From mboxrd@z Thu Jan 1 00:00:00 1970 From: l.stach@pengutronix.de (Lucas Stach) Date: Mon, 15 Sep 2014 16:00:48 +0200 Subject: [PATCH v1 03/21] MSI: Remove the redundant irq_set_chip_data() In-Reply-To: <1409911806-10519-4-git-send-email-wangyijing@huawei.com> References: <1409911806-10519-1-git-send-email-wangyijing@huawei.com> <1409911806-10519-4-git-send-email-wangyijing@huawei.com> Message-ID: <1410789648.3314.5.camel@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Am Freitag, den 05.09.2014, 18:09 +0800 schrieb Yijing Wang: > Currently, pcie-designware, pcie-rcar, pci-tegra drivers > use irq chip_data to save the msi_chip pointer. They > already call irq_set_chip_data() in their own MSI irq map > functions. So irq_set_chip_data() in arch_setup_msi_irq() > is useless. > > Signed-off-by: Yijing Wang > --- > drivers/pci/msi.c | 2 -- > 1 files changed, 0 insertions(+), 2 deletions(-) > > diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c > index f6cb317..d547f7f 100644 > --- a/drivers/pci/msi.c > +++ b/drivers/pci/msi.c > @@ -41,8 +41,6 @@ int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) > if (err < 0) > return err; > > - irq_set_chip_data(desc->irq, chip); > - > return 0; > } > arch_teardown_msi_irq() expects to find the msi_chip in the irq chip_data field. As this means drivers don't have any reasonable other possibility to stuff things into this field, I think it would make sense to do the cleanup the other way around: keep the irq_set_chip_data arch_setup_msi_irq() and rip it out of the individual drivers. Regards, Lucas -- Pengutronix e.K. | Lucas Stach | Industrial Linux Solutions | http://www.pengutronix.de/ |