From: Dan Carpenter <dan.carpenter@oracle.com>
To: Chris Ball <cjb@laptop.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>,
linux-mmc@vger.kernel.org, David Vrabel <david.vrabel@csr.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch -resend] mmc: ushc: fix an endianness conversion in ushc_request()
Date: Wed, 27 Jun 2012 09:02:58 +0000 [thread overview]
Message-ID: <20120627090258.GH31212@elgon.mountain> (raw)
In-Reply-To: <20120627085800.GA3007@mwanda>
The ->cmd_idx field is 8 bits, not 16 so the call to cpu_to_le16()
will probably set cmd_idx to zero here on big endian systems. My guess
is that this works because it has been tested on little endian systems
where the conversion to le16 is a nop.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
I don't have a way to test this.
I have added a sentence to the changelog. I have added David Vrabel to
the CC list. This was originally sent to the mailing list on Mon, 21
Nov 2011 and there was no response.
diff --git a/drivers/mmc/host/ushc.c b/drivers/mmc/host/ushc.c
index c0105a2..25932f5 100644
--- a/drivers/mmc/host/ushc.c
+++ b/drivers/mmc/host/ushc.c
@@ -278,7 +278,7 @@ static void ushc_request(struct mmc_host *mmc, struct mmc_request *req)
ushc->current_req = req;
/* Start cmd with CBW. */
- ushc->cbw->cmd_idx = cpu_to_le16(req->cmd->opcode);
+ ushc->cbw->cmd_idx = req->cmd->opcode;
if (req->data)
ushc->cbw->block_size = cpu_to_le16(req->data->blksz);
else
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Chris Ball <cjb@laptop.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>,
linux-mmc@vger.kernel.org, David Vrabel <david.vrabel@csr.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch -resend] mmc: ushc: fix an endianness conversion in ushc_request()
Date: Wed, 27 Jun 2012 12:02:58 +0300 [thread overview]
Message-ID: <20120627090258.GH31212@elgon.mountain> (raw)
In-Reply-To: <20120627085800.GA3007@mwanda>
The ->cmd_idx field is 8 bits, not 16 so the call to cpu_to_le16()
will probably set cmd_idx to zero here on big endian systems. My guess
is that this works because it has been tested on little endian systems
where the conversion to le16 is a nop.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
I don't have a way to test this.
I have added a sentence to the changelog. I have added David Vrabel to
the CC list. This was originally sent to the mailing list on Mon, 21
Nov 2011 and there was no response.
diff --git a/drivers/mmc/host/ushc.c b/drivers/mmc/host/ushc.c
index c0105a2..25932f5 100644
--- a/drivers/mmc/host/ushc.c
+++ b/drivers/mmc/host/ushc.c
@@ -278,7 +278,7 @@ static void ushc_request(struct mmc_host *mmc, struct mmc_request *req)
ushc->current_req = req;
/* Start cmd with CBW. */
- ushc->cbw->cmd_idx = cpu_to_le16(req->cmd->opcode);
+ ushc->cbw->cmd_idx = req->cmd->opcode;
if (req->data)
ushc->cbw->block_size = cpu_to_le16(req->data->blksz);
else
next prev parent reply other threads:[~2012-06-27 9:02 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAA9_cmeNagC1sF54BAHa1sTzL3sMD3eKoftHQHCM5q9vKq5Dyg@mail.gmail.com>
2012-06-27 8:58 ` [Ksummit-2012-discuss] [ATTEND] Your upstream maintainer just isn't that into you Dan Carpenter
2012-06-27 8:59 ` [patch -resend] [SCSI] bfa: off by one in bfa_ioc_mbox_isr() Dan Carpenter
2012-06-27 8:59 ` Dan Carpenter
2012-06-27 17:44 ` Krishna Gudipati
2012-06-27 17:44 ` Krishna Gudipati
2012-06-27 8:59 ` [patch -resend] [SCSI] bfa: dereferencing freed memory in bfad_im_probe() Dan Carpenter
2012-06-27 8:59 ` Dan Carpenter
2012-06-27 17:45 ` Krishna Gudipati
2012-06-27 17:45 ` Krishna Gudipati
2012-06-27 9:00 ` [patch -resend] [SCSI] megaraid: remove a spurious IRQ enable Dan Carpenter
2012-06-27 9:00 ` Dan Carpenter
2012-06-27 22:36 ` adam radford
2012-06-27 22:36 ` adam radford
2012-06-27 9:00 ` [patch 1/2 -resend] SCSI: advansys: handle errors from scsi_dma_map() Dan Carpenter
2012-06-27 9:00 ` Dan Carpenter
2012-06-27 10:01 ` walter harms
2012-06-27 10:01 ` walter harms
2012-06-27 10:15 ` Dan Carpenter
2012-06-27 10:15 ` Dan Carpenter
2012-06-27 9:01 ` [patch 2/2 -resend] SCSI: advansys: use a subsystem error code Dan Carpenter
2012-06-27 9:01 ` Dan Carpenter
2012-06-27 9:01 ` [patch -resend] 9p: fix min_t() casting in p9pdu_vwritef() Dan Carpenter
2012-06-27 9:01 ` Dan Carpenter
2012-06-27 10:19 ` walter harms
2012-06-27 10:19 ` walter harms
2012-06-27 10:36 ` Dan Carpenter
2012-06-27 10:36 ` Dan Carpenter
2012-06-27 10:56 ` walter harms
2012-06-27 22:26 ` David Miller
2012-06-27 22:26 ` David Miller
2012-06-27 9:02 ` [patch -resend] spi/spidev: handle integer wrap in spidev_message() Dan Carpenter
2012-06-27 9:02 ` Dan Carpenter
2012-06-27 9:02 ` Dan Carpenter [this message]
2012-06-27 9:02 ` [patch -resend] mmc: ushc: fix an endianness conversion in ushc_request() Dan Carpenter
2012-06-27 9:03 ` [patch -resend] sgi-xp: nested calls to spin_lock_irqsave() Dan Carpenter
2012-06-27 9:03 ` Dan Carpenter
2012-06-27 9:04 ` [patch 1/3 -resend] [SCSI] pmcraid: remove unneeded check Dan Carpenter
2012-06-27 9:04 ` Dan Carpenter
2012-06-27 9:04 ` [patch 2/3 -resend] [SCSI] pmcraid: cpu_to_le32() => cpu_to_le64() Dan Carpenter
2012-06-27 9:04 ` Dan Carpenter
2012-06-27 9:04 ` [patch 3/3 -resend] [SCSI] pmcraid: find_first_zero_bit() takes bits not bytes Dan Carpenter
2012-06-27 9:04 ` Dan Carpenter
2012-06-27 9:05 ` [patch -resend] [SCSI] isci: add a couple __iomem annotations Dan Carpenter
2012-06-27 9:05 ` Dan Carpenter
2012-06-27 20:58 ` Dan Williams
2012-06-27 20:58 ` Dan Williams
2012-06-27 9:05 ` [SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts Dan Carpenter
2012-06-27 9:06 ` [patch -resend] NVMe: handle allocation failure in nvme_map_user_pages() Dan Carpenter
2012-06-27 9:06 ` Dan Carpenter
2012-06-27 9:06 ` [patch -resend] [media] az6007: precedence bug in az6007_i2c_xfer() Dan Carpenter
2012-06-27 9:06 ` Dan Carpenter
2012-06-27 13:11 ` Mauro Carvalho Chehab
2012-06-27 13:11 ` Mauro Carvalho Chehab
2012-06-28 19:33 ` Dan Carpenter
2012-06-28 19:33 ` Dan Carpenter
2012-06-27 9:07 ` [patch v3 -resend] edac i5000, i5400: fix pointer math in i5000_get_mc_regs() Dan Carpenter
2012-06-27 9:07 ` Dan Carpenter
2012-06-27 12:15 ` Mauro Carvalho Chehab
2012-06-27 12:15 ` Mauro Carvalho Chehab
2012-06-27 9:08 ` [patch -resend] [SCSI] megaraid: cleanup type issue in mega_build_cmd() Dan Carpenter
2012-06-27 9:08 ` Dan Carpenter
2012-06-27 22:36 ` adam radford
2012-06-27 22:36 ` adam radford
2012-06-27 9:08 ` [patch 1/2 -resend] dma-debug: debugfs_create_bool() takes a u32 pointer Dan Carpenter
2012-06-27 9:08 ` Dan Carpenter
2012-06-27 11:09 ` Neil Horman
2012-06-27 11:09 ` Neil Horman
2012-07-02 10:15 ` Joerg Roedel
2012-07-02 10:15 ` Joerg Roedel
2012-06-27 9:09 ` [patch 2/2 -resend] iommu/amd: fix type bug in flush code Dan Carpenter
2012-06-27 9:09 ` Dan Carpenter
2012-06-27 9:09 ` Dan Carpenter
2012-06-27 9:10 ` [patch -resend] isci: make function declaration match implementation Dan Carpenter
2012-06-27 9:10 ` Dan Carpenter
2012-06-27 9:10 ` [patch -resend] drm/i915/bios: cleanup return type of intel_parse_bios() Dan Carpenter
2012-06-27 9:10 ` Dan Carpenter
2012-06-27 9:10 ` [patch -resend] leds-lp5523: BUG() in error handling in probe() Dan Carpenter
2012-06-27 9:10 ` Dan Carpenter
2012-06-27 10:49 ` Bryan Wu
2012-06-27 10:49 ` Bryan Wu
2012-06-27 10:55 ` Dan Carpenter
2012-06-27 10:55 ` Dan Carpenter
2012-06-28 19:39 ` Matt Renzelmann
2012-06-28 19:39 ` Matt Renzelmann
2012-06-27 9:11 ` [patch -resend] Input: ff-memless - fix a couple min_t() casts Dan Carpenter
2012-06-27 9:11 ` Dan Carpenter
2012-07-08 1:18 ` Dmitry Torokhov
2012-07-08 1:18 ` Dmitry Torokhov
2012-06-27 9:11 ` [patch -resend] [patch] tlb_uv: remove some dead code in parse_tunables_write() Dan Carpenter
2012-06-27 9:11 ` Dan Carpenter
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