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Message-ID: <ZIw2kdx9+DCmUZUV@ashyti-mobl2.lan>
Date: Fri, 16 Jun 2023 12:16:49 +0200
From: Andi Shyti <andi.shyti@...ux.intel.com>
To: Arnd Bergmann <arnd@...nel.org>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Andi Shyti <andi.shyti@...ux.intel.com>,
Arnd Bergmann <arnd@...db.de>,
Matt Roper <matthew.d.roper@...el.com>,
Lucas De Marchi <lucas.demarchi@...el.com>,
Imre Deak <imre.deak@...el.com>,
Alan Previn <alan.previn.teres.alexis@...el.com>,
Anshuman Gupta <anshuman.gupta@...el.com>,
intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/i915: make i915_drm_client_fdinfo() reference
conditional again
Hi Arnd,
On Fri, Jun 16, 2023 at 11:31:47AM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
>
> The function is only defined if CONFIG_PROC_FS is enabled:
>
> ld.lld: error: undefined symbol: i915_drm_client_fdinfo
> >>> referenced by i915_driver.c
> >>> drivers/gpu/drm/i915/i915_driver.o:(i915_drm_driver) in archive vmlinux.a
>
> Use the PTR_IF() helper to make the reference NULL otherwise.
>
> Fixes: e894b724c316d ("drm/i915: Use the fdinfo helper")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
> drivers/gpu/drm/i915/i915_driver.c | 2 +-
> drivers/gpu/drm/i915/i915_drm_client.h | 2 --
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 75cbc43b326dd..0ad0c5885ec27 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -1816,7 +1816,7 @@ static const struct drm_driver i915_drm_driver = {
> .open = i915_driver_open,
> .lastclose = i915_driver_lastclose,
> .postclose = i915_driver_postclose,
> - .show_fdinfo = i915_drm_client_fdinfo,
> + .show_fdinfo = PTR_IF(IS_ENABLED(CONFIG_PROC_FS), i915_drm_client_fdinfo),
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> diff --git a/drivers/gpu/drm/i915/i915_drm_client.h b/drivers/gpu/drm/i915/i915_drm_client.h
> index 4c18b99e10a4e..67816c912bca1 100644
> --- a/drivers/gpu/drm/i915/i915_drm_client.h
> +++ b/drivers/gpu/drm/i915/i915_drm_client.h
> @@ -47,8 +47,6 @@ static inline void i915_drm_client_put(struct i915_drm_client *client)
>
> struct i915_drm_client *i915_drm_client_alloc(void);
>
> -#ifdef CONFIG_PROC_FS
> void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
> -#endif
nice! This is becoming the new trend now.
Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com>
Andi
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