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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, Jeff Layton <jlayton@redhat.com>,
	Sage Weil <sage@redhat.com>, Ilya Dryomov <idryomov@gmail.com>
Subject: [PATCH 4.4 28/42] ceph: fix bad endianness handling in parse_reply_info_extra
Date: Tue, 24 Jan 2017 08:55:38 +0100	[thread overview]
Message-ID: <20170124075510.487931052@linuxfoundation.org> (raw)
In-Reply-To: <20170124075509.299412838@linuxfoundation.org>

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jeff Layton <jlayton@redhat.com>

commit 6df8c9d80a27cb587f61b4f06b57e248d8bc3f86 upstream.

sparse says:

    fs/ceph/mds_client.c:291:23: warning: restricted __le32 degrades to integer
    fs/ceph/mds_client.c:293:28: warning: restricted __le32 degrades to integer
    fs/ceph/mds_client.c:294:28: warning: restricted __le32 degrades to integer
    fs/ceph/mds_client.c:296:28: warning: restricted __le32 degrades to integer

The op value is __le32, so we need to convert it before comparing it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ceph/mds_client.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -274,12 +274,13 @@ static int parse_reply_info_extra(void *
 				  struct ceph_mds_reply_info_parsed *info,
 				  u64 features)
 {
-	if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
+	u32 op = le32_to_cpu(info->head->op);
+
+	if (op == CEPH_MDS_OP_GETFILELOCK)
 		return parse_reply_info_filelock(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_READDIR ||
-		 info->head->op == CEPH_MDS_OP_LSSNAP)
+	else if (op == CEPH_MDS_OP_READDIR || op == CEPH_MDS_OP_LSSNAP)
 		return parse_reply_info_dir(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_CREATE)
+	else if (op == CEPH_MDS_OP_CREATE)
 		return parse_reply_info_create(p, end, info, features);
 	else
 		return -EIO;

  parent reply	other threads:[~2017-01-24  7:55 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20170124075830epcas1p296b07d21649bc2441732496425ef6977@epcas1p2.samsung.com>
2017-01-24  7:55 ` [PATCH 4.4 00/42] 4.4.45-stable review Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 01/42] ftrace/x86: Set ftrace_stub to weak to prevent gcc from using short jumps to it Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 02/42] IB/mlx5: Wait for all async command completions to complete Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 03/42] IB/mlx4: Set traffic class in AH Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 04/42] IB/mlx4: Fix out-of-range array index in destroy qp flow Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 05/42] IB/mlx4: Fix port query for 56Gb Ethernet links Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 06/42] IB/mlx4: When no DMFS for IPoIB, dont allow NET_IF QPs Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 07/42] IB/IPoIB: Remove cant use GFP_NOIO warning Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 08/42] perf scripting: Avoid leaking the scripting_context variable Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 09/42] ARM: dts: imx31: fix clock control module interrupts description Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 11/42] ARM: dts: imx31: fix AVIC base address Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 12/42] tmpfs: clear S_ISGID when setting posix ACLs Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 13/42] x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 14/42] svcrpc: dont leak contexts on PROC_DESTROY Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 15/42] fuse: clear FR_PENDING flag when moving requests out of pending queue Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 16/42] PCI: Enumerate switches below PCI-to-PCIe bridges Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 17/42] HID: corsair: fix DMA buffers on stack Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 18/42] HID: corsair: fix control-transfer error handling Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 19/42] mmc: mxs-mmc: Fix additional cycles after transmission stop Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 20/42] ieee802154: atusb: do not use the stack for buffers to make them DMA able Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 21/42] mtd: nand: xway: disable module support Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 22/42] x86/ioapic: Restore IO-APIC irq_chip retrigger callback Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 23/42] qla2xxx: Fix crash due to null pointer access Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 24/42] ubifs: Fix journal replay wrt. xattr nodes Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 25/42] clocksource/exynos_mct: Clear interrupt when cpu is shut down Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 26/42] svcrdma: avoid duplicate dma unmapping during error recovery Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 27/42] ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs Greg Kroah-Hartman
2017-01-24  7:55   ` Greg Kroah-Hartman [this message]
2017-01-24  7:55   ` [PATCH 4.4 29/42] ARM: dts: da850-evm: fix read access to SPI flash Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 30/42] arm64/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 31/42] arm64/ptrace: Preserve previous registers for short regset write - 2 Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 32/42] arm64/ptrace: Preserve previous registers for short regset write - 3 Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 33/42] arm64/ptrace: Avoid uninitialised struct padding in fpr_set() Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 34/42] arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 35/42] ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 36/42] ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 37/42] ARM: 8613/1: Fix the uaccess crash on PB11MPCore Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 38/42] [media] blackfin: check devm_pinctrl_get() for errors Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 39/42] [media] ite-cir: initialize use_demodulator before using it Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 40/42] dmaengine: pl330: Fix runtime PM support for terminated transfers Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 41/42] selftest/powerpc: Wrong PMC initialized in pmc56_overflow test Greg Kroah-Hartman
2017-01-24  7:55   ` [PATCH 4.4 42/42] arm64: avoid returning from bad_mode Greg Kroah-Hartman
2017-01-24 18:26   ` [PATCH 4.4 00/42] 4.4.45-stable review Shuah Khan
2017-01-24 19:08   ` Guenter Roeck

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