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-rw-r--r--lib/Kconfig.debug1
-rw-r--r--lib/devres.c25
-rw-r--r--lib/iomap.c2
-rw-r--r--lib/iommu-helper.c10
-rw-r--r--lib/kobject.c11
-rw-r--r--lib/kobject_uevent.c2
-rw-r--r--lib/lzo/lzo1x_decompress.c2
-rw-r--r--lib/random32.c13
-rw-r--r--lib/swiotlb.c30
-rw-r--r--lib/vsprintf.c2
10 files changed, 66 insertions, 32 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ab408aa9b6d..0796c1a090c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -527,6 +527,7 @@ config LKDTM
tristate "Linux Kernel Dump Test Tool Module"
depends on DEBUG_KERNEL
depends on KPROBES
+ depends on BLOCK
default n
help
This module enables testing of the different dumping mechanisms by
diff --git a/lib/devres.c b/lib/devres.c
index b1d336ce7f3..edc27a5d1b7 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -298,6 +298,31 @@ int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name)
EXPORT_SYMBOL(pcim_iomap_regions);
/**
+ * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
+ * @pdev: PCI device to map IO resources for
+ * @mask: Mask of BARs to iomap
+ * @name: Name used when requesting regions
+ *
+ * Request all PCI BARs and iomap regions specified by @mask.
+ */
+int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask,
+ const char *name)
+{
+ int request_mask = ((1 << 6) - 1) & ~mask;
+ int rc;
+
+ rc = pci_request_selected_regions(pdev, request_mask, name);
+ if (rc)
+ return rc;
+
+ rc = pcim_iomap_regions(pdev, mask, name);
+ if (rc)
+ pci_release_selected_regions(pdev, request_mask);
+ return rc;
+}
+EXPORT_SYMBOL(pcim_iomap_regions_request_all);
+
+/**
* pcim_iounmap_regions - Unmap and release PCI BARs
* @pdev: PCI device to map IO resources for
* @mask: Mask of BARs to unmap and release
diff --git a/lib/iomap.c b/lib/iomap.c
index db004a9ff50..dd6ca48fe6b 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -256,7 +256,7 @@ EXPORT_SYMBOL(ioport_unmap);
* */
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
{
- unsigned long start = pci_resource_start(dev, bar);
+ resource_size_t start = pci_resource_start(dev, bar);
unsigned long len = pci_resource_len(dev, bar);
unsigned long flags = pci_resource_flags(dev, bar);
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index 495575a59ca..a3b8d4c3f77 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -40,10 +40,12 @@ static inline void set_bit_area(unsigned long *map, unsigned long i,
}
}
-static inline int is_span_boundary(unsigned int index, unsigned int nr,
- unsigned long shift,
- unsigned long boundary_size)
+int iommu_is_span_boundary(unsigned int index, unsigned int nr,
+ unsigned long shift,
+ unsigned long boundary_size)
{
+ BUG_ON(!is_power_of_2(boundary_size));
+
shift = (shift + index) & (boundary_size - 1);
return shift + nr > boundary_size;
}
@@ -57,7 +59,7 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
again:
index = find_next_zero_area(map, size, start, nr, align_mask);
if (index != -1) {
- if (is_span_boundary(index, nr, shift, boundary_size)) {
+ if (iommu_is_span_boundary(index, nr, shift, boundary_size)) {
/* we could do more effectively */
start = index + 1;
goto again;
diff --git a/lib/kobject.c b/lib/kobject.c
index d784daeb857..0d03252f87a 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -153,6 +153,10 @@ static void kobject_init_internal(struct kobject *kobj)
return;
kref_init(&kobj->kref);
INIT_LIST_HEAD(&kobj->entry);
+ kobj->state_in_sysfs = 0;
+ kobj->state_add_uevent_sent = 0;
+ kobj->state_remove_uevent_sent = 0;
+ kobj->state_initialized = 1;
}
@@ -289,13 +293,8 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
dump_stack();
}
- kref_init(&kobj->kref);
- INIT_LIST_HEAD(&kobj->entry);
+ kobject_init_internal(kobj);
kobj->ktype = ktype;
- kobj->state_in_sysfs = 0;
- kobj->state_add_uevent_sent = 0;
- kobj->state_remove_uevent_sent = 0;
- kobj->state_initialized = 1;
return;
error:
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 5a402e2982a..5b6d7f6956b 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -55,7 +55,7 @@ int kobject_action_type(const char *buf, size_t count,
enum kobject_action action;
int ret = -EINVAL;
- if (count && buf[count-1] == '\n')
+ if (count && (buf[count-1] == '\n' || buf[count-1] == '\0'))
count--;
if (!count)
diff --git a/lib/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c
index 9dc7056e552..77f0f9b775a 100644
--- a/lib/lzo/lzo1x_decompress.c
+++ b/lib/lzo/lzo1x_decompress.c
@@ -158,7 +158,7 @@ match:
t += 7 + *ip++;
}
m_pos -= le16_to_cpu(get_unaligned(
- (const unsigned short *)ip) >> 2);
+ (const unsigned short *)ip)) >> 2;
ip += 2;
if (m_pos == op)
goto eof_found;
diff --git a/lib/random32.c b/lib/random32.c
index ec7f81d3fb1..ca87d86992b 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -97,13 +97,18 @@ EXPORT_SYMBOL(random32);
* @seed: seed value
*
* Add some additional seeding to the random32() pool.
- * Note: this pool is per cpu so it only affects current CPU.
*/
void srandom32(u32 entropy)
{
- struct rnd_state *state = &get_cpu_var(net_rand_state);
- __set_random32(state, state->s1 ^ entropy);
- put_cpu_var(state);
+ int i;
+ /*
+ * No locking on the CPUs, but then somewhat random results are, well,
+ * expected.
+ */
+ for_each_possible_cpu (i) {
+ struct rnd_state *state = &per_cpu(net_rand_state, i);
+ __set_random32(state, state->s1 ^ entropy);
+ }
}
EXPORT_SYMBOL(srandom32);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 4bb5a11e18a..025922807e6 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -310,7 +310,9 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
start_dma_addr = virt_to_bus(io_tlb_start) & mask;
offset_slots = ALIGN(start_dma_addr, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
- max_slots = ALIGN(mask + 1, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
+ max_slots = mask + 1
+ ? ALIGN(mask + 1, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT
+ : 1UL << (BITS_PER_LONG - IO_TLB_SHIFT);
/*
* For mappings greater than a page, we limit the stride (and
@@ -333,16 +335,18 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
index = ALIGN(io_tlb_index, stride);
if (index >= io_tlb_nslabs)
index = 0;
-
- while (is_span_boundary(index, nslots, offset_slots,
- max_slots)) {
- index += stride;
- if (index >= io_tlb_nslabs)
- index = 0;
- }
wrap = index;
do {
+ while (is_span_boundary(index, nslots, offset_slots,
+ max_slots)) {
+ index += stride;
+ if (index >= io_tlb_nslabs)
+ index = 0;
+ if (index == wrap)
+ goto not_found;
+ }
+
/*
* If we find a slot that indicates we have 'nslots'
* number of contiguous buffers, we allocate the
@@ -367,14 +371,12 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
goto found;
}
- do {
- index += stride;
- if (index >= io_tlb_nslabs)
- index = 0;
- } while (is_span_boundary(index, nslots, offset_slots,
- max_slots));
+ index += stride;
+ if (index >= io_tlb_nslabs)
+ index = 0;
} while (index != wrap);
+ not_found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
return NULL;
}
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index fd987b17bda..6021757a449 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -234,7 +234,7 @@ int strict_strto##type(const char *cp, unsigned int base, valtype *res) \
int ret; \
if (*cp == '-') { \
ret = strict_strtou##type(cp+1, base, res); \
- if (ret != 0) \
+ if (!ret) \
*res = -(*res); \
} else \
ret = strict_strtou##type(cp, base, res); \
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-27 19:15:46 +0000