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| author | Julian Wiedmann | 2019-06-27 17:01:23 +0200 |
|---|---|---|
| committer | David S. Miller | 2019-06-27 19:18:23 +0200 |
| commit | 1c696c896f218b12d5f92d892fffee5abd0265c9 (patch) | |
| tree | 5e71283f227405533ec655bf77913dc8ecf310b7 /drivers/s390/net/qeth_core_main.c | |
| parent | s390/qeth: dynamically allocate simple IPA cmds (diff) | |
| download | kernel-qcow2-linux-1c696c896f218b12d5f92d892fffee5abd0265c9.tar.gz kernel-qcow2-linux-1c696c896f218b12d5f92d892fffee5abd0265c9.tar.xz kernel-qcow2-linux-1c696c896f218b12d5f92d892fffee5abd0265c9.zip | |
s390/qeth: clarify parameter for simple assist cmds
For code that uses qeth_send_simple_setassparms_prot(), we currently
can't differentiate whether the cmd should contain (1) no parameter, or
(2) a 4-byte parameter with value 0.
At the moment this doesn't cause any trouble. But when using dynamically
allocated cmds, we need to know whether to allocate & transmit an
additional 4 bytes of zeroes.
So instead of the raw parameter value, pass a parameter pointer
(or NULL) to qeth_send_simple_setassparms_prot().
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_core_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 84ed772bbfbd..3ba91b1c1315 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5355,20 +5355,19 @@ EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); int qeth_send_simple_setassparms_prot(struct qeth_card *card, enum qeth_ipa_funcs ipa_func, - u16 cmd_code, long data, + u16 cmd_code, u32 *data, enum qeth_prot_versions prot) { - int length = 0; + unsigned int length = data ? SETASS_DATA_SIZEOF(flags_32bit) : 0; struct qeth_cmd_buffer *iob; QETH_CARD_TEXT_(card, 4, "simassp%i", prot); - if (data) - length = sizeof(__u32); iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); if (!iob) return -ENOMEM; - __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; + if (data) + __ipa_cmd(iob)->data.setassparms.data.flags_32bit = *data; return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL); } EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); @@ -5885,8 +5884,8 @@ static int qeth_start_csum_cb(struct qeth_card *card, struct qeth_reply *reply, static int qeth_set_csum_off(struct qeth_card *card, enum qeth_ipa_funcs cstype, enum qeth_prot_versions prot) { - return qeth_send_simple_setassparms_prot(card, cstype, - IPA_CMD_ASS_STOP, 0, prot); + return qeth_send_simple_setassparms_prot(card, cstype, IPA_CMD_ASS_STOP, + NULL, prot); } static int qeth_set_csum_on(struct qeth_card *card, enum qeth_ipa_funcs cstype, @@ -5974,7 +5973,7 @@ static int qeth_set_tso_off(struct qeth_card *card, enum qeth_prot_versions prot) { return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, - IPA_CMD_ASS_STOP, 0, prot); + IPA_CMD_ASS_STOP, NULL, prot); } static int qeth_set_tso_on(struct qeth_card *card, |