✗ Fi.CI.CHECKPATCH: warning for series starting with [01/25] RFT drm/i915/execlists: Flush memory before signaling ELSQ

[Patchwork <patchwork@emeril.freedesktop.org>]

== Series Details ==

Series: series starting with [01/25] RFT drm/i915/execlists: Flush memory before signaling ELSQ
URL   : https://patchwork.freedesktop.org/series/51967/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
3c2ac67a28b1 RFT drm/i915/execlists: Flush memory before signaling ELSQ
56584a72fd4c drm/i915: Mark pin flags as u64
205e8976f453 drm/i915/selftests: Verify we can perform resets from atomic context
b08073d933f1 drm/i915/userptr: Avoid struct_mutex recursion for mmu_invalidate_range_start
-:18: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#18: 
References: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")

-:18: ERROR:GIT_COMMIT_ID: Please use git commit description style 'commit <12+ chars of sha1> ("<title line>")' - ie: 'commit 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")'
#18: 
References: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers")

-:218: ERROR:LOCKING: recursive locking is bad, do not use this ever.
#218: FILE: drivers/gpu/drm/i915/i915_gem_userptr.c:108:
+	switch (mutex_trylock_recursive(m)) {

total: 2 errors, 1 warnings, 0 checks, 423 lines checked
f20f47b1015e drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture
2923ed57ed23 drm/i915: Always try to reset the GPU on takeover
2d9a8ac97df8 drm/i915: Cache the error string
667a844f59fc drm/i915: Report the number of closed vma held by each context in debugfs
-:61: WARNING:LONG_LINE: line over 100 characters
#61: FILE: drivers/gpu/drm/i915/i915_debugfs.c:348:
+		seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound, %llu closed)\n", \

total: 0 errors, 1 warnings, 0 checks, 201 lines checked
48e4d4241dd5 drm/i915: Remove debugfs/i915_ppgtt_info
1d46ffa2bdf5 drm/i915: Track all held rpm wakerefs
-:105: CHECK:UNCOMMENTED_DEFINITION: spinlock_t definition without comment
#105: FILE: drivers/gpu/drm/i915/i915_drv.h:1302:
+	spinlock_t debug_lock;

total: 0 errors, 0 warnings, 1 checks, 571 lines checked
d55c94ebeea6 drm/i915: Markup paired operations on wakerefs
-:748: WARNING:NEW_TYPEDEFS: do not add new typedefs
#748: FILE: drivers/gpu/drm/i915/i915_drv.h:131:
+typedef depot_stack_handle_t intel_wakeref_t;

total: 0 errors, 1 warnings, 0 checks, 2392 lines checked
e8a2eadf80a5 drm/i915: Syntatic sugar for using intel_runtime_pm
-:509: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'i915' - possible side-effects?
#509: FILE: drivers/gpu/drm/i915/intel_drv.h:2159:
+#define with_intel_runtime_pm(i915, wf) \
+	for (wf = intel_runtime_pm_get(i915); wf; \
+	     intel_runtime_pm_put(i915, wf), wf = 0)

-:509: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'wf' - possible side-effects?
#509: FILE: drivers/gpu/drm/i915/intel_drv.h:2159:
+#define with_intel_runtime_pm(i915, wf) \
+	for (wf = intel_runtime_pm_get(i915); wf; \
+	     intel_runtime_pm_put(i915, wf), wf = 0)

-:513: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'i915' - possible side-effects?
#513: FILE: drivers/gpu/drm/i915/intel_drv.h:2163:
+#define with_intel_runtime_pm_if_in_use(i915, wf) \
+	for (wf = intel_runtime_pm_get_if_in_use(i915); wf; \
+	     intel_runtime_pm_put(i915, wf), wf = 0)

-:513: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'wf' - possible side-effects?
#513: FILE: drivers/gpu/drm/i915/intel_drv.h:2163:
+#define with_intel_runtime_pm_if_in_use(i915, wf) \
+	for (wf = intel_runtime_pm_get_if_in_use(i915); wf; \
+	     intel_runtime_pm_put(i915, wf), wf = 0)

total: 0 errors, 0 warnings, 4 checks, 710 lines checked
ba7cf10bf44b drm/i915: Markup paired operations on display power domains
acacd8bf9a68 drm/i915: Track the wakeref used to initialise display power domains
-:213: WARNING:LINE_SPACING: Missing a blank line after declarations
#213: FILE: drivers/gpu/drm/i915/intel_runtime_pm.c:4185:
+	struct i915_power_domains *power_domains = &i915->power_domains;
+	intel_wakeref_t wakeref __maybe_unused =

total: 0 errors, 1 warnings, 0 checks, 326 lines checked
c246ed85f300 drm/i915: Combined gt.awake/gt.power wakerefs
ea9d6edd2f9c drm/i915/dp: Markup pps lock power well
-:57: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'dp' - possible side-effects?
#57: FILE: drivers/gpu/drm/i915/intel_dp.c:763:
+#define with_pps_lock(dp, wf) \
+	for (wf = pps_lock(dp); wf; wf = pps_unlock(dp, wf))

-:57: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'wf' - possible side-effects?
#57: FILE: drivers/gpu/drm/i915/intel_dp.c:763:
+#define with_pps_lock(dp, wf) \
+	for (wf = pps_lock(dp); wf; wf = pps_unlock(dp, wf))

total: 0 errors, 0 warnings, 2 checks, 430 lines checked
1b556cf4dc1c drm/i915: Complain if hsw_get_pipe_config acquires the same power well twice
9d91b6ea86d6 drm/i915: Mark up Ironlake ips with rpm wakerefs
-:210: CHECK:MULTIPLE_ASSIGNMENTS: multiple assignments should be avoided
#210: FILE: drivers/gpu/drm/i915/intel_pm.c:8101:
+	chipset_val = graphics_val = 0;

total: 0 errors, 0 warnings, 1 checks, 318 lines checked
874b6ac99579 drm/i915: Serialise concurrent calls to i915_gem_set_wedged()
-:48: WARNING:MEMORY_BARRIER: memory barrier without comment
#48: FILE: drivers/gpu/drm/i915/i915_gem.c:3399:
+	smp_mb__before_atomic();

total: 0 errors, 1 warnings, 0 checks, 107 lines checked
c1c98db439eb drm/i915: Differentiate between ggtt->mutex and ppgtt->mutex
d46f7fd9bd61 drm/i915: Pull all the reset functionality together into i915_reset.c
-:1124: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#1124: 
new file mode 100644

-:1129: WARNING:SPDX_LICENSE_TAG: Missing or malformed SPDX-License-Identifier tag in line 1
#1129: FILE: drivers/gpu/drm/i915/i915_reset.c:1:
+/*

-:1273: WARNING:TYPO_SPELLING: 'acknowledgement' may be misspelled - perhaps 'acknowledgment'?
#1273: FILE: drivers/gpu/drm/i915/i915_reset.c:145:
+	/* Assert reset for at least 20 usec, and wait for acknowledgement. */

-:1933: WARNING:MEMORY_BARRIER: memory barrier without comment
#1933: FILE: drivers/gpu/drm/i915/i915_reset.c:805:
+	smp_mb__before_atomic();

-:2257: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'W' - possible side-effects?
#2257: FILE: drivers/gpu/drm/i915/i915_reset.c:1129:
+#define i915_wedge_on_timeout(W, DEV, TIMEOUT)				\
+	for (__init_wedge((W), (DEV), (TIMEOUT), __func__);		\
+	     (W)->i915;							\
+	     __fini_wedge((W)))

-:2268: WARNING:STATIC_CONST_CHAR_ARRAY: char * array declaration might be better as static const
#2268: FILE: drivers/gpu/drm/i915/i915_reset.c:1140:
+	char *error_event[] = { I915_ERROR_UEVENT "=1", NULL };

-:2269: WARNING:STATIC_CONST_CHAR_ARRAY: char * array declaration might be better as static const
#2269: FILE: drivers/gpu/drm/i915/i915_reset.c:1141:
+	char *reset_event[] = { I915_RESET_UEVENT "=1", NULL };

-:2270: WARNING:STATIC_CONST_CHAR_ARRAY: char * array declaration might be better as static const
#2270: FILE: drivers/gpu/drm/i915/i915_reset.c:1142:
+	char *reset_done_event[] = { I915_ERROR_UEVENT "=0", NULL };

-:2466: WARNING:SPDX_LICENSE_TAG: Missing or malformed SPDX-License-Identifier tag in line 1
#2466: FILE: drivers/gpu/drm/i915/i915_reset.h:1:
+/*

total: 0 errors, 8 warnings, 1 checks, 2968 lines checked
c2e14acbe955 drm/i915: Make all GPU resets atomic
-:23: CHECK:USLEEP_RANGE: usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt
#23: FILE: drivers/gpu/drm/i915/i915_reset.c:147:
+	udelay(50);

-:29: CHECK:USLEEP_RANGE: usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt
#29: FILE: drivers/gpu/drm/i915/i915_reset.c:152:
+	udelay(50);

total: 0 errors, 0 warnings, 2 checks, 111 lines checked
875229697371 drm/i915/guc: Disable global reset
446dbe1cc3c0 drm/i915: Perform device reset under stop-machine
09dab363cfd3 drm/i915: Remove GPU reset dependence on struct_mutex
-:590: WARNING:MEMORY_BARRIER: memory barrier without comment
#590: FILE: drivers/gpu/drm/i915/i915_reset.c:587:
+	smp_store_mb(i915->gpu_error.restart, NULL);

total: 0 errors, 1 warnings, 0 checks, 1229 lines checked

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