From patchwork Wed Sep 2 16:10:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 255933 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A17EEC433E2 for ; Wed, 2 Sep 2020 16:13:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71E2B208C7 for ; Wed, 2 Sep 2020 16:13:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; 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t=1599063046; bh=1rYSiFR3IJ0WRBD3O988H5WFm4sGhmAqjZGJZ9WwYjU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1TRjuZhLRoasadr80vwGc4GRSVQ1QvS0v6W4Dgk1RZzI7z5txpN/jowIENK2J2Ooj MrXzTtWGl/p2cpJWNZm2LX9GSWPtPb9LKfcnscdcKFrIVjZ6pdTSorwhLR84fh5zBk YaoIbaaltd97p4knZRLUBmVOKhjZJIPZ7BQGjlv0= Received: from mchehab by mail.kernel.org with local (Exim 4.94) (envelope-from ) id 1kDVLQ-000tAk-9i; Wed, 02 Sep 2020 18:10:44 +0200 From: Mauro Carvalho Chehab Cc: Mauro Carvalho Chehab , Sakari Ailus , Greg Kroah-Hartman , linux-media@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH 24/38] media: atomisp: fix casts at atomisp_compat_ioctl32.c Date: Wed, 2 Sep 2020 18:10:27 +0200 Message-Id: <56c880b7f36d594104649135644355efeee45f48.1599062230.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org There are several warnings reported by sparse with regards to wrong typecasts: drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: expected void *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: warning: incorrect type in argument 2 (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: expected void const *from drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: got struct atomisp_3a_statistics [noderef] __user *kp drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: expected void [noderef] __user *effective_width drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: got unsigned int [usertype] * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: expected void [noderef] __user *effective_width drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: got unsigned int [usertype] * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: expected unsigned int [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: expected struct v4l2_framebuffer *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: expected void [noderef] __user *frame drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: got struct v4l2_framebuffer * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: expected unsigned short *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: expected void [noderef] __user *calb_grp_values drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: got unsigned short * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: expected unsigned short [usertype] *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: warning: cast removes address space '__user' of expression drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: warning: incorrect type in initializer (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: expected struct [noderef] __user *karg drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: got void * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:721:39: warning: cast removes address space '__user' of expression drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: warning: incorrect type in argument 1 (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: expected void const volatile [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: got unsigned int [usertype] *src drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: expected void *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: got void [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: expected struct atomisp_shading_table *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: got struct atomisp_shading_table [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: expected struct atomisp_morph_table *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: got struct atomisp_morph_table [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: expected struct atomisp_dis_coefficients *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: got struct atomisp_dis_coefficients [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: expected struct atomisp_dvs_6axis_config *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: got struct atomisp_dvs_6axis_config [noderef] __user * drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: warning: incorrect type in assignment (different address spaces) drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: expected struct atomisp_sensor_ae_bracketing_lut_entry *__pu_val drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: got void [noderef] __user * Use the same strategies used at v4l2-compat32.c, in order to solve them and avoid warnings. Signed-off-by: Mauro Carvalho Chehab --- .../atomisp/pci/atomisp_compat_ioctl32.c | 84 +++++++++++-------- 1 file changed, 48 insertions(+), 36 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c b/drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c index fa5918270614..e5553df5bad4 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c +++ b/drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c @@ -25,16 +25,26 @@ #include "atomisp_ioctl.h" #include "atomisp_compat_ioctl32.h" -/* Macro borrowed from v4l2-compat-ioctl32.c */ +/* Macros borrowed from v4l2-compat-ioctl32.c */ + +#define get_user_cast(__x, __ptr) \ +({ \ + get_user(__x, (typeof(*__ptr) __user *)(__ptr)); \ +}) + +#define put_user_force(__x, __ptr) \ +({ \ + put_user((typeof(*__x) __force *)(__x), __ptr); \ +}) + /* Use the same argument order as copy_in_user */ -#define assign_in_user(to, from) \ -({ \ - typeof(*from) __assign_tmp; \ - \ - get_user(__assign_tmp, from) || put_user(__assign_tmp, to); \ +#define assign_in_user(to, from) \ +({ \ + typeof(*from) __assign_tmp; \ + \ + get_user_cast(__assign_tmp, from) || put_user(__assign_tmp, to);\ }) - static int get_atomisp_histogram32(struct atomisp_histogram __user *kp, struct atomisp_histogram32 __user *up) { @@ -64,13 +74,13 @@ static int put_atomisp_histogram32(struct atomisp_histogram __user *kp, } static int get_v4l2_framebuffer32(struct v4l2_framebuffer __user *kp, - struct v4l2_framebuffer32 __user *up) + struct v4l2_framebuffer32 __user *up) { compat_uptr_t tmp; if (!access_ok(up, sizeof(struct v4l2_framebuffer32)) || get_user(tmp, &up->base) || - put_user(compat_ptr(tmp), &kp->base) || + put_user_force(compat_ptr(tmp), &kp->base) || assign_in_user(&kp->capability, &up->capability) || assign_in_user(&kp->flags, &up->flags) || copy_in_user(&kp->fmt, &up->fmt, sizeof(kp->fmt))) @@ -244,10 +254,10 @@ static int get_atomisp_dvs_6axis_config32(struct atomisp_dvs_6axis_config __user get_user(ycoords_y, &up->ycoords_y) || get_user(xcoords_uv, &up->xcoords_uv) || get_user(ycoords_uv, &up->ycoords_uv) || - put_user(compat_ptr(xcoords_y), &kp->xcoords_y) || - put_user(compat_ptr(ycoords_y), &kp->ycoords_y) || - put_user(compat_ptr(xcoords_uv), &kp->xcoords_uv) || - put_user(compat_ptr(ycoords_uv), &kp->ycoords_uv)) + put_user_force(compat_ptr(xcoords_y), &kp->xcoords_y) || + put_user_force(compat_ptr(ycoords_y), &kp->ycoords_y) || + put_user_force(compat_ptr(xcoords_uv), &kp->xcoords_uv) || + put_user_force(compat_ptr(ycoords_uv), &kp->ycoords_uv)) return -EFAULT; return 0; @@ -279,7 +289,7 @@ static int put_atomisp_3a_statistics32(struct atomisp_3a_statistics __user *kp, void __user *rgby_data; if (!access_ok(up, sizeof(struct atomisp_3a_statistics32)) || - copy_to_user(up, kp, sizeof(struct atomisp_grid_info)) || + copy_in_user(up, kp, sizeof(struct atomisp_grid_info)) || get_user(rgby_data, &kp->rgby_data) || put_user(ptr_to_compat(rgby_data), &up->rgby_data) || get_user(data, &kp->data) || @@ -305,7 +315,7 @@ static int get_atomisp_metadata_stat32(struct atomisp_metadata __user *kp, assign_in_user(&kp->stride, &up->stride) || assign_in_user(&kp->exp_id, &up->exp_id) || get_user(effective_width, &up->effective_width) || - put_user(compat_ptr(effective_width), &kp->effective_width)) + put_user_force(compat_ptr(effective_width), &kp->effective_width)) return -EFAULT; return 0; @@ -315,7 +325,7 @@ static int put_atomisp_metadata_stat32(struct atomisp_metadata __user *kp, struct atomisp_metadata32 __user *up) { void __user *data; - void __user *effective_width; + void *effective_width; if (!access_ok(up, sizeof(struct atomisp_metadata32)) || get_user(data, &kp->data) || @@ -325,7 +335,8 @@ static int put_atomisp_metadata_stat32(struct atomisp_metadata __user *kp, assign_in_user(&up->stride, &kp->stride) || assign_in_user(&up->exp_id, &kp->exp_id) || get_user(effective_width, &kp->effective_width) || - put_user(ptr_to_compat(effective_width), &up->effective_width)) + put_user(ptr_to_compat((void __user *)effective_width), + &up->effective_width)) return -EFAULT; return 0; @@ -336,7 +347,7 @@ put_atomisp_metadata_by_type_stat32(struct atomisp_metadata_with_type __user *kp struct atomisp_metadata_with_type32 __user *up) { void __user *data; - void __user *effective_width; + u32 *effective_width; if (!access_ok(up, sizeof(struct atomisp_metadata_with_type32)) || get_user(data, &kp->data) || @@ -346,7 +357,7 @@ put_atomisp_metadata_by_type_stat32(struct atomisp_metadata_with_type __user *kp assign_in_user(&up->stride, &kp->stride) || assign_in_user(&up->exp_id, &kp->exp_id) || get_user(effective_width, &kp->effective_width) || - put_user(ptr_to_compat(effective_width), + put_user(ptr_to_compat((void __user *)effective_width), &up->effective_width) || assign_in_user(&up->type, &kp->type)) return -EFAULT; @@ -369,7 +380,7 @@ get_atomisp_metadata_by_type_stat32(struct atomisp_metadata_with_type __user *kp assign_in_user(&kp->stride, &up->stride) || assign_in_user(&kp->exp_id, &up->exp_id) || get_user(effective_width, &up->effective_width) || - put_user(compat_ptr(effective_width), &kp->effective_width) || + put_user_force(compat_ptr(effective_width), &kp->effective_width) || assign_in_user(&kp->type, &up->type)) return -EFAULT; @@ -430,7 +441,7 @@ static int get_atomisp_overlay32(struct atomisp_overlay __user *kp, if (!access_ok(up, sizeof(struct atomisp_overlay32)) || get_user(frame, &up->frame) || - put_user(compat_ptr(frame), &kp->frame) || + put_user_force(compat_ptr(frame), &kp->frame) || assign_in_user(&kp->bg_y, &up->bg_y) || assign_in_user(&kp->bg_u, &up->bg_u) || assign_in_user(&kp->bg_v, &up->bg_v) || @@ -456,11 +467,11 @@ static int get_atomisp_overlay32(struct atomisp_overlay __user *kp, static int put_atomisp_overlay32(struct atomisp_overlay __user *kp, struct atomisp_overlay32 __user *up) { - void __user *frame; + void *frame; if (!access_ok(up, sizeof(struct atomisp_overlay32)) || get_user(frame, &kp->frame) || - put_user(ptr_to_compat(frame), &up->frame) || + put_user(ptr_to_compat((void __user *)frame), &up->frame) || assign_in_user(&up->bg_y, &kp->bg_y) || assign_in_user(&up->bg_u, &kp->bg_u) || assign_in_user(&up->bg_v, &kp->bg_v) || @@ -493,7 +504,7 @@ get_atomisp_calibration_group32(struct atomisp_calibration_group __user *kp, assign_in_user(&kp->size, &up->size) || assign_in_user(&kp->type, &up->type) || get_user(calb_grp_values, &up->calb_grp_values) || - put_user(compat_ptr(calb_grp_values), &kp->calb_grp_values)) + put_user_force(compat_ptr(calb_grp_values), &kp->calb_grp_values)) return -EFAULT; return 0; @@ -503,13 +514,14 @@ static int put_atomisp_calibration_group32(struct atomisp_calibration_group __user *kp, struct atomisp_calibration_group32 __user *up) { - void __user *calb_grp_values; + void *calb_grp_values; if (!access_ok(up, sizeof(struct atomisp_calibration_group32)) || assign_in_user(&up->size, &kp->size) || assign_in_user(&up->type, &kp->type) || get_user(calb_grp_values, &kp->calb_grp_values) || - put_user(ptr_to_compat(calb_grp_values), &up->calb_grp_values)) + put_user(ptr_to_compat((void __user *)calb_grp_values), + &up->calb_grp_values)) return -EFAULT; return 0; @@ -523,7 +535,7 @@ static int get_atomisp_acc_fw_load32(struct atomisp_acc_fw_load __user *kp, if (!access_ok(up, sizeof(struct atomisp_acc_fw_load32)) || assign_in_user(&kp->size, &up->size) || assign_in_user(&kp->fw_handle, &up->fw_handle) || - get_user(data, &up->data) || + get_user_cast(data, &up->data) || put_user(compat_ptr(data), &kp->data)) return -EFAULT; @@ -627,7 +639,7 @@ static int get_atomisp_shading_table32(struct atomisp_shading_table __user *kp, compat_uptr_t tmp; if (get_user(tmp, &up->data[n]) || - put_user(compat_ptr(tmp), &kp->data[n])) + put_user_force(compat_ptr(tmp), &kp->data[n])) return -EFAULT; } return 0; @@ -712,17 +724,17 @@ static int get_atomisp_parameters32(struct atomisp_parameters __user *kp, struct atomisp_morph_table morph_table; struct atomisp_dis_coefficients dvs2_coefs; struct atomisp_dvs_6axis_config dvs_6axis_config; - } __user *karg = (void *)(kp + 1); + } __user *karg = (void __user *)(kp + 1); if (!access_ok(up, sizeof(struct atomisp_parameters32))) return -EFAULT; while (n >= 0) { - compat_uptr_t *src = (compat_uptr_t *)up + n; + compat_uptr_t __user *src = (compat_uptr_t __user *)up + n; void * __user *dst = (void * __user *)kp + n; compat_uptr_t tmp; - if (get_user(tmp, src) || put_user(compat_ptr(tmp), dst)) + if (get_user_cast(tmp, src) || put_user_force(compat_ptr(tmp), dst)) return -EFAULT; n--; } @@ -738,26 +750,26 @@ static int get_atomisp_parameters32(struct atomisp_parameters __user *kp, /* handle shading table */ if (stp && (get_atomisp_shading_table32(&karg->shading_table, compat_ptr(stp)) || - put_user(&karg->shading_table, &kp->shading_table))) + put_user_force(&karg->shading_table, &kp->shading_table))) return -EFAULT; /* handle morph table */ if (mtp && (get_atomisp_morph_table32(&karg->morph_table, compat_ptr(mtp)) || - put_user(&karg->morph_table, &kp->morph_table))) + put_user_force(&karg->morph_table, &kp->morph_table))) return -EFAULT; /* handle dvs2 coefficients */ if (dcp && (get_atomisp_dis_coefficients32(&karg->dvs2_coefs, compat_ptr(dcp)) || - put_user(&karg->dvs2_coefs, &kp->dvs2_coefs))) + put_user_force(&karg->dvs2_coefs, &kp->dvs2_coefs))) return -EFAULT; /* handle dvs 6axis configuration */ if (dscp && (get_atomisp_dvs_6axis_config32(&karg->dvs_6axis_config, compat_ptr(dscp)) || - put_user(&karg->dvs_6axis_config, &kp->dvs_6axis_config))) + put_user_force(&karg->dvs_6axis_config, &kp->dvs_6axis_config))) return -EFAULT; return 0; @@ -814,7 +826,7 @@ get_atomisp_sensor_ae_bracketing_lut(struct atomisp_sensor_ae_bracketing_lut __u if (!access_ok(up, sizeof(struct atomisp_sensor_ae_bracketing_lut32)) || assign_in_user(&kp->lut_size, &up->lut_size) || get_user(lut, &up->lut) || - put_user(compat_ptr(lut), &kp->lut)) + put_user_force(compat_ptr(lut), &kp->lut)) return -EFAULT; return 0;