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authorOlof Johansson <olof@lixom.net>2014-09-23 22:11:05 -0700
committerOlof Johansson <olof@lixom.net>2014-09-23 22:11:25 -0700
commit8adc36bcd374dc7381d15e654215dd1f548ccbef (patch)
treeafc86512891f75b04efa0273694a977a77529a86 /drivers/md/dm-crypt.c
parent96bdd9aeb2cbc5eaae586f4d43badd072611fcb1 (diff)
parentd27704d1ec2f9ba06247b402c58a6f2febecef78 (diff)
downloadlinux-8adc36bcd374dc7381d15e654215dd1f548ccbef.tar.bz2
Merge tag 'dt-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dts changes for v3.18 merge window" from Tony Lindgren: Changes for .dts files for omaps for v3.18 merge window: - Updates for gta04 to add gta04a3 model - Add support for Tehnexion TAO3530 boards - Regulator names for beaglebone - Pinctrl related updates for omap5, dra7 and am437 - Model name fix for sbc-t54 - Enable mailbox for various omaps * tag 'dt-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (291 commits) ARM: dts: OMAP2+: Add sub mailboxes device node information ARM: dts: dra7-evm: Mark uart1 rxd as wakeup capable ARM: dts: OMAP5 / DRA7: switch over to interrupts-extended property for UART ARM: dts: AM437x: switch to compatible pinctrl ARM: dts: DRA7: switch to compatible pinctrl ARM: dts: OMAP5: switch to compatible pinctrl ARM: dts: am335x-boneblack: Add names for remaining regulators ARM: dts: sbc-t54: fix model property ARM: dts: omap5.dtsi: add DSS RFBI node ARM: dts: omap3: Add HEAD acoustics omap3-ha.dts and omap3-ha-lcd.dts (TAO3530 based) ARM: dts: omap3: Add Technexion Thunder support (TAO3530 SOM based) ARM: dts: omap3: Add Technexion TAO3530 SOM omap3-tao3530.dtsi ARM: OMAP2+: tao3530: Add pdata-quirk for the mmc2 internal clock ARM: OMAP2+: board-generic: add support for AM57xx family ARM: dts: dra72-evm: Add tps65917 PMIC node ARM: dts: dra72-evm: Enable I2C1 node Linux 3.17-rc3 unicore32: Fix build error vexpress/spc: fix a build warning on array bounds spi: sh-msiof: Fix transmit-only DMA transfers ... Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/md/dm-crypt.c')
-rw-r--r--drivers/md/dm-crypt.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 2785007e0e46..cd15e0801228 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1688,6 +1688,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
unsigned int key_size, opt_params;
unsigned long long tmpll;
int ret;
+ size_t iv_size_padding;
struct dm_arg_set as;
const char *opt_string;
char dummy;
@@ -1724,20 +1725,32 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
cc->dmreq_start = sizeof(struct ablkcipher_request);
cc->dmreq_start += crypto_ablkcipher_reqsize(any_tfm(cc));
- cc->dmreq_start = ALIGN(cc->dmreq_start, crypto_tfm_ctx_alignment());
- cc->dmreq_start += crypto_ablkcipher_alignmask(any_tfm(cc)) &
- ~(crypto_tfm_ctx_alignment() - 1);
+ cc->dmreq_start = ALIGN(cc->dmreq_start, __alignof__(struct dm_crypt_request));
+
+ if (crypto_ablkcipher_alignmask(any_tfm(cc)) < CRYPTO_MINALIGN) {
+ /* Allocate the padding exactly */
+ iv_size_padding = -(cc->dmreq_start + sizeof(struct dm_crypt_request))
+ & crypto_ablkcipher_alignmask(any_tfm(cc));
+ } else {
+ /*
+ * If the cipher requires greater alignment than kmalloc
+ * alignment, we don't know the exact position of the
+ * initialization vector. We must assume worst case.
+ */
+ iv_size_padding = crypto_ablkcipher_alignmask(any_tfm(cc));
+ }
cc->req_pool = mempool_create_kmalloc_pool(MIN_IOS, cc->dmreq_start +
- sizeof(struct dm_crypt_request) + cc->iv_size);
+ sizeof(struct dm_crypt_request) + iv_size_padding + cc->iv_size);
if (!cc->req_pool) {
ti->error = "Cannot allocate crypt request mempool";
goto bad;
}
cc->per_bio_data_size = ti->per_bio_data_size =
- sizeof(struct dm_crypt_io) + cc->dmreq_start +
- sizeof(struct dm_crypt_request) + cc->iv_size;
+ ALIGN(sizeof(struct dm_crypt_io) + cc->dmreq_start +
+ sizeof(struct dm_crypt_request) + iv_size_padding + cc->iv_size,
+ ARCH_KMALLOC_MINALIGN);
cc->page_pool = mempool_create_page_pool(MIN_POOL_PAGES, 0);
if (!cc->page_pool) {