From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH v3 2/7] vfio: platform: add capability to register a reset function Date: Fri, 23 Oct 2015 15:07:37 +0200 Message-ID: <5723752.hDK15zeNcm@wuerfel> References: <1445603835-14506-1-git-send-email-eric.auger@linaro.org> <1445603835-14506-3-git-send-email-eric.auger@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, patches@linaro.org, linux-kernel@vger.kernel.org, alex.williamson@redhat.com, eric.auger@st.com, kvmarm@lists.cs.columbia.edu To: linux-arm-kernel@lists.infradead.org Return-path: In-Reply-To: <1445603835-14506-3-git-send-email-eric.auger@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org On Friday 23 October 2015 14:37:10 Eric Auger wrote: > + > +void vfio_platform_unregister_reset(const char *compat) > +{ > + struct vfio_platform_reset_node *iter, *temp; > + > + mutex_lock(&driver_lock); > + list_for_each_entry_safe(iter, temp, &reset_list, link) { > + if (!strcmp(iter->compat, compat)) { > + list_del(&iter->link); > + break; > + } > + } > + > + mutex_unlock(&driver_lock); > +} > +EXPORT_SYMBOL_GPL(vfio_platform_unregister_reset); > This is slightly unsafe in case you ever get two drivers that register with the same compat string. If we care about that, we could pass and compare both the string and the function pointer, or the vfio_platform_reset_node. Arnd