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hv: Squash warning of code scanning tool

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The original use of recalc_checksum(eps->int_anchor, ...) may cause
an array bound overflow warning from code scanning tool. This patch
changes it to use offsetof to avoid using int_anchor directly.

Tracked-On: #6383
Signed-off-by: Yifan Liu <yifan1.liu@intel.com>
This commit is contained in:
Yifan Liu 2021-08-11 13:28:01 +08:00 committed by wenlingz
parent 7dd877f8eb
commit 4e77dcfba1
1 changed files with 2 additions and 1 deletions
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3
hypervisor/quirks/smbios.c
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@ -190,7 +190,8 @@ static int copy_smbios_to_guest(struct acrn_vm *vm)
struct smbios_entry_point *eps = &smbios_eps.eps;
eps->st_addr = (uint32_t)gpa;
/* the intermediate checksum covers the structure table field */
recalc_checksum((uint8_t *)eps->int_anchor, 0xf, &eps->int_checksum);
recalc_checksum((uint8_t *)eps + offsetof(struct smbios_entry_point, int_anchor),
0xf, &eps->int_checksum);
} else {
/* SMBIOS3 (_SM3_) */
struct smbios3_entry_point *eps3 = &smbios_eps.eps3;