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Box" To: thomas.hellstrom@linux.intel.com, rodrigo.vivi@intel.com, irenic.rajneesh@gmail.com, ilpo.jarvinen@linux.intel.com, srinivas.pandruvada@linux.intel.com, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, xi.pardee@linux.intel.com Cc: "David E. Box" , hansg@kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v2 2/6] platform/x86/intel/vsec: Make driver_data info const Date: Wed, 21 Jan 2026 17:49:43 -0800 Message-ID: <20260122014948.3158069-3-david.e.box@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260122014948.3158069-1-david.e.box@linux.intel.com> References: <20260122014948.3158069-1-david.e.box@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Treat PCI id->driver_data (intel_vsec_platform_info) as read-only by making vsec_priv->info a const pointer and updating all function signatures to accept const intel_vsec_platform_info *. This improves const-correctness and clarifies that the platform info data from the driver_data table is not meant to be modified at runtime. No functional changes intended. Signed-off-by: David E. Box --- v2: - New patch drivers/platform/x86/intel/vsec.c | 20 ++++++++++---------- include/linux/intel_vsec.h | 4 ++-- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel= /vsec.c index a10e2c65205c..61b32ae7f064 100644 --- a/drivers/platform/x86/intel/vsec.c +++ b/drivers/platform/x86/intel/vsec.c @@ -42,7 +42,7 @@ enum vsec_device_state { }; =20 struct vsec_priv { - struct intel_vsec_platform_info *info; + const struct intel_vsec_platform_info *info; struct device *suppliers[VSEC_FEATURE_COUNT]; struct oobmsm_plat_info plat_info; enum vsec_device_state state[VSEC_FEATURE_COUNT]; @@ -270,7 +270,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct dev= ice *parent, EXPORT_SYMBOL_NS_GPL(intel_vsec_add_aux, "INTEL_VSEC"); =20 static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_head= er *header, - struct intel_vsec_platform_info *info, + const struct intel_vsec_platform_info *info, unsigned long cap_id, u64 base_addr) { struct intel_vsec_device __free(kfree) *intel_vsec_dev =3D NULL; @@ -406,7 +406,7 @@ static int get_cap_id(u32 header_id, unsigned long *cap= _id) =20 static int intel_vsec_register_device(struct pci_dev *pdev, struct intel_vsec_header *header, - struct intel_vsec_platform_info *info, + const struct intel_vsec_platform_info *info, u64 base_addr) { const struct vsec_feature_dependency *consumer_deps; @@ -452,7 +452,7 @@ static int intel_vsec_register_device(struct pci_dev *p= dev, } =20 static bool intel_vsec_walk_header(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { struct intel_vsec_header **header =3D info->headers; bool have_devices =3D false; @@ -468,7 +468,7 @@ static bool intel_vsec_walk_header(struct pci_dev *pdev, } =20 static bool intel_vsec_walk_dvsec(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool have_devices =3D false; int pos =3D 0; @@ -519,7 +519,7 @@ static bool intel_vsec_walk_dvsec(struct pci_dev *pdev, } =20 static bool intel_vsec_walk_vsec(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool have_devices =3D false; int pos =3D 0; @@ -565,7 +565,7 @@ static bool intel_vsec_walk_vsec(struct pci_dev *pdev, } =20 int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { if (!pdev || !info || !info->headers) return -EINVAL; @@ -578,7 +578,7 @@ int intel_vsec_register(struct pci_dev *pdev, EXPORT_SYMBOL_NS_GPL(intel_vsec_register, "INTEL_VSEC"); =20 static bool intel_vsec_get_features(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { bool found =3D false; =20 @@ -622,7 +622,7 @@ static void intel_vsec_skip_missing_dependencies(struct= pci_dev *pdev) =20 static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_dev= ice_id *id) { - struct intel_vsec_platform_info *info; + const struct intel_vsec_platform_info *info; struct vsec_priv *priv; int num_caps, ret; int run_once =3D 0; @@ -633,7 +633,7 @@ static int intel_vsec_pci_probe(struct pci_dev *pdev, c= onst struct pci_device_id return ret; =20 pci_save_state(pdev); - info =3D (struct intel_vsec_platform_info *)id->driver_data; + info =3D (const struct intel_vsec_platform_info *)id->driver_data; if (!info) return -EINVAL; =20 diff --git a/include/linux/intel_vsec.h b/include/linux/intel_vsec.h index 1a0f357c2427..d551174b0049 100644 --- a/include/linux/intel_vsec.h +++ b/include/linux/intel_vsec.h @@ -200,13 +200,13 @@ static inline struct intel_vsec_device *auxdev_to_ivd= ev(struct auxiliary_device =20 #if IS_ENABLED(CONFIG_INTEL_VSEC) int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info); + const struct intel_vsec_platform_info *info); int intel_vsec_set_mapping(struct oobmsm_plat_info *plat_info, struct intel_vsec_device *vsec_dev); struct oobmsm_plat_info *intel_vsec_get_mapping(struct pci_dev *pdev); #else static inline int intel_vsec_register(struct pci_dev *pdev, - struct intel_vsec_platform_info *info) + const struct intel_vsec_platform_info *info) { return -ENODEV; } --=20 2.43.0