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Thu, 24 Sep 2026 15:24:48 -0700 (PDT) From: Alex Elder To: bhelgaas@google.com Cc: lizhi.hou@amd.com, herve.codina@bootlin.com, andrea.porta@suse.com, daniel@riscstar.com, mohdayaa@qti.qualcomm.com, lbiancon@qti.qualcomm.com, mani@kernel.org, robh@kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/3] PCI: of: make a flags argument optional Date: Thu, 24 Sep 2026 17:24:41 -0500 Message-ID: <20260924222444.1351466-2-elder@riscstar.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260924222444.1351466-1-elder@riscstar.com> References: <20260924222444.1351466-1-elder@riscstar.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The address of a u32 object is passed to of_pci_get_addr_flags() so it can be filled with the computed flags value. Allow a null pointer to be passed, so that the validity of the resource's flags can be checked without filling in the flags value. Signed-off-by: Alex Elder --- drivers/pci/of_property.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/pci/of_property.c b/drivers/pci/of_property.c index 1e5d7dde467b8..a6c0cca986bdc 100644 --- a/drivers/pci/of_property.c +++ b/drivers/pci/of_property.c @@ -82,9 +82,11 @@ static int of_pci_get_addr_flags(const struct resource *res, u32 *flags) else return -EINVAL; - *flags = FIELD_PREP(OF_PCI_ADDR_FIELD_SS, ss); - if (res->flags & IORESOURCE_PREFETCH) - *flags |= OF_PCI_ADDR_FIELD_PREFETCH; + if (flags) { + *flags = FIELD_PREP(OF_PCI_ADDR_FIELD_SS, ss); + if (res->flags & IORESOURCE_PREFETCH) + *flags |= OF_PCI_ADDR_FIELD_PREFETCH; + } return 0; } -- 2.53.0