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| author | Arnd Bergmann <[email protected]> | 2021-03-23 13:04:20 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-04-09 20:42:25 +0000 |
| commit | 19c383affd5866fffe7646b913aa78cbdd608325 (patch) | |
| tree | c80d85faaba1c8b31d04d03c36e8fa3d5f1da94e /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | amdgpu: avoid incorrect %hu format string (diff) | |
| download | kernel-19c383affd5866fffe7646b913aa78cbdd608325.tar.gz kernel-19c383affd5866fffe7646b913aa78cbdd608325.zip | |
amdgpu: fix gcc -Wrestrict warning
gcc warns about an sprintf() that uses the same buffer as source
and destination, which is undefined behavior in C99:
drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c: In function 'amdgpu_securedisplay_debugfs_write':
drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c:141:6: error: 'sprintf' argument 3 overlaps destination object 'i2c_output' [-Werror=restrict]
141 | sprintf(i2c_output, "%s 0x%X", i2c_output,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
142 | securedisplay_cmd->securedisplay_out_message.send_roi_crc.i2c_buf[i]);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c:97:7: note: destination object referenced by 'restrict'-qualified argument 1 was declared here
97 | char i2c_output[256];
| ^~~~~~~~~~
Rewrite it to remember the current offset into the buffer instead.
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions