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([49.34.103.77]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3147e0818e4sm482146eec.22.2026.07.21.09.36.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2026 09:36:05 -0700 (PDT) From: Prajval Chaudhary To: Andy Shevchenko , Hans de Goede , Mauro Carvalho Chehab Cc: Sakari Ailus , Greg Kroah-Hartman , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Prajval Chaudhary Subject: [PATCH v4 1/2] staging: media: atomisp: Remove pad_w and pad_h module parameters Date: Tue, 21 Jul 2026 22:05:31 +0530 Message-Id: <20260721163533.15888-2-prajvalchaudhari733@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260721163533.15888-1-prajvalchaudhari733@gmail.com> References: <20260721163533.15888-1-prajvalchaudhari733@gmail.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" Remove the 'pad_w' and 'pad_h' module parameters to prevent userspace from overriding internal ISP hardware padding boundaries. Convert them into internal driver constants instead. Signed-off-by: Prajval Chaudhary --- drivers/staging/media/atomisp/pci/atomisp_common.h | 4 ++-- drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 8 ++------ 2 files changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_common.h b/drivers/s= taging/media/atomisp/pci/atomisp_common.h index a2462fc306fb..7c6c0124ff72 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_common.h +++ b/drivers/staging/media/atomisp/pci/atomisp_common.h @@ -22,8 +22,8 @@ =20 extern int dbg_level; extern int dbg_func; -extern int pad_w; -extern int pad_h; +extern const int pad_w; +extern const int pad_h; =20 /* Minimum padding requirements for ISP2400 (BYT) */ #define ISP2400_MIN_PAD_W 12 diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/sta= ging/media/atomisp/pci/atomisp_v4l2.c index 812230397409..d117fea2860c 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c +++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c @@ -64,13 +64,9 @@ MODULE_PARM_DESC(dbg_func, * output res, and isp output res. however since we do not have this yet, * the chosen solution is the next best thing. */ -int pad_w =3D 16; -module_param(pad_w, int, 0644); -MODULE_PARM_DESC(pad_w, "extra data for ISP processing"); +const int pad_w =3D 16; =20 -int pad_h =3D 16; -module_param(pad_h, int, 0644); -MODULE_PARM_DESC(pad_h, "extra data for ISP processing"); +const int pad_h =3D 16; =20 /* * FIXME: this is a hack to make easier to support ISP2401 variant. --=20 2.34.1 From nobody Sat Jul 25 00:11:23 2026 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BB4263242BC for ; Tue, 21 Jul 2026 16:36:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784651815; cv=none; b=k+FIVFtvVMz7MOqqDjc8v+xGsbzEYvMV6OXBrhhhykQiKP88fU99npOJ3jR0fN4dlj6lKWbo+2nteNM0UpJxiQuj3Xe9jijn2wJvAX5/3QW5K+B6ta3LLAcz/PMlNdEYWB2HpjfqBbKIh7dD8Qh0+g8y1raDibtmjuQvlx3y1gw= ARC-Message-Signature: i=1; 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([49.34.103.77]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3147e0818e4sm482146eec.22.2026.07.21.09.36.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2026 09:36:52 -0700 (PDT) From: Prajval Chaudhary To: Andy Shevchenko , Hans de Goede , Mauro Carvalho Chehab Cc: Sakari Ailus , Greg Kroah-Hartman , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Prajval Chaudhary Subject: [PATCH v4 2/2] staging: media: atomisp: Remove dbg_level and dbg_func module parameters Date: Tue, 21 Jul 2026 22:05:32 +0530 Message-Id: <20260721163533.15888-3-prajvalchaudhari733@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260721163533.15888-1-prajvalchaudhari733@gmail.com> References: <20260721163533.15888-1-prajvalchaudhari733@gmail.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" Remove the 'dbg_level' and 'dbg_func' module parameters to align the driver's debug facility with standard Linux kernel APIs (printk/vprintk). The internal logic relying on custom debug parameters has been updated so that message logging and function tracing no longer depend on exposed userspace module parameters. Signed-off-by: Prajval Chaudhary --- drivers/staging/media/atomisp/pci/atomisp_common.h | 2 -- .../staging/media/atomisp/pci/atomisp_compat_css20.c | 12 +++--------- drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 7 ------- .../pci/runtime/debug/interface/ia_css_debug.h | 7 +++---- .../atomisp/pci/runtime/debug/src/ia_css_debug.c | 4 ++-- 5 files changed, 8 insertions(+), 24 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_common.h b/drivers/s= taging/media/atomisp/pci/atomisp_common.h index 7c6c0124ff72..aa230c3708dd 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_common.h +++ b/drivers/staging/media/atomisp/pci/atomisp_common.h @@ -20,8 +20,6 @@ =20 #include "ia_css.h" =20 -extern int dbg_level; -extern int dbg_func; extern const int pad_w; extern const int pad_h; =20 diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/dri= vers/staging/media/atomisp/pci/atomisp_compat_css20.c index ea49ebe2da5c..647f6e7e2455 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c +++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c @@ -784,7 +784,7 @@ int atomisp_css_load_firmware(struct atomisp_device *is= p) isp->css_env.isp_css_env.hw_access_env.load =3D atomisp_css2_hw_load; isp->css_env.isp_css_env.hw_access_env.store =3D atomisp_css2_hw_store; =20 - __set_css_print_env(isp, dbg_func); + __set_css_print_env(isp, 1); =20 isp->css_env.isp_css_env.print_env.error_print =3D atomisp_vprintk; =20 @@ -3372,18 +3372,12 @@ void atomisp_css_set_isp_config_applied_frame(struc= t atomisp_sub_device *asd, =20 int atomisp_get_css_dbgfunc(void) { - return dbg_func; + return 1; } =20 int atomisp_set_css_dbgfunc(struct atomisp_device *isp, int opt) { - int ret; - - ret =3D __set_css_print_env(isp, opt); - if (ret =3D=3D 0) - dbg_func =3D opt; - - return ret; + return __set_css_print_env(isp, opt); } =20 void atomisp_en_dz_capt_pipe(struct atomisp_sub_device *asd, bool enable) diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/sta= ging/media/atomisp/pci/atomisp_v4l2.c index d117fea2860c..55b3d4d3d6ad 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c +++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c @@ -45,15 +45,8 @@ #define CSTATE_EXIT_LATENCY_C1 1 =20 /* cross component debug message flag */ -int dbg_level; -module_param(dbg_level, int, 0644); -MODULE_PARM_DESC(dbg_level, "debug message level (default:0)"); =20 /* log function switch */ -int dbg_func =3D 1; -module_param(dbg_func, int, 0644); -MODULE_PARM_DESC(dbg_func, - "log function switch non/printk (default:printk)"); =20 /* * Set to 16x16 since this is the amount of lines and pixels the sensor diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_c= ss_debug.h b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_c= ss_debug.h index 2d0e906530af..029adbdca945 100644 --- a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debu= g.h +++ b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debu= g.h @@ -8,7 +8,7 @@ #define _IA_CSS_DEBUG_H_ =20 /*! \file */ - +#include #include #include #include @@ -39,7 +39,6 @@ #define IA_CSS_DEBUG_INFO 9 =20 /* Global variable which controls the verbosity levels of the debug tracin= g */ -extern int dbg_level; =20 /*! @brief Enum defining the different isp parameters to dump. * Values can be combined to dump a combination of sets. @@ -125,8 +124,8 @@ static inline void __printf(2, 0) ia_css_debug_vdtrace(= unsigned int level, const char *fmt, va_list args) { - if (dbg_level >=3D level) - sh_css_vprint(fmt, args); + if (level <=3D IA_CSS_DEBUG_WARNING) + vprintk(fmt, args); } =20 __printf(2, 3) void ia_css_debug_dtrace(unsigned int level, diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_deb= ug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c index 5113aa5973f3..86b2cca2f441 100644 --- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c +++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c @@ -135,13 +135,13 @@ void ia_css_debug_dtrace(unsigned int level, const ch= ar *fmt, ...) =20 void ia_css_debug_set_dtrace_level(const unsigned int trace_level) { - dbg_level =3D trace_level; + /* Trace level is now controlled dynamically via Linux kernel dynamic deb= ug facility */ return; } =20 unsigned int ia_css_debug_get_dtrace_level(void) { - return dbg_level; + return 0; } =20 static const char *debug_stream_format2str(const enum atomisp_input_format --=20 2.34.1