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Tsirkin" To: qemu-devel@nongnu.org Subject: [PATCH] cpuid: use unsigned for max cpuid Message-ID: <20220125192232.99101-1-mst@redhat.com> MIME-Version: 1.0 X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mst@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.158, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Richard Henderson , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1643140074758100001 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" __get_cpuid_max returns an unsigned value. For consistency, store the result in an unsigned variable. Found by running ./configure --extra-cflags=3D-Wconversion Cc: Paolo Bonzini Cc: Richard Henderson Signed-off-by: Michael S. Tsirkin Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- Richard, if appropriate pls queue this. Thanks! configure | 2 +- util/bufferiszero.c | 2 +- tcg/i386/tcg-target.c.inc | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/configure b/configure index e1a31fb332..938f43a59a 100755 --- a/configure +++ b/configure @@ -2768,7 +2768,7 @@ cat > $TMPC << EOF #include int main(void) { unsigned a, b, c, d; - int max =3D __get_cpuid_max(0, 0); + unsigned max =3D __get_cpuid_max(0, 0); =20 if (max >=3D 1) { __cpuid(1, a, b, c, d); diff --git a/util/bufferiszero.c b/util/bufferiszero.c index 695bb4ce28..ec3cd4ca15 100644 --- a/util/bufferiszero.c +++ b/util/bufferiszero.c @@ -272,7 +272,7 @@ static void init_accel(unsigned cache) =20 static void __attribute__((constructor)) init_cpuid_cache(void) { - int max =3D __get_cpuid_max(0, NULL); + unsigned max =3D __get_cpuid_max(0, NULL); int a, b, c, d; unsigned cache =3D 0; =20 diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 875311f795..4dab09f265 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -3747,7 +3747,7 @@ static void tcg_target_init(TCGContext *s) { #ifdef CONFIG_CPUID_H unsigned a, b, c, d, b7 =3D 0; - int max =3D __get_cpuid_max(0, 0); + unsigned max =3D __get_cpuid_max(0, 0); =20 if (max >=3D 7) { /* BMI1 is available on AMD Piledriver and Intel Haswell CPUs. */ --=20 MST