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Marc Zyngier 3c0f3c605b NET: smsc95xx: don't use stack for async writes to the device ... The set_multicast operation performs asynchronous writes to the device, with some addresses pointing to the stack. Bad things may happen, and this is trapped CONFIG_DMA_API_DEBUG: [ 5.237762] WARNING: at /build/buildd/linux-linaro-omap-2.6.38/lib/dma-debug.c:867 check_for_stack+0xd4/0x100() [ 5.237792] ehci-omap ehci-omap.0: DMA-API: device driver maps memory fromstack [addr=d9c77dec] [ 5.237792] Modules linked in: smsc95xx(+) usbnet twl6030_usb twl4030_pwrbutton leds_gpio omap_wdt omap2_mcspi [ 5.237854] [<c006d618>] (unwind_backtrace+0x0/0xf8) from [<c00a6a14>] (warn_slowpath_common+0x54/0x64) [ 5.237884] [<c00a6a14>] (warn_slowpath_common+0x54/0x64) from [<c00a6ab8>] (warn_slowpath_fmt+0x30/0x40) [ 5.237915] [<c00a6ab8>] (warn_slowpath_fmt+0x30/0x40) from [<c034e9d8>] (check_for_stack+0xd4/0x100) [ 5.237915] [<c034e9d8>] (check_for_stack+0xd4/0x100) from [<c034fea8>] (debug_dma_map_page+0xb4/0xdc) [ 5.237976] [<c034fea8>] (debug_dma_map_page+0xb4/0xdc) from [<c04242f0>] (map_urb_for_dma+0x26c/0x304) [ 5.237976] [<c04242f0>] (map_urb_for_dma+0x26c/0x304) from [<c0424594>] (usb_hcd_submit_urb+0x78/0x19c) [ 5.238037] [<c0424594>] (usb_hcd_submit_urb+0x78/0x19c) from [<bf049c5c>] (smsc95xx_write_reg_async+0xb4/0x130 [smsc95xx]) [ 5.238067] [<bf049c5c>] (smsc95xx_write_reg_async+0xb4/0x130 [smsc95xx]) from [<bf049dd4>] (smsc95xx_set_multicast+0xfc/0x148 [smsc95xx]) [ 5.238098] [<bf049dd4>] (smsc95xx_set_multicast+0xfc/0x148 [smsc95xx]) from [<bf04a118>] (smsc95xx_reset+0x2f8/0x68c [smsc95xx]) [ 5.238128] [<bf04a118>] (smsc95xx_reset+0x2f8/0x68c [smsc95xx]) from [<bf04a8cc>] (smsc95xx_bind+0xcc/0x188 [smsc95xx]) [ 5.238159] [<bf04a8cc>] (smsc95xx_bind+0xcc/0x188 [smsc95xx]) from [<bf03ef1c>] (usbnet_probe+0x204/0x4c4 [usbnet]) [ 5.238220] [<bf03ef1c>] (usbnet_probe+0x204/0x4c4 [usbnet]) from [<c0429078>] (usb_probe_interface+0xe4/0x1c4) [ 5.238250] [<c0429078>] (usb_probe_interface+0xe4/0x1c4) from [<c03a8770>] (really_probe+0x64/0x160) [ 5.238250] [<c03a8770>] (really_probe+0x64/0x160) from [<c03a8a30>] (driver_probe_device+0x48/0x60) [ 5.238281] [<c03a8a30>] (driver_probe_device+0x48/0x60) from [<c03a8ad4>] (__driver_attach+0x8c/0x90) [ 5.238311] [<c03a8ad4>] (__driver_attach+0x8c/0x90) from [<c03a7b24>] (bus_for_each_dev+0x50/0x7c) [ 5.238311] [<c03a7b24>] (bus_for_each_dev+0x50/0x7c) from [<c03a82ec>] (bus_add_driver+0x190/0x250) [ 5.238311] [<c03a82ec>] (bus_add_driver+0x190/0x250) from [<c03a8cf8>] (driver_register+0x78/0x13c) [ 5.238433] [<c03a8cf8>] (driver_register+0x78/0x13c) from [<c0428040>] (usb_register_driver+0x78/0x13c) [ 5.238464] [<c0428040>] (usb_register_driver+0x78/0x13c) from [<c005b680>] (do_one_initcall+0x34/0x188) [ 5.238494] [<c005b680>] (do_one_initcall+0x34/0x188) from [<c00e11f0>] (sys_init_module+0xb0/0x1c0) [ 5.238525] [<c00e11f0>] (sys_init_module+0xb0/0x1c0) from [<c0065c40>] (ret_fast_syscall+0x0/0x30) Move the two offenders to the private structure which is kmalloc-ed, and thus safe. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>		14 years ago
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Kconfig	…
Makefile	…
asix.c	asix: add USB ID for Logitec LAN-GTJ U2A	14 years ago
catc.c	…
cdc-phonet.c	NET: cdc-phonet, handle empty phonet header	14 years ago
cdc_eem.c	…
cdc_ether.c	USB: cdc_ether: remove unneeded check	14 years ago
cdc_ncm.c	USB CDC NCM errata updates for cdc_ncm host driver	14 years ago
cdc_subset.c	…
cx82310_eth.c	…
dm9601.c	Added support for usb ethernet (0x0fe6, 0x9700)	14 years ago
gl620a.c	…
hso.c	Merge 2.6.38-rc6 into tty-next	14 years ago
int51x1.c	…
ipheth.c	…
kaweth.c	USB NET KL5KUSB101: Fix mem leak in error path of kaweth_download_firmware()	14 years ago
mcs7830.c	USB: mcs7830: return negative if auto negotiate fails	14 years ago
net1080.c	…
pegasus.c	…
pegasus.h	…
plusb.c	…
rndis_host.c	…
rtl8150.c	…
sierra_net.c	…
smsc75xx.c	…
smsc75xx.h	…
smsc95xx.c	NET: smsc95xx: don't use stack for async writes to the device	14 years ago
smsc95xx.h	…
usbnet.c	USB Network driver infrastructure: Fix leak when usb_autopm_get_interface() returns less than zero in kevent().	14 years ago
zaurus.c	…