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FAILED: patch "[PATCH] smb: server: Fix extension string in" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 8e7d178d06e8937454b6d2f2811fa6a15656a214 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025081211-chirping-aversion-8b66@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 8e7d178d06e8937454b6d2f2811fa6a15656a214 Mon Sep 17 00:00:00 2001 From: Thorsten Blum <thorsten.blum(a)linux.dev> Date: Wed, 6 Aug 2025 03:03:49 +0200 Subject: [PATCH] smb: server: Fix extension string in ksmbd_extract_shortname() In ksmbd_extract_shortname(), strscpy() is incorrectly called with the length of the source string (excluding the NUL terminator) rather than the size of the destination buffer. This results in "__" being copied to 'extension' rather than "___" (two underscores instead of three). Use the destination buffer size instead to ensure that the string "___" (three underscores) is copied correctly. Cc: stable(a)vger.kernel.org Fixes: e2f34481b24d ("cifsd: add server-side procedures for SMB3") Signed-off-by: Thorsten Blum <thorsten.blum(a)linux.dev> Acked-by: Namjae Jeon <linkinjeon(a)kernel.org> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/server/smb_common.c b/fs/smb/server/smb_common.c index 425c756bcfb8..b23203a1c286 100644 --- a/fs/smb/server/smb_common.c +++ b/fs/smb/server/smb_common.c @@ -515,7 +515,7 @@ int ksmbd_extract_shortname(struct ksmbd_conn *conn, const char *longname, p = strrchr(longname, '.'); if (p == longname) { /*name starts with a dot*/ - strscpy(extension, "___", strlen("___")); + strscpy(extension, "___", sizeof(extension)); } else { if (p) { p++;

3 months, 3 weeks

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Re: Patch "pwm: rockchip: Round period/duty down on apply, up on get" has been added to the 6.16-stable tree

by Uwe Kleine-König

Hello Sasha, On Fri, Aug 08, 2025 at 06:30:33PM -0400, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > pwm: rockchip: Round period/duty down on apply, up on get > > to the 6.16-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > pwm-rockchip-round-period-duty-down-on-apply-up-on-g.patch > and it can be found in the queue-6.16 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > > > > commit 51144efa3159cd95ab37e786c982822a060d7d1a > Author: Nicolas Frattaroli <nicolas.frattaroli(a)collabora.com> > Date: Mon Jun 16 17:14:17 2025 +0200 > > pwm: rockchip: Round period/duty down on apply, up on get > > [ Upstream commit 0b4d1abe5ca568c5b7f667345ec2b5ad0fb2e54b ] > > With CONFIG_PWM_DEBUG=y, the rockchip PWM driver produces warnings like > this: > > rockchip-pwm fd8b0010.pwm: .apply is supposed to round down > duty_cycle (requested: 23529/50000, applied: 23542/50000) > > This is because the driver chooses ROUND_CLOSEST for purported > idempotency reasons. However, it's possible to keep idempotency while > always rounding down in .apply(). > > Do this by making .get_state() always round up, and making .apply() > always round down. This is done with u64 maths, and setting both period > and duty to U32_MAX (the biggest the hardware can support) if they would > exceed their 32 bits confines. > > Fixes: 12f9ce4a5198 ("pwm: rockchip: Fix period and duty cycle approximation") > Fixes: 1ebb74cf3537 ("pwm: rockchip: Add support for hardware readout") > Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli(a)collabora.com> > Link: https://lore.kernel.org/r/20250616-rockchip-pwm-rounding-fix-v2-1-a9c65acad… > Signed-off-by: Uwe Kleine-König <ukleinek(a)kernel.org> > Signed-off-by: Sasha Levin <sashal(a)kernel.org> while the new code makes the driver match the PWM rules now, I'd be conservative and not backport that patch because while I consider it a (very minor) fix that's a change in behaviour and maybe people depend on that old behaviour. So let's not break our user's workflows and reserve that for a major release. Please drop this patch from your queue. Best regards Uwe

3 months, 3 weeks

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Re: [PATCH v3] clocksource: clps711x: Fix resource leaks in error paths

by Daniel Lezcano

Hi, this patch does not seem to have reached lkml@, making impossible to extract via git b4 neither adding the Link tag. On 05/08/2025 05:56, Zhen Ni wrote: > The current implementation of clps711x_timer_init() has multiple error > paths that directly return without releasing the base I/O memory mapped > via of_iomap(). Fix of_iomap leaks in error paths. > > Fixes: 04410efbb6bc ("clocksource/drivers/clps711x: Convert init function to return error") > Fixes: 2a6a8e2d9004 ("clocksource/drivers/clps711x: Remove board support") > Cc: stable(a)vger.kernel.org > Signed-off-by: Zhen Ni <zhen.ni(a)easystack.cn> > --- > changes in v3: > - Change "err" to "error" in the commit message. > changes in v2: > - Add tags of 'Fixes' and 'Cc' > - Reduce detailed enumeration of err paths > - Omit a pointer check before iounmap() > - Change goto target from out to unmap_io > --- > drivers/clocksource/clps711x-timer.c | 23 ++++++++++++++++------- > 1 file changed, 16 insertions(+), 7 deletions(-) > > diff --git a/drivers/clocksource/clps711x-timer.c b/drivers/clocksource/clps711x-timer.c > index e95fdc49c226..bbceb0289d45 100644 > --- a/drivers/clocksource/clps711x-timer.c > +++ b/drivers/clocksource/clps711x-timer.c > @@ -78,24 +78,33 @@ static int __init clps711x_timer_init(struct device_node *np) > unsigned int irq = irq_of_parse_and_map(np, 0); > struct clk *clock = of_clk_get(np, 0); > void __iomem *base = of_iomap(np, 0); > + int ret = 0; > > if (!base) > return -ENOMEM; > - if (!irq) > - return -EINVAL; > - if (IS_ERR(clock)) > - return PTR_ERR(clock); > + if (!irq) { > + ret = -EINVAL; > + goto unmap_io; > + } > + if (IS_ERR(clock)) { > + ret = PTR_ERR(clock); > + goto unmap_io; > + } > > switch (of_alias_get_id(np, "timer")) { > case CLPS711X_CLKSRC_CLOCKSOURCE: > clps711x_clksrc_init(clock, base); > break; > case CLPS711X_CLKSRC_CLOCKEVENT: > - return _clps711x_clkevt_init(clock, base, irq); > + ret = _clps711x_clkevt_init(clock, base, irq); > + break; > default: > - return -EINVAL; > + ret = -EINVAL; > + break; > } > > - return 0; > +unmap_io: > + iounmap(base); > + return ret; > } > TIMER_OF_DECLARE(clps711x, "cirrus,ep7209-timer", clps711x_timer_init); -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog

3 months, 3 weeks

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[BUG] arm64: Sleeping function called from invalid context in do_debug_exception on PREEMPT_RT

by Yunseong Kim

Hi, On a PREEMPT_RT kernel based on v6.16-rc1, I hit the following splat: | BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 | in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 20466, name: syz.0.1689 | preempt_count: 1, expected: 0 | RCU nest depth: 0, expected: 0 | Preemption disabled at: | [<ffff800080241600>] debug_exception_enter arch/arm64/mm/fault.c:978 [inline] | [<ffff800080241600>] do_debug_exception+0x68/0x2fc arch/arm64/mm/fault.c:997 | CPU: 0 UID: 0 PID: 20466 Comm: syz.0.1689 Not tainted 6.16.0-rc1-rt1-dirty #12 PREEMPT_RT | Hardware name: QEMU KVM Virtual Machine, BIOS 2025.02-8 05/13/2025 | Call trace: | show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) | __dump_stack+0x30/0x40 lib/dump_stack.c:94 | dump_stack_lvl+0x148/0x1d8 lib/dump_stack.c:120 | dump_stack+0x1c/0x3c lib/dump_stack.c:129 | __might_resched+0x2e4/0x52c kernel/sched/core.c:8800 | __rt_spin_lock kernel/locking/spinlock_rt.c:48 [inline] | rt_spin_lock+0xa8/0x1bc kernel/locking/spinlock_rt.c:57 | spin_lock include/linux/spinlock_rt.h:44 [inline] | force_sig_info_to_task+0x6c/0x4a8 kernel/signal.c:1302 | force_sig_fault_to_task kernel/signal.c:1699 [inline] | force_sig_fault+0xc4/0x110 kernel/signal.c:1704 | arm64_force_sig_fault+0x6c/0x80 arch/arm64/kernel/traps.c:265 | send_user_sigtrap arch/arm64/kernel/debug-monitors.c:237 [inline] | single_step_handler+0x1f4/0x36c arch/arm64/kernel/debug-monitors.c:257 | do_debug_exception+0x154/0x2fc arch/arm64/mm/fault.c:1002 | el0_dbg+0x44/0x120 arch/arm64/kernel/entry-common.c:756 | el0t_64_sync_handler+0x3c/0x108 arch/arm64/kernel/entry-common.c:832 | el0t_64_sync+0x1ac/0x1b0 arch/arm64/kernel/entry.S:600 It seems that commit eaff68b32861 ("arm64: entry: Add entry and exit functions for debug exception") in 6.17-rc1, also present as 6fb44438a5e1 in mainline, removed code that previously avoided sleeping context issues when handling debug exceptions: Link: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/arch… This appears to be triggered when force_sig_fault() is called from debug exception context, which is not sleepable under PREEMPT_RT. I understand that this path is primarily for debugging, but I would like to discuss whether the patch needs some adjustment for PREEMPT_RT. I also found that the issue can be reproduced depending on the changes introduced by the following commit: Link: https://github.com/torvalds/linux/commit/d8bb6718c4d arm64: Make debug exception handlers visible from RCU Make debug exceptions visible from RCU so that synchronize_rcu() correctly tracks the debug exception handler. This also introduces sanity checks for user-mode exceptions as same as x86's ist_enter()/ist_exit(). The debug exception can interrupt in idle task. For example, it warns if we put a kprobe on a function called from idle task as below. The warning message showed that the rcu_read_lock() caused this problem. But actually, this means the RCU lost the context which was already in NMI/IRQ. /sys/kernel/debug/tracing # echo p default_idle_call >> kprobe_events /sys/kernel/debug/tracing # echo 1 > events/kprobes/enable ... For reference: - v5.2.10: https://elixir.bootlin.com/linux/v5.2.10/source/arch/arm64/mm/fault.c#L810 - v5.3-rc3: https://elixir.bootlin.com/linux/v5.3-rc3/source/arch/arm64/mm/fault.c#L787 Do we need to restore some form of non-sleeping signal delivery in debug exception context for PREEMPT_RT, or is there another preferred fix? Thanks, Yunseong

3 months, 3 weeks

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[PATCH v2] memory: samsung: exynos-srom: Fix of_iomap leak in exynos_srom_probe

by Zhen Ni

The of_platform_populate() call at the end of the function has a possible failure path, causing a resource leak. Replace of_iomap() with devm_platform_ioremap_resource() to ensure automatic cleanup of srom->reg_base. This issue was detected by smatch static analysis: drivers/memory/samsung/exynos-srom.c:155 exynos_srom_probe()warn: 'srom->reg_base' from of_iomap() not released on lines: 155. Fixes: 8ac2266d8831 ("memory: samsung: exynos-srom: Add support for bank configuration") Cc: stable(a)vger.kernel.org Signed-off-by: Zhen Ni <zhen.ni(a)easystack.cn> --- chanegs in v2: - Update commit msg --- drivers/memory/samsung/exynos-srom.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/memory/samsung/exynos-srom.c b/drivers/memory/samsung/exynos-srom.c index e73dd330af47..d913fb901973 100644 --- a/drivers/memory/samsung/exynos-srom.c +++ b/drivers/memory/samsung/exynos-srom.c @@ -121,20 +121,18 @@ static int exynos_srom_probe(struct platform_device *pdev) return -ENOMEM; srom->dev = dev; - srom->reg_base = of_iomap(np, 0); - if (!srom->reg_base) { + srom->reg_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(srom->reg_base)) { dev_err(&pdev->dev, "iomap of exynos srom controller failed\n"); - return -ENOMEM; + return PTR_ERR(srom->reg_base); } platform_set_drvdata(pdev, srom); srom->reg_offset = exynos_srom_alloc_reg_dump(exynos_srom_offsets, ARRAY_SIZE(exynos_srom_offsets)); - if (!srom->reg_offset) { - iounmap(srom->reg_base); + if (!srom->reg_offset) return -ENOMEM; - } for_each_child_of_node(np, child) { if (exynos_srom_configure_bank(srom, child)) { -- 2.20.1

3 months, 3 weeks

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[PATCH RESEND] HID: asus: fix UAF via HID_CLAIMED_INPUT validation

by Qasim Ijaz

After hid_hw_start() is called hidinput_connect() will eventually be called to set up the device with the input layer since the HID_CONNECT_DEFAULT connect mask is used. During hidinput_connect() all input and output reports are processed and corresponding hid_inputs are allocated and configured via hidinput_configure_usages(). This process involves slot tagging report fields and configuring usages by setting relevant bits in the capability bitmaps. However it is possible that the capability bitmaps are not set at all leading to the subsequent hidinput_has_been_populated() check to fail leading to the freeing of the hid_input and the underlying input device. This becomes problematic because a malicious HID device like a ASUS ROG N-Key keyboard can trigger the above scenario via a specially crafted descriptor which then leads to a user-after-free when the name of the freed input device is written to later on after hid_hw_start(). Below, report 93 intentionally utilises the HID_UP_UNDEFINED Usage Page which is skipped during usage configuration, leading to the frees. 0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x05, // Usage (Touch Pad) 0xA1, 0x01, // Collection (Application) 0x85, 0x0D, // Report ID (13) 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined 0xFF00) 0x09, 0xC5, // Usage (0xC5) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x04, // Report Count (4) 0xB1, 0x02, // Feature (Data,Var,Abs) 0x85, 0x5D, // Report ID (93) 0x06, 0x00, 0x00, // Usage Page (Undefined) 0x09, 0x01, // Usage (0x01) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x1B, // Report Count (27) 0x81, 0x02, // Input (Data,Var,Abs) 0xC0, // End Collection Below is the KASAN splat after triggering the UAF: [ 21.672709] ================================================================== [ 21.673700] BUG: KASAN: slab-use-after-free in asus_probe+0xeeb/0xf80 [ 21.673700] Write of size 8 at addr ffff88810a0ac000 by task kworker/1:2/54 [ 21.673700] [ 21.673700] CPU: 1 UID: 0 PID: 54 Comm: kworker/1:2 Not tainted 6.16.0-rc4-g9773391cf4dd-dirty #36 PREEMPT(voluntary) [ 21.673700] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 21.673700] Call Trace: [ 21.673700] <TASK> [ 21.673700] dump_stack_lvl+0x5f/0x80 [ 21.673700] print_report+0xd1/0x660 [ 21.673700] kasan_report+0xe5/0x120 [ 21.673700] __asan_report_store8_noabort+0x1b/0x30 [ 21.673700] asus_probe+0xeeb/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220 [...] [ 21.673700] [ 21.673700] Allocated by task 54: [ 21.673700] kasan_save_stack+0x3d/0x60 [ 21.673700] kasan_save_track+0x18/0x40 [ 21.673700] kasan_save_alloc_info+0x3b/0x50 [ 21.673700] __kasan_kmalloc+0x9c/0xa0 [ 21.673700] __kmalloc_cache_noprof+0x139/0x340 [ 21.673700] input_allocate_device+0x44/0x370 [ 21.673700] hidinput_connect+0xcb6/0x2630 [ 21.673700] hid_connect+0xf74/0x1d60 [ 21.673700] hid_hw_start+0x8c/0x110 [ 21.673700] asus_probe+0x5a3/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220 [...] [ 21.673700] [ 21.673700] Freed by task 54: [ 21.673700] kasan_save_stack+0x3d/0x60 [ 21.673700] kasan_save_track+0x18/0x40 [ 21.673700] kasan_save_free_info+0x3f/0x60 [ 21.673700] __kasan_slab_free+0x3c/0x50 [ 21.673700] kfree+0xcf/0x350 [ 21.673700] input_dev_release+0xab/0xd0 [ 21.673700] device_release+0x9f/0x220 [ 21.673700] kobject_put+0x12b/0x220 [ 21.673700] put_device+0x12/0x20 [ 21.673700] input_free_device+0x4c/0xb0 [ 21.673700] hidinput_connect+0x1862/0x2630 [ 21.673700] hid_connect+0xf74/0x1d60 [ 21.673700] hid_hw_start+0x8c/0x110 [ 21.673700] asus_probe+0x5a3/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220 [...] Fixes: 9ce12d8be12c ("HID: asus: Add i2c touchpad support") Cc: stable(a)vger.kernel.org Signed-off-by: Qasim Ijaz <qasdev00(a)gmail.com> --- drivers/hid/hid-asus.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index 4b45e31f0bab..9bce9c84ab20 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -1212,8 +1212,14 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) hid_err(hdev, "Asus hw start failed: %d\n", ret); return ret; } - - if (!drvdata->input) { + + /* + * Check that input registration succeeded. Checking that + * HID_CLAIMED_INPUT is set prevents a UAF when all input devices + * were freed during registration due to no usages being mapped, + * leaving drvdata->input pointing to freed memory. + */ + if (!drvdata->input || !(hdev->claimed & HID_CLAIMED_INPUT)) { hid_err(hdev, "Asus input not registered\n"); ret = -ENOMEM; goto err_stop_hw; -- 2.39.5

3 months, 3 weeks

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[PATCH v2] dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted

by Shanker Donthineni

When CONFIG_DMA_DIRECT_REMAP is enabled, atomic pool pages are remapped via dma_common_contiguous_remap() using the supplied pgprot. Currently, the mapping uses pgprot_dmacoherent(PAGE_KERNEL), which leaves the memory encrypted on systems with memory encryption enabled (e.g., ARM CCA Realms). This can cause the DMA layer to fail or crash when accessing the memory, as the underlying physical pages are not configured as expected. Fix this by requesting a decrypted mapping in the vmap() call: pgprot_decrypted(pgprot_dmacoherent(PAGE_KERNEL)) This ensures that atomic pool memory is consistently mapped unencrypted. Cc: stable(a)vger.kernel.org Signed-off-by: Shanker Donthineni <sdonthineni(a)nvidia.com> --- kernel/dma/pool.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c index 7b04f7575796b..ee45dee33d491 100644 --- a/kernel/dma/pool.c +++ b/kernel/dma/pool.c @@ -102,8 +102,8 @@ static int atomic_pool_expand(struct gen_pool *pool, size_t pool_size, #ifdef CONFIG_DMA_DIRECT_REMAP addr = dma_common_contiguous_remap(page, pool_size, - pgprot_dmacoherent(PAGE_KERNEL), - __builtin_return_address(0)); + pgprot_decrypted(pgprot_dmacoherent(PAGE_KERNEL)), + __builtin_return_address(0)); if (!addr) goto free_page; #else -- 2.25.1

3 months, 3 weeks

3
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International Broadcast Conference 2025 Attendee's List

by Jack Reacher

Hi, We are offering the visitors contact list International Broadcast Conference (IBC) 2025. We currently have 50,656 verified visitor contacts. Each contact contains: Contact name, Job Title, Business Name, Physical Address, Phone Numbers, Official Email address and many more… Rest assured, our contacts are 100% opt-in and GDPR compliant, ensuring the utmost integrity in your outreach. Let me know if you are interested so that I can share the pricing for the same. Kind Regards, Jack Reacher Sr. Marketing Manager If you do not wish to receive this newsletter reply as “Unfollow”

3 months, 3 weeks

1
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[PATCH] arm64: dts: qcom: sm8450: Fix address for usb controller node

by Krishna Kurapati

Correct the address in usb controller node to fix the following warning: Warning (simple_bus_reg): /soc@0/usb@a6f8800: simple-bus unit address format error, expected "a600000" Fixes: c015f76c23ac ("arm64: dts: qcom: sm8450: Fix address for usb controller node") Cc: stable(a)vger.kernel.org Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202508121834.953Mvah2-lkp@intel.com/ Signed-off-by: Krishna Kurapati <krishna.kurapati(a)oss.qualcomm.com> --- arch/arm64/boot/dts/qcom/sm8450.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi index 2baef6869ed7..38c91c3ec787 100644 --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi @@ -5417,7 +5417,7 @@ opp-202000000 { }; }; - usb_1: usb@a6f8800 { + usb_1: usb@a600000 { compatible = "qcom,sm8450-dwc3", "qcom,snps-dwc3"; reg = <0 0x0a600000 0 0xfc100>; status = "disabled"; -- 2.34.1

3 months, 3 weeks

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Re: [PATCH 00/12] ice: split ice_virtchnl.c git-blame friendly way

by Jakub Kicinski

On Tue, 12 Aug 2025 15:28:58 +0200 Przemek Kitszel wrote: > Summary: > Split ice_virtchnl.c into two more files (+headers), in a way > that git-blame works better. > Then move virtchnl files into a new subdir. > No logic changes. > > I have developed (or discovered ;)) how to split a file in a way that > both old and new are nice in terms of git-blame > There were no much disscussion on [RFC], so I would like to propose > to go forward with this approach. > > There is more commits needed to have it nice, so it forms a git-log vs > git-blame tradeoff, but (after the brief moment that this is on the top) > we spend orders of magnitude more time looking at the blame output (and > commit messages linked from that) - so I find it much better to see > actual logic changes instead of "move xx to yy" stuff (typical for > "squashed/single-commit splits"). > > Cherry-picks/rebases work the same with this method as with simple > "squashed/single-commit" approach (literally all commits squashed into > one (to have better git-log, but shitty git-blame output). > > Rationale for the split itself is, as usual, "file is big and we want to > extend it". > > This series is available on my github (just rebased from any > earlier mentions): > https://github.com/pkitszel/linux/tree/virtchnl-split-Aug12 > (the simple git-email view flattens this series, removing two > merges from the view). > > > [RFC]: > https://lore.kernel.org/netdev/5b94d14e-a0e7-47bd-82fc-c85171cbf26e@intel.c… > > (I would really look at my fork via your preferred git interaction tool > instead of looking at the patches below). UI tools aside I wish you didn't cut off the diffstat from the cover letter :/ It'd make it much easier to understand what you're splitting. Greg, Sasha, I suspect stable will suffer the most from any file split / movement. Do you have any recommendation on what should be allowed?

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