Please remove unsupported %f in format string

[jim.cromie at gmail.com]

while booting with drm.debug=0x3ff on cmdline, I saw this complaint.

I can go looking for it at some point, but I should report it now.


[    7.401934] fbcon: amdgpudrmfb (fb0) is primary device
[    7.401999] [drm] DSC precompute is not needed.
[    7.402114] ------------[ cut here ]------------
[    7.402115] Please remove unsupported %f in format string
[    7.402126] WARNING: CPU: 1 PID: 526 at lib/vsprintf.c:2656
format_decode+0x441/0x540
[    7.402132] Modules linked in: amdgpu(+) drm_ttm_helper ttm video
iommu_v2 gpu_sched i2c_algo_bit drm_buddy drm_display_helper
drm_kms_helper drm crct10dif_pclmul crc32_pclmul crc32c_intel nvme cc
p ghash_clmulni_intel sp5100_tco nvme_core cec r8169 wmi ip6_tables
ip_tables fuse
[    7.402146] CPU: 1 PID: 526 Comm: systemd-udevd Not tainted
6.0.0-kj-09699-g8419b52b1e22 #12
[    7.402148] Hardware name: MicroElectronics G464/TUF GAMING
X570-PLUS (WI-FI), BIOS 9004 10/10/2019
[    7.402150] RIP: 0010:format_decode+0x441/0x540
[    7.402152] Code: ff ff c6 45 05 08 ba 12 00 00 00 e9 9b fc ff ff
0f be f2 48 c7 c7 40 e9 6b b8 48 89 04 24 c6 05 28 ee 8e 01 01 e8 8d
ff 57 00 <0f> 0b 48 8b 04 24 e9 fc fd ff ff 48 8d 7c 24 08 e8
 aa f3 ff ff 88
[    7.402154] RSP: 0018:ffffaa4300a76e58 EFLAGS: 00010292
[    7.402155] RAX: 000000000000002d RBX: ffffffffc0ccb295 RCX: 0000000000000000
[    7.402157] RDX: 0000000000000003 RSI: ffffffffb86a0b3f RDI: 00000000ffffffff
[    7.402157] RBP: ffffaa4300a76e90 R08: ffffffffb8e78120 R09: ffffaa4300a76df8
[    7.402159] R10: 3fffffffffffffff R11: 000000000000002f R12: ffff8bdc3ea6ee80
[    7.402159] R13: ffffffffc0ccb295 R14: 00000000000000da R15: ffff8bdc3ea6edb8
[    7.402160] FS:  00007fa035678580(0000) GS:ffff8bdc3ea40000(0000)
knlGS:0000000000000000
[    7.402162] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.402163] CR2: 000055bf740fc1d0 CR3: 0000000128d9e000 CR4: 0000000000350ee0
[    7.402164] Call Trace:
[    7.402166]  <TASK>
[    7.402170]  vsnprintf+0x5d/0x550
[    7.402173]  va_format.constprop.0+0x61/0xf0
[    7.402175]  vsnprintf+0x184/0x550
[    7.402178]  vscnprintf+0xe/0x30
[    7.402180]  ddebug_trace+0x72/0x150
[    7.402183]  ddebug_printk+0x66/0xa0
[    7.402185]  __dynamic_pr_debug+0xd3/0x110
[    7.402189]  CalculatePrefetchSchedule.constprop.0+0x6c3/0xee0 [amdgpu]
[    7.402430]  ? trace_event_buffer_commit+0x59/0x250
[    7.402434]
dml20v2_ModeSupportAndSystemConfigurationFull+0x4a00/0x5d50 [amdgpu]
[    7.402630]  ? dml_get_voltage_level+0x15c/0x270 [amdgpu]