Files
xen/stubdom/vtpm-tpm_bn_t-addr.patch
Andrew Cooper 46c5ef609b subdom: Fix -Werror=address failure in tmp_emulator
The opensuse-tumbleweed build jobs currently fail with:

  /builds/xen-project/xen/stubdom/tpm_emulator-x86_64/crypto/rsa.c: In function 'rsa_private':
  /builds/xen-project/xen/stubdom/tpm_emulator-x86_64/crypto/rsa.c:56:7: error: the comparison will always evaluate as 'true' for the address of 'p' will never be NULL [-Werror=address]
     56 |   if (!key->p || !key->q || !key->u) {
        |       ^
  In file included from /builds/xen-project/xen/stubdom/tpm_emulator-x86_64/crypto/rsa.c:17:
  /builds/xen-project/xen/stubdom/tpm_emulator-x86_64/crypto/rsa.h:28:12: note: 'p' declared here
     28 |   tpm_bn_t p;
        |            ^

This is because all tpm_bn_t's are 1-element arrays (of either a GMP or
OpenSSL BIGNUM flavour).

Adjust it to compile.  No functional change.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
2023-08-08 12:24:17 +01:00

19 lines
683 B
Diff

All tpm_bn_t's are a 1-element array of one form or another, meaning the code
below is tautological and triggers -Werror=address.
diff -ru tpm_emulator-x86_64.orig/crypto/rsa.c tpm_emulator-x86_64/crypto/rsa.c
--- tpm_emulator-x86_64.orig/crypto/rsa.c 2011-12-20 18:30:06.000000000 +0000
+++ tpm_emulator-x86_64/crypto/rsa.c 2023-08-03 20:44:17.379166284 +0100
@@ -53,10 +53,7 @@
tpm_bn_init2(c, key->size);
tpm_bn_import(p, in_len, 1, in);
- if (!key->p || !key->q || !key->u) {
- /* c = p ^ d mod n */
- tpm_bn_powm(c, p, key->d, key->n);
- } else {
+ {
tpm_bn_init2(m1, key->size / 2);
tpm_bn_init2(m2, key->size / 2);
tpm_bn_init2(h, key->size);