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Tsirkin" , Jason Wang , Christian Schoenebeck , qemu-devel@nongnu.org, Peter Xu , Klaus Jensen , KONRAD Frederic , Konstantin Kostiuk , Gerd Hoffmann , Ani Sinha , Reinoud Zandijk , Eric Blake , Sunil Muthuswamy , Stefano Stabellini , xen-devel@lists.xenproject.org, Yoshinori Sato , Juan Quintela , Paul Durrant , Magnus Damm , Kamil Rytarowski , "Gonglei \(Arei\)" , =?UTF-8?Q?Herv=c3=a9_Poussineau?= , Michael Roth , Anthony Perard , =?UTF-8?Q?Marc-Andr=c3=a9_Lureau?= , Artyom Tarasenko , Laurent Vivier , Aleksandar Rikalo , Amit Shah , Mark Cave-Ayland , haxm-team@intel.com, Richard Henderson , Greg Kurz , Fabien Chouteau , Yuval Shaia , Thomas Huth , Eric Auger , Alex Williamson , qemu-arm@nongnu.org, =?UTF-8?Q?C=c3=a9dric_Le_Goater?= , Pavel Dovgalyuk , Paolo Bonzini , Keith Busch , qemu-ppc@nongnu.org, David Hildenbrand , John Snow , David Gibson , Eduardo Habkost , Vladimir Sementsov-Ogievskiy , =?UTF-8?Q?Daniel_P=2e_Berrang=c3=a9?= , qemu-block@nongnu.org, Max Filippov , qemu-s390x@nongnu.org, Patrick Venture , Cornelia Huck , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Jean-Christophe Dubois , Corey Minyard , Wenchao Wang , Igor Mammedov , "Dr. David Alan Gilbert" , Colin Xu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 15/3/22 14:59, Markus Armbruster wrote: > Alex Bennée writes: > >> Markus Armbruster writes: >> >>> g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, >>> for two reasons. One, it catches multiplication overflowing size_t. >>> Two, it returns T * rather than void *, which lets the compiler catch >>> more type errors. >>> >> >>> diff --git a/semihosting/config.c b/semihosting/config.c >>> index 137171b717..6d48ec9566 100644 >>> --- a/semihosting/config.c >>> +++ b/semihosting/config.c >>> @@ -98,7 +98,7 @@ static int add_semihosting_arg(void *opaque, >>> if (strcmp(name, "arg") == 0) { >>> s->argc++; >>> /* one extra element as g_strjoinv() expects NULL-terminated array */ >>> - s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *)); >>> + s->argv = g_renew(void *, s->argv, s->argc + 1); >> >> This did indeed break CI because s->argv is an array of *char: >> >> ../semihosting/config.c:101:17: error: assignment to ‘const char **’ from incompatible pointer type ‘void **’ [-Werror=incompatible-pointer-types] >> 101 | s->argv = g_renew(void *, s->argv, s->argc + 1); >> | ^ >> cc1: all warnings being treated as errors >> >> So it did the job of type checking but failed to build ;-) > > You found a hole in my compile testing, thanks! > > I got confused about the configuration of my build trees. Catching such > mistakes is what CI is for :) FYI Alex fixed this here: https://lore.kernel.org/qemu-devel/20220315121251.2280317-8-alex.bennee@linaro.org/ So your series could go on top (modulo the Coverity change).