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s390/ism: Cleanups
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Reworked signature of the function to retrieve the system EID: No plausible
reason to use a double pointer. And neither to pass in the device as an
argument, as this identifier is by definition per system, not per device.
Plus some minor consistency edits.

Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Wenjia Zhang < wenjia@linux.ibm.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Stefan Raspl authored and David S. Miller committed Jul 27, 2022
1 parent eb481b0 commit 0a2f4f9
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Showing 3 changed files with 7 additions and 8 deletions.
11 changes: 5 additions & 6 deletions drivers/s390/net/ism_drv.c
Original file line number Diff line number Diff line change
Expand Up @@ -409,20 +409,19 @@ static void ism_create_system_eid(void)
memcpy(&SYSTEM_EID.type, tmp, 4);
}

static void ism_get_system_eid(struct smcd_dev *smcd, u8 **eid)
static u8 *ism_get_system_eid(void)
{
*eid = &SYSTEM_EID.seid_string[0];
return SYSTEM_EID.seid_string;
}

static u16 ism_get_chid(struct smcd_dev *smcd)
{
struct ism_dev *ismdev;
struct ism_dev *ism = (struct ism_dev *)smcd->priv;

ismdev = (struct ism_dev *)smcd->priv;
if (!ismdev || !ismdev->pdev)
if (!ism || !ism->pdev)
return 0;

return to_zpci(ismdev->pdev)->pchid;
return to_zpci(ism->pdev)->pchid;
}

static void ism_handle_event(struct ism_dev *ism)
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2 changes: 1 addition & 1 deletion include/net/smc.h
Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ struct smcd_ops {
int (*move_data)(struct smcd_dev *dev, u64 dmb_tok, unsigned int idx,
bool sf, unsigned int offset, void *data,
unsigned int size);
void (*get_system_eid)(struct smcd_dev *dev, u8 **eid);
u8* (*get_system_eid)(void);
u16 (*get_chid)(struct smcd_dev *dev);
};

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2 changes: 1 addition & 1 deletion net/smc/smc_ism.c
Original file line number Diff line number Diff line change
Expand Up @@ -429,7 +429,7 @@ int smcd_register_dev(struct smcd_dev *smcd)
if (list_empty(&smcd_dev_list.list)) {
u8 *system_eid = NULL;

smcd->ops->get_system_eid(smcd, &system_eid);
system_eid = smcd->ops->get_system_eid();
if (system_eid[24] != '0' || system_eid[28] != '0') {
smc_ism_v2_capable = true;
memcpy(smc_ism_v2_system_eid, system_eid,
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