-rc1 review Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 01/57] btrfs: fix filesystem corruption after a device replace Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 02/57] mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 03/57] USB: gadget: f_ncm: Fix NDP16 datagram validation Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 04/57] gpio: siox: explicitly support only threaded irqs Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 05/57] gpio: mockup: fix resource leak in error path Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 06/57] gpio: tc35894: fix up tc35894 interrupt configuration Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 07/57] clk: socfpga: stratix10: fix the divider for the emac_ptp_free_clk Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 08/57] vsock/virtio: add transport parameter to the virtio_transport_reset_no_sock() Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 09/57] net: virtio_vsock: Enhance connection semantics Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 10/57] xfs: trim IO to found COW extent limit Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 11/57] Input: i8042 - add nopnp quirk for Acer Aspire 5 A515 Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 12/57] iio: adc: qcom-spmi-adc5: fix driver name Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 13/57] ftrace: Move RCU is watching check after recursion check Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 14/57] memstick: Skip allocating card when removing host Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 15/57] drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 16/57] clocksource/drivers/timer-gx6605s: Fixup counter reload Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 17/57] libbpf: Remove arch-specific include path in Makefile Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 18/57] drivers/net/wan/hdlc_fr: Add needed_headroom for PVC devices Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 19/57] drm/sun4i: mixer: Extend regmap max_register Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 20/57] net: dec: de2104x: Increase receive ring size for Tulip Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 21/57] rndis_host: increase sleep time in the query-response loop Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 22/57] nvme-core: get/put ctrl and transport module in nvme_dev_open/release() Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 23/57] fuse: fix the ->direct_IO() treatment of iov_iter Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 24/57] drivers/net/wan/lapbether: Make skb->protocol consistent with the header Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 25/57] drivers/net/wan/hdlc: Set skb->protocol before transmitting Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 26/57] mac80211: Fix radiotap header channel flag for 6GHz band Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 27/57] mac80211: do not allow bigger VHT MPDUs than the hardware supports Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 28/57] tracing: Make the space reserved for the pid wider Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 29/57] tools/io_uring: fix compile breakage Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 30/57] spi: fsl-espi: Only process interrupts for expected events Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 31/57] nvme-pci: fix NULL req in completion handler Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 32/57] nvme-fc: fail new connections to a deleted host or remote port Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 33/57] gpio: sprd: Clear interrupt when setting the type as edge Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 34/57] phy: ti: am654: Fix a leak in serdes_am654_probe() Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 35/57] pinctrl: mvebu: Fix i2c sda definition for 98DX3236 Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 36/57] nfs: Fix security label length not being reset Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 37/57] clk: tegra: Always program PLL_E when enabled Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 38/57] clk: samsung: exynos4: mark chipid clock as CLK_IGNORE_UNUSED Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 39/57] iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate() Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 40/57] gpio/aspeed-sgpio: enable access to all 80 input & output sgpios Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 41/57] gpio/aspeed-sgpio: dont enable all interrupts by default Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 42/57] gpio: aspeed: fix ast2600 bank properties Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 43/57] i2c: cpm: Fix i2c_ram structure Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 44/57] Input: trackpoint - enable Synaptics trackpoints Greg Kroah-Hartman
2020-10-05 15:26 ` [PATCH 5.4 45/57] scripts/dtc: only append to HOST_EXTRACFLAGS instead of overwriting Greg Kroah-Hartman
2020-10-05 15:26 ` Greg Kroah-Hartman [this message]
2020-10-05 15:26 ` [PATCH 5.4 47/57] block/diskstats: more accurate approximation of io_ticks for slow disks Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 48/57] mm: replace memmap_context by meminit_context Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 49/57] mm: dont rely on system state to detect hot-plug operations Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 50/57] nvme: Cleanup and rename nvme_block_nr() Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 51/57] nvme: Introduce nvme_lba_to_sect() Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 52/57] nvme: consolidate chunk_sectors settings Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 53/57] epoll: do not insert into poll queues until all sanity checks are done Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 54/57] epoll: replace ->visited/visited_list with generation count Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 55/57] epoll: EPOLL_CTL_ADD: close the race in decision to take fast path Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 56/57] ep_create_wakeup_source(): dentry name can change under you Greg Kroah-Hartman
2020-10-05 15:27 ` [PATCH 5.4 57/57] netfilter: ctnetlink: add a range check for l3/l4 protonum Greg Kroah-Hartman
2020-10-06  0:22 ` [PATCH 5.4 00/57] 5.4.70-rc1 review Shuah Khan
2020-10-06  5:54 ` Naresh Kamboju
2020-10-06  8:25   ` Naresh Kamboju
2020-10-06 14:49     ` Ben Hutchings
2020-10-06 18:17 ` Guenter Roeck

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