From: vishal.l.verma@intel.com (Verma, Vishal L)
Subject: [PATCH 01/11] block: nvme-scsi: Fix probable mask then right shift defects
Date: Mon, 10 Nov 2014 19:33:54 +0000 [thread overview]
Message-ID: <1415648084.4373.2.camel@omniknight.lm.intel.com> (raw)
In-Reply-To: <8cd08200f7cc1d1a7562d61f22a0758ec7ca182a.1414387334.git.joe@perches.com>
On Sun, 2014-10-26@22:24 -0700, Joe Perches wrote:
> Precedence of & and >> is not the same and is not left to right.
> shift has higher precedence and should be done after the mask.
>
> Add parentheses around the mask.
>
> Signed-off-by: Joe Perches <joe at perches.com>
Acked-by: Vishal Verma <vishal.l.verma at linux.intel.com>
> ---
> drivers/block/nvme-scsi.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c
> index a4cd6d6..529ee54 100644
> --- a/drivers/block/nvme-scsi.c
> +++ b/drivers/block/nvme-scsi.c
> @@ -1972,8 +1972,8 @@ static inline void nvme_trans_get_io_cdb10(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_10_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_10_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_10_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U32_FROM_CDB(cmd, IO_10_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U16_FROM_CDB(cmd, IO_10_CDB_TX_LEN_OFFSET);
> }
> @@ -1983,8 +1983,8 @@ static inline void nvme_trans_get_io_cdb12(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_12_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_12_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_12_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U32_FROM_CDB(cmd, IO_12_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U32_FROM_CDB(cmd, IO_12_CDB_TX_LEN_OFFSET);
> }
> @@ -1994,8 +1994,8 @@ static inline void nvme_trans_get_io_cdb16(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_16_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_16_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_16_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U64_FROM_CDB(cmd, IO_16_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U32_FROM_CDB(cmd, IO_16_CDB_TX_LEN_OFFSET);
> }
WARNING: multiple messages have this Message-ID (diff)
From: "Verma, Vishal L" <vishal.l.verma@intel.com>
To: "joe@perches.com" <joe@perches.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"willy@linux.intel.com" <willy@linux.intel.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>
Subject: Re: [PATCH 01/11] block: nvme-scsi: Fix probable mask then right shift defects
Date: Mon, 10 Nov 2014 19:33:54 +0000 [thread overview]
Message-ID: <1415648084.4373.2.camel@omniknight.lm.intel.com> (raw)
In-Reply-To: <8cd08200f7cc1d1a7562d61f22a0758ec7ca182a.1414387334.git.joe@perches.com>
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 2410 bytes --]
On Sun, 2014-10-26 at 22:24 -0700, Joe Perches wrote:
> Precedence of & and >> is not the same and is not left to right.
> shift has higher precedence and should be done after the mask.
>
> Add parentheses around the mask.
>
> Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Vishal Verma <vishal.l.verma@linux.intel.com>
> ---
> drivers/block/nvme-scsi.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c
> index a4cd6d6..529ee54 100644
> --- a/drivers/block/nvme-scsi.c
> +++ b/drivers/block/nvme-scsi.c
> @@ -1972,8 +1972,8 @@ static inline void nvme_trans_get_io_cdb10(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_10_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_10_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_10_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U32_FROM_CDB(cmd, IO_10_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U16_FROM_CDB(cmd, IO_10_CDB_TX_LEN_OFFSET);
> }
> @@ -1983,8 +1983,8 @@ static inline void nvme_trans_get_io_cdb12(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_12_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_12_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_12_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U32_FROM_CDB(cmd, IO_12_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U32_FROM_CDB(cmd, IO_12_CDB_TX_LEN_OFFSET);
> }
> @@ -1994,8 +1994,8 @@ static inline void nvme_trans_get_io_cdb16(u8 *cmd,
> {
> cdb_info->fua = GET_U8_FROM_CDB(cmd, IO_16_CDB_FUA_OFFSET) &
> IO_CDB_FUA_MASK;
> - cdb_info->prot_info = GET_U8_FROM_CDB(cmd, IO_16_CDB_WP_OFFSET) &
> - IO_CDB_WP_MASK >> IO_CDB_WP_SHIFT;
> + cdb_info->prot_info = (GET_U8_FROM_CDB(cmd, IO_16_CDB_WP_OFFSET) &
> + IO_CDB_WP_MASK) >> IO_CDB_WP_SHIFT;
> cdb_info->lba = GET_U64_FROM_CDB(cmd, IO_16_CDB_LBA_OFFSET);
> cdb_info->xfer_len = GET_U32_FROM_CDB(cmd, IO_16_CDB_TX_LEN_OFFSET);
> }
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next prev parent reply other threads:[~2014-11-10 19:33 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-27 5:24 [PATCH 00/11] treewide: mask then shift defects and style updates Joe Perches
2014-10-27 5:24 ` Joe Perches
2014-10-27 5:24 ` Joe Perches
2014-10-27 5:24 ` [PATCH 01/11] block: nvme-scsi: Fix probable mask then right shift defects Joe Perches
2014-10-27 5:24 ` Joe Perches
2014-11-10 19:33 ` Verma, Vishal L [this message]
2014-11-10 19:33 ` Verma, Vishal L
2014-10-27 5:24 ` [PATCH 02/11] radeon: evergreen: " Joe Perches
2014-10-27 5:24 ` Joe Perches
2014-10-27 9:14 ` Michel Dänzer
2014-10-27 9:14 ` Michel Dänzer
2014-10-27 14:14 ` [PATCH 02/11 V2] radeon: evergreen: Fix probable mask then right shift defect Joe Perches
2014-10-27 14:14 ` Joe Perches
2014-10-28 3:42 ` Michel Dänzer
2014-10-28 3:42 ` Michel Dänzer
2014-10-28 14:06 ` Alex Deucher
2014-10-28 14:06 ` Alex Deucher
2014-10-29 3:03 ` Michel Dänzer
2014-10-29 3:03 ` Michel Dänzer
2014-10-27 5:24 ` [PATCH 03/11] aiptek: Fix probable mask then right shift defects Joe Perches
2014-10-27 14:44 ` Dmitry Torokhov
2014-10-27 17:56 ` Joe Perches
2014-10-27 18:01 ` Dmitry Torokhov
2014-10-27 18:03 ` Joe Perches
2014-10-27 5:25 ` [PATCH 04/11] dvb-net: " Joe Perches
2014-10-27 5:25 ` [PATCH 05/11] cx25840/cx18: Use standard ordering of mask and shift Joe Perches
2014-11-08 13:41 ` Andy Walls
2014-10-27 5:25 ` [PATCH 06/11] wm8350-core: Fix probable mask then right shift defect Joe Perches
2014-10-27 12:47 ` Charles Keepax
2014-11-03 18:02 ` Lee Jones
2014-10-27 5:25 ` [PATCH 07/11] iwlwifi: dvm: " Joe Perches
2014-10-27 6:14 ` Grumbach, Emmanuel
2014-10-27 5:25 ` [PATCH 08/11] ssb: driver_chip_comon_pmu: " Joe Perches
2014-10-27 17:32 ` Michael Büsch
2014-10-27 5:25 ` [PATCH 09/11] tty: ipwireless: Fix probable mask then right shift defects Joe Perches
2014-10-27 13:18 ` David Sterba
2014-10-27 14:17 ` Jiri Kosina
2014-10-28 1:57 ` Greg Kroah-Hartman
2014-10-27 5:25 ` [PATCH 10/11] hwa-hc: Fix probable mask then right shift defect Joe Perches
2014-10-27 5:25 ` [PATCH 11/11] sound: ad1889: Fix probable mask then right shift defects Joe Perches
2014-10-27 7:41 ` Takashi Iwai
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