[xen staging] drivers/char: Fix build when CET-IBT is enabled

[patchbot@xxxxxxx]

commit 5e936d11b171793c174686268c9c1df8a4fa974c
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Sep 26 11:46:15 2022 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Sep 27 13:32:35 2022 +0100

    drivers/char: Fix build when CET-IBT is enabled
    
    https://gitlab.com/xen-project/xen/-/jobs/3083068950#L1763
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Fixes: 022e40edd4dc ("drivers/char: allow using both dbgp=xhci and 
dbgp=ehci")
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Henry Wang <Henry.Wang@xxxxxxx>
---
 xen/drivers/char/ehci-dbgp.c | 2 +-
 xen/drivers/char/xhci-dbc.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/char/ehci-dbgp.c b/xen/drivers/char/ehci-dbgp.c
index 8a0b958506..bb9d3198d9 100644
--- a/xen/drivers/char/ehci-dbgp.c
+++ b/xen/drivers/char/ehci-dbgp.c
@@ -1465,7 +1465,7 @@ static struct ehci_dbgp ehci_dbgp = { .state = 
dbgp_unsafe, .phys_port = 1 };
 
 static char __initdata opt_dbgp[30];
 
-static int __init parse_ehci_dbgp(const char *opt)
+static int __init cf_check parse_ehci_dbgp(const char *opt)
 {
     if ( strncmp(opt, "ehci", 4) )
         return 0;
diff --git a/xen/drivers/char/xhci-dbc.c b/xen/drivers/char/xhci-dbc.c
index 5f92234a95..43ed64a004 100644
--- a/xen/drivers/char/xhci-dbc.c
+++ b/xen/drivers/char/xhci-dbc.c
@@ -1282,7 +1282,7 @@ struct dbc_dma_bufs {
 static struct dbc_dma_bufs __section(".bss.page_aligned") __aligned(PAGE_SIZE)
     dbc_dma_bufs;
 
-static int __init xhci_parse_dbgp(const char *opt_dbgp)
+static int __init cf_check xhci_parse_dbgp(const char *opt_dbgp)
 {
     struct dbc_uart *uart = &dbc_uart;
     struct dbc *dbc = &uart->dbc;
--
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