Re: [PATCH 3/4] ipr: Endian / sparse fixes

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Reviewed-by: Wen Xiong <wenxiong@xxxxxxxxxxxxxxxxxx>

Thanks,
Wendy
Quoting Brian King <brking@xxxxxxxxxxxxxxxxxx>:

Some misc fixes for endianness checking with sparse so sparse with
endian checking now runs clean. Fixes a minor bug in the process
which was uncovered by sparse which would result in unnecessary
error recovery for check conditions.

Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx>
---

 drivers/scsi/ipr.c |   13 +++++++------
 drivers/scsi/ipr.h |   13 ++++++-------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff -puN drivers/scsi/ipr.h~ipr_endian_fixes drivers/scsi/ipr.h
--- linux/drivers/scsi/ipr.h~ipr_endian_fixes 2015-06-11 20:18:29.102541573 -0500
+++ linux-bjking1/drivers/scsi/ipr.h	2015-06-11 20:18:29.112541485 -0500
@@ -1007,13 +1007,13 @@ struct ipr_hostrcb_type_24_error {
 struct ipr_hostrcb_type_07_error {
 	u8 failure_reason[64];
 	struct ipr_vpd vpd;
-	u32 data[222];
+	__be32 data[222];
 }__attribute__((packed, aligned (4)));

 struct ipr_hostrcb_type_17_error {
 	u8 failure_reason[64];
 	struct ipr_ext_vpd vpd;
-	u32 data[476];
+	__be32 data[476];
 }__attribute__((packed, aligned (4)));

 struct ipr_hostrcb_config_element {
@@ -1291,18 +1291,17 @@ struct ipr_resource_entry {
 	(((res)->bus << 24) | ((res)->target << 8) | (res)->lun)

 	u8 ata_class;
-
-	u8 flags;
-	__be16 res_flags;
-
 	u8 type;

+	u16 flags;
+	u16 res_flags;
+
 	u8 qmodel;
 	struct ipr_std_inq_data std_inq_data;

 	__be32 res_handle;
 	__be64 dev_id;
-	__be64 lun_wwn;
+	u64 lun_wwn;
 	struct scsi_lun dev_lun;
 	u8 res_path[8];

diff -puN drivers/scsi/ipr.c~ipr_endian_fixes drivers/scsi/ipr.c
--- linux/drivers/scsi/ipr.c~ipr_endian_fixes 2015-06-11 20:18:29.107541529 -0500
+++ linux-bjking1/drivers/scsi/ipr.c	2015-06-11 20:18:29.121541408 -0500
@@ -1159,7 +1159,8 @@ static void ipr_init_res_entry(struct ip

 	if (ioa_cfg->sis64) {
 		proto = cfgtew->u.cfgte64->proto;
-		res->res_flags = cfgtew->u.cfgte64->res_flags;
+		res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
+		res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
 		res->qmodel = IPR_QUEUEING_MODEL64(res);
 		res->type = cfgtew->u.cfgte64->res_type;

@@ -1307,8 +1308,8 @@ static void ipr_update_res_entry(struct
 	int new_path = 0;

 	if (res->ioa_cfg->sis64) {
-		res->flags = cfgtew->u.cfgte64->flags;
-		res->res_flags = cfgtew->u.cfgte64->res_flags;
+		res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
+		res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
 		res->type = cfgtew->u.cfgte64->res_type;

 		memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
@@ -1894,7 +1895,7 @@ static void ipr_log_array_error(struct i
  * Return value:
  * 	none
  **/
-static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) +static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
 {
 	int i;

@@ -2264,7 +2265,7 @@ static void ipr_log_fabric_error(struct
 			((unsigned long)fabric + be16_to_cpu(fabric->length));
 	}

-	ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
+	ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
 }

 /**
@@ -2358,7 +2359,7 @@ static void ipr_log_sis64_fabric_error(s
 			((unsigned long)fabric + be16_to_cpu(fabric->length));
 	}

-	ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
+	ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
 }

 /**
_


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