Can't get vermagic to match on Linux NVMe driver

Question

I ultmiately want to compile a modified NVMe driver on Rocky, but currently am working on compiling the existing NVMe driver as is to test. I am able to successfully compile the driver. I'm trying to make the version magic match between the original driver and my current driver but haven't been successful.

How I'm Compiling

Get the correct source:

dnf install -y kernel-headers ncurses-devel
dnf download --source kernel
rpm2cpio kernel-5.14.0-362.18.1.el9_3.src.rpm | cpio -idmv
tar -xf linux-5.14.0-362.18.1.el9_3.tar.xz

Get Module.symvers file from the kernel headers directory

cp /usr/src/kernels/5.14.0-362.18.1.el9_3.x86_64/Module.symvers <current_dir>

Make it. In the menuconfig I have simplified it to just this:

make menuconfig
make clean
make -j$(nproc --all) modules_prepare
make -j$(nproc --all) oldconfig && make -j$(nproc --all) prepare
make ARCH=x86_64 -j$(nproc --all) M=drivers/nvme

Version Magic Strings

But when I check version magic they're still different and I don't understand why:

[root@nvmetest linux-5.14.0-362.18.1.el9_3]# !mod
modinfo ./drivers/nvme/host/nvme-core.ko
filename:       /root/new_driver/linux-5.14.0-362.18.1.el9_3/./drivers/nvme/host/nvme-core.ko
version:        1.0
license:        GPL
rhelversion:    9.3
srcversion:     A869617A5E58420845515F4
depends:        t10-pi
retpoline:      Y
name:           nvme_core
vermagic:       5.14.0 SMP preempt mod_unload modversions
parm:           multipath:turn on native support for multiple controllers per subsystem (bool)
parm:           iopolicy:Default multipath I/O policy; 'numa' (default) or 'round-robin'
parm:           admin_timeout:timeout in seconds for admin commands (uint)
parm:           io_timeout:timeout in seconds for I/O (uint)
parm:           shutdown_timeout:timeout in seconds for controller shutdown (byte)
parm:           max_retries:max number of retries a command may have (byte)
parm:           default_ps_max_latency_us:max power saving latency for new devices; use PM QOS to change per device (ulong)
parm:           force_apst:allow APST for newly enumerated devices even if quirked off (bool)
parm:           apst_primary_timeout_ms:primary APST timeout in ms (ulong)
parm:           apst_secondary_timeout_ms:secondary APST timeout in ms (ulong)
parm:           apst_primary_latency_tol_us:primary APST latency tolerance in us (ulong)
parm:           apst_secondary_latency_tol_us:secondary APST latency tolerance in us (ulong)
[root@nvmetest linux-5.14.0-362.18.1.el9_3]# modinfo /lib/modules/5.14.0-362.18.1.el9_3.x86_64/kernel/drivers/nvme/host/nvme-core.ko.xz
filename:       /lib/modules/5.14.0-362.18.1.el9_3.x86_64/kernel/drivers/nvme/host/nvme-core.ko.xz
version:        1.0
license:        GPL
rhelversion:    9.3
srcversion:     ADFE53FFFB5D30ECFF130B0
depends:        nvme-common,t10-pi
retpoline:      Y
intree:         Y
name:           nvme_core
vermagic:       5.14.0-362.18.1.el9_3.x86_64 SMP preempt mod_unload modversions
sig_id:         PKCS#7
signer:         Rocky kernel signing key
sig_key:        37:B0:46:2C:D4:62:CB:E7:6C:CA:AE:9F:2A:A2:BE:E1:36:3A:8A:AF
sig_hashalgo:   sha256
signature:      60:89:BA:1D:1C:71:38:82:DF:09:73:B4:23:3E:C8:FE:7B:E4:9F:0D:
                62:6E:28:D7:3E:5A:5E:11:CD:7B:D2:52:E2:C6:ED:5E:B6:A7:19:54:
                8A:FB:BB:E8:2D:A5:77:3F:A1:C1:7E:EB:45:74:30:E9:18:1C:3D:9A:
                53:4A:2B:B0:1E:F0:35:D3:D1:E5:B6:A5:D0:47:6C:2F:B7:C6:6F:00:
                30:0E:82:BA:FD:4F:9D:0E:3B:4A:17:A4:1B:E8:31:FC:FB:BC:C2:93:
                1C:6D:5E:94:FD:DE:65:3B:3E:0B:F4:B4:B0:82:67:87:8C:90:C9:74:
                44:BB:14:D9:F9:43:33:CC:CC:77:29:11:2C:3D:79:30:EA:B3:63:74:
                F3:02:F0:DA:68:40:BA:65:B0:E5:D8:90:FF:B0:CA:8D:D7:31:00:47:
                FE:9C:B9:17:8F:81:1D:7F:45:F6:98:E8:14:1F:73:99:00:51:18:48:
                1F:29:98:F4:37:FA:62:46:FF:1B:64:B5:1F:03:C3:5C:87:2E:13:9E:
                EE:8C:32:DE:D8:B6:3F:1D:C2:69:45:46:E2:8B:E4:BD:C2:7C:00:14:
                3F:7B:76:C8:43:4E:ED:24:BE:C8:9D:85:16:C6:9B:55:1F:BA:7B:39:
                07:57:A7:46:1A:E4:98:D5:29:C9:27:07:0B:3A:FE:6D:49:4B:DD:24:
                E0:4C:99:C1:C4:88:4D:E1:D9:78:EC:46:4F:D6:94:D6:93:B0:D4:24:
                23:08:40:35:F9:41:0D:1E:4A:78:3C:B2:A9:DB:51:C9:D0:96:F5:64:
                43:7E:FF:69:71:09:06:9D:79:B0:56:A0:49:71:69:64:3D:50:B6:0B:
                DE:A0:FA:36:D7:86:AD:B9:2A:8C:11:B5:73:F3:C5:2B:C5:2F:C2:A6:
                AB:7F:01:B1:E6:60:8F:6A:F0:A1:AE:A9:32:E1:30:DA:4D:7A:98:F5:
                89:F7:7B:4D:FF:23:4B:77:29:BA:62:1B:54:09:1F:33:57:8F:44:A3:
                FE:19:D6:43
parm:           multipath:turn on native support for multiple controllers per subsystem (bool)
parm:           iopolicy:Default multipath I/O policy; 'numa' (default) or 'round-robin'
parm:           admin_timeout:timeout in seconds for admin commands (uint)
parm:           io_timeout:timeout in seconds for I/O (uint)
parm:           shutdown_timeout:timeout in seconds for controller shutdown (byte)
parm:           max_retries:max number of retries a command may have (byte)
parm:           default_ps_max_latency_us:max power saving latency for new devices; use PM QOS to change per device (ulong)
parm:           force_apst:allow APST for newly enumerated devices even if quirked off (bool)
parm:           apst_primary_timeout_ms:primary APST timeout in ms (ulong)
parm:           apst_secondary_timeout_ms:secondary APST timeout in ms (ulong)
parm:           apst_primary_latency_tol_us:primary APST latency tolerance in us (ulong)
parm:           apst_secondary_latency_tol_us:secondary APST latency tolerance in us (ulong)
[root@nvmetest linux-5.14.0-362.18.1.el9_3]#

Using .config From Boot

I have also tried using the config from /boot with cp /boot/config-$(uname -r) .config but the results are the same.

It's not clear to me what I need to change to get that to match.

Answer 1

This didn't get to the heart of my problem, but I did find the answer to my question. I just had to update CONFIG_LOCALVERSION with the suffix that was missing in .config.