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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Ivy Lopez Subject: [PATCH] net: starfire: fix ioaddr sign-extension causing ioremap() failure Date: Sat, 15 Aug 2026 13:24:32 -0600 Message-ID: <20260815192432.38951-1-skunkolee@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ioaddr is declared as a signed long, but is assigned the result of pci_resource_start(), which returns an unsigned resource_size_t. On configurations where the BAR address has its high bit set, the value sign-extends when passed to ioremap(), producing a bogus 64-bit address and causing device probe to fail: ioremap: invalid physical address fffffffffe480000 starfire 0000:08:04.0: cannot Remap 0x80000 @ 0xfe480000, aborting Change ioaddr to unsigned long so pci_resource_start()'s value is preserved correctly. Link: https://bugzilla.kernel.org/show_bug.cgi?id=198035 Signed-off-by: Ivy Lopez Signed-off-by: Ivy Lopez --- drivers/net/ethernet/adaptec/starfire.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c index f1109d90e1fc..b72b393e6fb2 100644 --- a/drivers/net/ethernet/adaptec/starfire.c +++ b/drivers/net/ethernet/adaptec/starfire.c @@ -634,7 +634,7 @@ static int starfire_init_one(struct pci_dev *pdev, int i, irq, chip_idx = ent->driver_data; struct net_device *dev; u8 addr[ETH_ALEN]; - long ioaddr; + unsigned long ioaddr; void __iomem *base; int drv_flags, io_size; int boguscnt; -- 2.55.0