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net/smc: dynamic allocation of CLC proposal buffer

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Reduce stack size for smc_listen_work() and smc_clc_send_proposal()
by dynamic allocation of the CLC buffer to be received or sent.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun
2020-09-10 18:48:22 +02:00
committed by David S. Miller
parent 5ac54d8768
commit 6bb14e48ee
3 changed files with 67 additions and 49 deletions
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15
net/smc/smc_clc.h
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@@ -110,14 +110,13 @@ struct smc_clc_msg_proposal { /* clc proposal message sent by Linux */
__be16 iparea_offset; /* offset to IP address information area */
} __aligned(4);
#define SMC_CLC_PROPOSAL_MAX_OFFSET 0x28
#define SMC_CLC_PROPOSAL_MAX_PREFIX (SMC_CLC_MAX_V6_PREFIX * \
sizeof(struct smc_clc_ipv6_prefix))
#define SMC_CLC_MAX_LEN (sizeof(struct smc_clc_msg_proposal) + \
SMC_CLC_PROPOSAL_MAX_OFFSET + \
sizeof(struct smc_clc_msg_proposal_prefix) + \
SMC_CLC_PROPOSAL_MAX_PREFIX + \
sizeof(struct smc_clc_msg_trail))
struct smc_clc_msg_proposal_area {
struct smc_clc_msg_proposal pclc_base;
struct smc_clc_msg_smcd pclc_smcd;
struct smc_clc_msg_proposal_prefix pclc_prfx;
struct smc_clc_ipv6_prefix pclc_prfx_ipv6[SMC_CLC_MAX_V6_PREFIX];
struct smc_clc_msg_trail pclc_trl;
};
struct smc_clc_msg_accept_confirm { /* clc accept / confirm message */
struct smc_clc_msg_hdr hdr;