Re: [PATCH] drm/amdgpu: fix printk format for size_t variable

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On 2/21/22 12:53 PM, Luben Tuikov wrote:
On 2022-02-21 15:36, Tom Rix wrote:
On 2/21/22 11:57 AM, Luben Tuikov wrote:
Hi Tom,

This was already fixed with this patch, and LKML was CC-ed. See the CC tags in the patch below,

commit 4f7d7cda90cbd7
Author: Luben Tuikov <luben.tuikov@xxxxxxx>
Date:   Wed Feb 16 16:47:32 2022 -0500

      drm/amdgpu: Fix ARM compilation warning
Fix this ARM warning:
I glad it wasn't just mips ;)

There have been a couple of build breaks with amdgpu recently.

Nick asked about adding clang to your ci.

Could at least one non x86_64 gcc also be added, maybe aarch64 ?
Yeah, that's a great idea. I tried the make.cross (for ARM) as per
the initial breakage report, but when I tried it, it got into a loop of
"make ARCH=arm mrproper" --> "make prepare" --> "make ARCH=arm mrproper" --> "make prepare" --> ...
and I couldn't figure out why.
Maybe need to set CROSS_COMPILE ?
I don't mind adding ARM cross compilation into my local setup.

For crosses, I generate a 'make' script like

#!/bin/sh

export PATH=<path-to-cross-tools>/bin:$PATH

make ARCH=arm64 CROSS_COMPILE=aarch64-elf- $@

so workflow looks like normal, replacing make with ./make

Tom


Regards,
Luben


Tom

drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:664:35: warning: format '%ld'
      expects argument of type 'long int', but argument 4 has type 'size_t' {aka
      'unsigned int'} [-Wformat=]
Cc: Alex Deucher <Alexander.Deucher@xxxxxxx>
      Cc: kbuild-all@xxxxxxxxxxxx
      Cc: linux-kernel@xxxxxxxxxxxxxxx
      Reported-by: kernel test robot <lkp@xxxxxxxxx>
      Fixes: 7e60fbfbdc10a0 ("drm/amdgpu: Show IP discovery in sysfs")
      Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
      Acked-by: Alex Deucher <Alexander.Deucher@xxxxxxx>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 2506bcf36c870c..6c7ec058125e1d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -668,7 +668,7 @@ static int amdgpu_discovery_sysfs_ips(struct amdgpu_device *adev,
                              le16_to_cpu(ip->hw_id) != ii)
                                  goto next_ip;
- DRM_DEBUG("match:%d @ ip_offset:%ld", ii, ip_offset);
+                       DRM_DEBUG("match:%d @ ip_offset:%zu", ii, ip_offset);
/* We have a hw_id match; register the hw
                           * block if not yet registered.

Regards,
Luben

On 2022-02-21 12:37, trix@xxxxxxxxxx wrote:
From: Tom Rix <trix@xxxxxxxxxx>

On mips64 allyesconfig, there is this build break
amdgpu_discovery.c:671:35: error: format '%ld' expects
    argument of type 'long int', but argument 4 has
    type 'size_t' {aka 'unsigned int'}
    DRM_DEBUG("match:%d @ ip_offset:%ld", ii, ip_offset);

For size_t, use %zu.

Fixes: a6c40b178092 ("drm/amdgpu: Show IP discovery in sysfs")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
   drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 +-
   1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 7c7e28fd912e..58238f67b1d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -668,7 +668,7 @@ static int amdgpu_discovery_sysfs_ips(struct amdgpu_device *adev,
   			    le16_to_cpu(ip->hw_id) != ii)
   				goto next_ip;
- DRM_DEBUG("match:%d @ ip_offset:%ld", ii, ip_offset);
+			DRM_DEBUG("match:%d @ ip_offset:%zu", ii, ip_offset);
/* We have a hw_id match; register the hw
   			 * block if not yet registered.
Regards,
Regards,




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