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params: lift param_set_uint_minmax to common code

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[ Upstream commit 2a14c9ae15a38148484a128b84bff7e9ffd90d68 ]

It is a useful helper hence move it to common code so others can enjoy
it.

Suggested-by: Christoph Hellwig <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Signed-off-by: Sagi Grimberg <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Stable-dep-of: 3ebc46ca8675 ("tcp: Fix shift-out-of-bounds in dctcp_update_alpha().")
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Sagi Grimberg 2021-06-16 14:19:33 -07:00 • committed by Greg Kroah-Hartman
commit 07b002723c
3 changed files with 20 additions and 18 deletions
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18
net/sunrpc/xprtsock.c
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@ -3302,24 +3302,6 @@ void cleanup_socket_xprt(void)
xprt_unregister_transport(&xs_bc_tcp_transport);
}
static int param_set_uint_minmax(const char *val,
const struct kernel_param *kp,
unsigned int min, unsigned int max)
{
unsigned int num;
int ret;
if (!val)
return -EINVAL;
ret = kstrtouint(val, 0, &num);
if (ret)
return ret;
if (num < min || num > max)
return -EINVAL;
*((unsigned int *)kp->arg) = num;
return 0;
}
static int param_set_portnr(const char *val, const struct kernel_param *kp)
{
return param_set_uint_minmax(val, kp,